{"id":1907,"date":"2021-11-03T09:29:08","date_gmt":"2021-11-03T09:29:08","guid":{"rendered":"http:\/\/www.sino-alloy.com\/blog\/?page_id=1907"},"modified":"2022-03-28T04:31:35","modified_gmt":"2022-03-28T04:31:35","slug":"precision-seamless-steel-tube","status":"publish","type":"page","link":"https:\/\/www.sino-alloy.com\/blog\/precision-seamless-steel-tube","title":{"rendered":"DIN 2391 Seamless precision steel hydraulic tube &#038; pipe | China manufacturer factory"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1907\" class=\"elementor elementor-1907\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3d62ac6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3d62ac6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f37869f\" data-id=\"f37869f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b05ca4f elementor-widget elementor-widget-text-editor\" data-id=\"b05ca4f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Seamless precision steel tubes &amp; pipes according to DIN 2391, EN 10305-1, EN 10305-4 are widely used as hydraulic steel tubes in various hydraulic systems. So this product is known as hydraulic steel tubes also.<\/p><p>As the first class quality China seamless precision steel tube manufacturer and supplier, our factory produces precision seamless hydraulic steel tubes and pipes in a wide range of dimensions and materials.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ad6897f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ad6897f\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e25e512\" data-id=\"e25e512\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-39ebb0e elementor-widget elementor-widget-image\" data-id=\"39ebb0e\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-image\">\n\t\t\t\t\t\t\t\t\t\t\t\t<img width=\"712\" height=\"228\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2017\/06\/carbon-steel-hydraulic-tubing-2.jpg\" class=\"attachment-large size-large wp-image-553\" alt=\"carbon-steel-hydraulic-tubing\" loading=\"lazy\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2017\/06\/carbon-steel-hydraulic-tubing-2.jpg 712w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2017\/06\/carbon-steel-hydraulic-tubing-2-300x96.jpg 300w\" sizes=\"(max-width: 712px) 100vw, 712px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-370ade8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"370ade8\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-20adbd9\" data-id=\"20adbd9\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0bf9a23 elementor-widget elementor-widget-heading\" data-id=\"0bf9a23\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">Seamless precision hydraulic steel tubing standard \/ specifications<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5e6912e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5e6912e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d6e8290\" data-id=\"d6e8290\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-16d3373 elementor-widget elementor-widget-text-editor\" data-id=\"16d3373\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Our factory is one of the leading China precision steel tube manufacturers, our precision steel hydraulic tubes are produced and supplied according to most popular standards in the world, such as:<\/p><ul><li>DIN2391 \/ DIN 2391;<\/li><li>DIN 2394<\/li><li>EN 10305-1<\/li><li>EN 10305-4<\/li><li>DIN 17175<\/li><li>Equivalent ASTM standards and other standards.<\/li><\/ul>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-de8b0b6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"de8b0b6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-739fb24\" data-id=\"739fb24\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1c4c296 elementor-tabs-view-horizontal elementor-widget elementor-widget-tabs\" data-id=\"1c4c296\" data-element_type=\"widget\" data-widget_type=\"tabs.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-tabs\">\n\t\t\t<div class=\"elementor-tabs-wrapper\" role=\"tablist\" >\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-2961\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-2961\" aria-expanded=\"false\"><a href=\"\">Size  Range<\/a><\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-2962\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2962\" aria-expanded=\"false\"><a href=\"\">Materials<\/a><\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-2963\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2963\" aria-expanded=\"false\"><a href=\"\">Surface Conditions<\/a><\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-2964\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2964\" aria-expanded=\"false\"><a href=\"\">Features<\/a><\/div>\n\t\t\t\t\t\t\t\t\t<div id=\"elementor-tab-title-2965\" class=\"elementor-tab-title elementor-tab-desktop-title\" aria-selected=\"false\" data-tab=\"5\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2965\" aria-expanded=\"false\"><a href=\"\">Applications<\/a><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t<div class=\"elementor-tabs-content-wrapper\" role=\"tablist\" aria-orientation=\"vertical\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"true\" data-tab=\"1\" role=\"tab\" tabindex=\"0\" aria-controls=\"elementor-tab-content-2961\" aria-expanded=\"false\">Size  Range<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2961\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-2961\" tabindex=\"0\" hidden=\"false\"><h2><span style=\"color: var(--e-global-color-primary); font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-weight: var(--e-global-typography-primary-font-weight);\">Precision seamless hydraulic steel tube Sizes<\/span><\/h2><p>As the leading China precision seamless steel tube manufacturer, our factory manufactures and supplies\u00a0<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">precision<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">cold drawn steel seamless tubes in a wide range of sizes, as below.<\/span><\/p><ul><li>Outer Diameter: 4 mm &#8211; 89 mm; \u00a0\u00a0<\/li><li>Wall thickness: 0.5 mm &#8211; 15 mm<\/li><li>Tolerance of our precision tubes are well conformed DIN 2391, EN 10305-1, EN10305-4, and our best tolerance can reach O.D. min. +\/-0.03 mm, WT min. +\/-0.03 mm.<\/li><\/ul><div>Here below is the popular dimension list of our\u00a0<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">DIN 2391\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">precision seamless steel hydraulic tubing.<\/span><\/div><div><table style=\"border-collapse: collapse; width: 387.62pt;\" border=\"0\" width=\"646\" cellspacing=\"0\" cellpadding=\"0\"><colgroup> <col style=\"width: 28.20pt;\" width=\"47\" \/> <col style=\"width: 9.60pt;\" width=\"16\" \/> <col style=\"width: 28.20pt;\" width=\"47\" \/> <col style=\"width: 18.00pt;\" width=\"30\" \/> <col style=\"width: 28.20pt;\" width=\"47\" \/> <col style=\"width: 9.60pt;\" width=\"16\" \/> <col style=\"width: 28.20pt;\" width=\"47\" \/> <col style=\"width: 25.20pt;\" width=\"42\" \/> <col style=\"width: 39.00pt;\" width=\"65\" \/> <col style=\"width: 9.60pt;\" width=\"16\" \/> <col style=\"width: 31.20pt;\" width=\"52\" \/> <col style=\"width: 17.40pt;\" width=\"29\" \/> <col style=\"width: 52.80pt;\" width=\"88\" \/> <col style=\"width: 9.60pt;\" width=\"16\" \/> <col style=\"width: 52.80pt;\" width=\"88\" \/> <\/colgroup><tbody><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 150.00pt;\" colspan=\"7\" width=\"250\" height=\"26\">Metric Precision seamless tubing Size List<\/td><td style=\"width: 25.20pt;\" rowspan=\"31\" width=\"42\">\u00a0<\/td><td style=\"width: 212.40pt;\" colspan=\"7\" width=\"354\">Imperial Size Precision seamless hydraulic tubing Size List<\/td><\/tr><tr style=\"height: 26.40pt;\"><td style=\"height: 26.40pt; width: 28.20pt;\" width=\"47\" height=\"44\">O.D<br \/>(mm)<\/td><td style=\"width: 9.60pt;\" width=\"16\">\u00a0<\/td><td style=\"width: 28.20pt;\" width=\"47\">W. T<br \/>(mm)<\/td><td style=\"width: 18.00pt;\" width=\"30\">\u00a0<\/td><td style=\"width: 28.20pt;\" width=\"47\">O.D<br \/>(mm)<\/td><td style=\"width: 9.60pt;\" width=\"16\">\u00a0<\/td><td style=\"width: 28.20pt;\" width=\"47\">W. T<br \/>(mm)<\/td><td style=\"width: 39.00pt;\" width=\"65\">O.D<br \/>(inch)<\/td><td style=\"width: 9.60pt;\" width=\"16\">\u00a0<\/td><td style=\"width: 31.20pt;\" width=\"52\">W. T<br \/>(inch)<\/td><td style=\"width: 17.40pt;\" width=\"29\">\u00a0<\/td><td style=\"width: 52.80pt;\" width=\"88\">O.D<br \/>(mm)<\/td><td style=\"width: 9.60pt;\" width=\"16\">\u00a0<\/td><td style=\"width: 52.80pt;\" width=\"88\">W. T<br \/>(mm)<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">0.5<\/td><td style=\"width: 18pt; border-bottom-width: 0.5pt; border-bottom-color: #000000;\" rowspan=\"29\" width=\"30\">\u00a0<\/td><td style=\"width: 28.20pt;\" width=\"47\">22<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2.5<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.035<\/td><td style=\"width: 17.40pt;\" rowspan=\"29\" width=\"29\">\u00a0<\/td><td style=\"width: 52.80pt;\" width=\"88\">6.35<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">0.89<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">22<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">6.35<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">5<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">25<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">6.35<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">6<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">25<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2.5<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.035<\/td><td style=\"width: 52.80pt;\" width=\"88\">9.53<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">0.89<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">6<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">25<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">9.53<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">8<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">30<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">9.53<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">8<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">32<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.035<\/td><td style=\"width: 52.80pt;\" width=\"88\">12.7<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">0.89<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">10<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">32<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">12.7<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">10<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">34<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">12.7<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">10<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">35<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 39.00pt;\" width=\"65\">5\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.035<\/td><td style=\"width: 52.80pt;\" width=\"88\">15.88<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">0.89<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">12<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">35<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">5\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">15.88<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">12<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">38<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">4<\/td><td style=\"width: 39.00pt;\" width=\"65\">5\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">15.88<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">12<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">38<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">5\/8&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.083<\/td><td style=\"width: 52.80pt;\" width=\"88\">15.88<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">2.11<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">15<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">38<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">6<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.035<\/td><td style=\"width: 52.80pt;\" width=\"88\">19.05<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">0.89<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">15<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">42<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">19.05<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">15<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">42<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">19.05<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">16<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">42<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">3\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.083<\/td><td style=\"width: 52.80pt;\" width=\"88\">19.05<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">2.11<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">16<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">45<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.049<\/td><td style=\"width: 52.80pt;\" width=\"88\">25.4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.25<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">16<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">48<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.065<\/td><td style=\"width: 52.80pt;\" width=\"88\">25.4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">1.65<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">18<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">48<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">1&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.083<\/td><td style=\"width: 52.80pt;\" width=\"88\">25.4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">2.11<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">18<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">50<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">1&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.12<\/td><td style=\"width: 52.80pt;\" width=\"88\">25.4<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">3.05<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">18<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">50<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">6<\/td><td style=\"width: 39.00pt;\" width=\"65\">1.1\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.083<\/td><td style=\"width: 52.80pt;\" width=\"88\">31.75<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">2.11<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">20<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">60<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">3<\/td><td style=\"width: 39.00pt;\" width=\"65\">1.1\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.12<\/td><td style=\"width: 52.80pt;\" width=\"88\">31.75<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">3.05<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">20<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">60<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">1.1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.12<\/td><td style=\"width: 52.80pt;\" width=\"88\">38.1<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">3.05<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">20<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">60<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">6<\/td><td style=\"width: 39.00pt;\" width=\"65\">1.1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.165<\/td><td style=\"width: 52.80pt;\" width=\"88\">38.1<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">4.19<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">20<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">65<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">1.3\/4&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.18<\/td><td style=\"width: 52.80pt;\" width=\"88\">44.45<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">4.57<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">22<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1<\/td><td style=\"width: 28.20pt;\" width=\"47\">70<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">4<\/td><td style=\"width: 39.00pt;\" width=\"65\">2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.12<\/td><td style=\"width: 52.80pt;\" width=\"88\">50.8<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">3.05<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">22<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">1.5<\/td><td style=\"width: 28.20pt;\" width=\"47\">70<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.203<\/td><td style=\"width: 52.80pt;\" width=\"88\">50.8<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">5.16<\/td><\/tr><tr style=\"height: 15.60pt;\"><td style=\"height: 15.60pt; width: 28.20pt;\" width=\"47\" height=\"26\">22<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">2<\/td><td style=\"width: 28.20pt;\" width=\"47\">90<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 28.20pt;\" width=\"47\">5<\/td><td style=\"width: 39.00pt;\" width=\"65\">2-1\/2&#8243;<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 31.20pt;\" width=\"52\">0.18<\/td><td style=\"width: 52.80pt;\" width=\"88\">63.5<\/td><td style=\"width: 9.60pt;\" width=\"16\">x<\/td><td style=\"width: 52.80pt;\" width=\"88\">4.57<\/td><\/tr><\/tbody><\/table><\/div><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"2\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2962\" aria-expanded=\"false\">Materials<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2962\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-2962\" tabindex=\"0\" hidden=\"hidden\"><h2 style=\"font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-style: normal; font-weight: var(--e-global-typography-primary-font-weight); color: var(--e-global-color-primary);\">DIN2391 seamless precision steel tube Materials<\/h2><p>As the professional China precision seamless steel tubing manufacturer, our factory produces and supplies DIN2391 seamless precision tubes in a wide range of materials.<\/p><p>The popular steel grades of our precision pipes including:<\/p><ul><li>DIN 2391: ST37, ST37.4, ST35, ST52;<\/li><li>EN 10305-1 \/ EN 10305-4: E235, E355, E255<\/li><li>Other steel grades are available upon customer&#8217; request with a certain min. order quantity.\u00a0<\/li><\/ul><p><strong>Chemical Compositions<\/strong><\/p><table border=\"1\" width=\"726\" cellpadding=\"5\"><tbody><tr><td rowspan=\"2\" width=\"76\">Standard<\/td><td colspan=\"2\" width=\"173\">Grade<\/td><td colspan=\"5\" width=\"402\">Chemical Components (%)<\/td><\/tr><tr><td width=\"81\">Symbol<\/td><td width=\"92\">Material No.<\/td><td width=\"82\">C<\/td><td width=\"81\">Si<\/td><td width=\"82\">Mn<\/td><td width=\"67\">P<\/td><td width=\"90\">S<\/td><\/tr><tr><td rowspan=\"5\" width=\"76\">DIN2391<\/td><td width=\"81\">St 30 Si<\/td><td width=\"92\">1.0211<\/td><td width=\"82\">\u22640.10<\/td><td width=\"81\">\u22640.10<\/td><td width=\"82\">\u22640.55<\/td><td width=\"67\">\u22640.025<\/td><td width=\"90\">\u22640.025<\/td><\/tr><tr><td width=\"81\">St 30 Al<\/td><td width=\"92\">1.0212<\/td><td width=\"82\">\u22640.10<\/td><td width=\"81\">\u22640.05<\/td><td width=\"82\">\u22640.55<\/td><td width=\"67\">\u22640.025<\/td><td width=\"90\">\u22640.025<\/td><\/tr><tr><td width=\"81\">St 35<\/td><td width=\"92\">1.0308<\/td><td width=\"82\">\u22640.17<\/td><td width=\"81\">\u22640.35<\/td><td width=\"82\">\u22650.40<\/td><td width=\"67\">\u22640.025<\/td><td width=\"90\">\u22640.025<\/td><\/tr><tr><td width=\"81\">St 45<\/td><td width=\"92\">1.0408<\/td><td width=\"82\">\u22640.21<\/td><td width=\"81\">\u22640.35<\/td><td width=\"82\">\u22650.40<\/td><td width=\"67\">\u22640.025<\/td><td width=\"90\">\u22640.025<\/td><\/tr><tr><td width=\"81\">St 52<\/td><td width=\"92\">1.058<\/td><td width=\"82\">\u22640.22<\/td><td width=\"81\">\u22640.55<\/td><td width=\"82\">\u22641.60<\/td><td width=\"67\">\u22640.025<\/td><td width=\"90\">\u22640.025<\/td><\/tr><\/tbody><\/table><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"3\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2963\" aria-expanded=\"false\">Surface Conditions<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2963\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-2963\" tabindex=\"0\" hidden=\"hidden\"><h2 style=\"font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-style: normal; font-weight: var(--e-global-typography-primary-font-weight); color: var(--e-global-color-primary);\">DIN2391 precision seamless hydraulic tubing Delivery Condition<\/h2><div>Seamless steel precision pipes are<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\"> produced by either cold drawn or cold rolled or both processes. The precision seamless hydraulic tubes usually are supplied with one of the below delivery conditions:<\/span><\/div><div><table border=\"1\" width=\"726\" cellpadding=\"5\"><tbody><tr><td width=\"189\">Delivery Condition<\/td><td width=\"57\">Symbol<\/td><td width=\"406\">Description<\/td><\/tr><tr><td width=\"189\">Cold finished (hard)<\/td><td width=\"57\">BK<\/td><td width=\"406\">The seamless tubes are not heat treated after the final cold forming and so have a rather high resistance to deformation.<\/td><\/tr><tr><td width=\"189\">Cold finished (soft)<\/td><td width=\"57\">BKW<\/td><td width=\"406\">The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding).<\/td><\/tr><tr><td width=\"189\">Cold finished and stress-relieved<\/td><td width=\"57\">BKS<\/td><td width=\"406\">The seamless pipes are Heat treated after the last cold drawn or cold roll process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree.<\/td><\/tr><tr><td width=\"189\">Annealed<\/td><td width=\"57\">GBK<\/td><td width=\"406\">The last cold forming process is followed by annealing in a controlled atmosphere.<\/td><\/tr><tr><td width=\"189\">Normalized<\/td><td width=\"57\">NBK<\/td><td width=\"406\">The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere.<\/td><\/tr><\/tbody><\/table><p><strong>Delivery Condition Symbol in accordance with EN10305 and DIN2391.<\/strong><\/p><table border=\"1\" width=\"726\" cellpadding=\"5\"><tbody><tr><td width=\"321\"><strong>Symbol in accordance with EN 10305<\/strong><\/td><td width=\"331\"><strong>Symbol in accordance with DIN2391<\/strong><\/td><\/tr><tr><td width=\"321\">+C<\/td><td width=\"331\">BK<\/td><\/tr><tr><td width=\"321\">+LC<\/td><td width=\"331\">BKW<\/td><\/tr><tr><td width=\"321\">+SR<\/td><td width=\"331\">BKS<\/td><\/tr><tr><td width=\"321\">+A<\/td><td width=\"331\">GBK<\/td><\/tr><tr><td width=\"321\">+N<\/td><td width=\"331\">NBK<\/td><\/tr><\/tbody><\/table><h2 style=\"font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-style: normal; font-weight: var(--e-global-typography-primary-font-weight); color: var(--e-global-color-primary);\">Precision Seamless Steel Tube Surface Treatment<\/h2><div>As one of the first class China precision seamless steel tubing manufacturer and supplier, we supply our precision seamless tubes with surface conditions as below.<\/div><ul><li><u><b>Bright Annealed surface:<\/b><\/u>\u00a0this is also known as NBK seamless steel tubes;<\/li><li><b><u>Galvanized surface:<\/u><\/b> this is known as zinc plated seamless tube also.<br \/>The seamless steel pipes are galvanized after the final heat treatment. We supply yellow galvanized precision seamless tubes and white galvanized seamless tubes.<\/li><li><b><u>Phosphated treatment:\u00a0<br \/><\/u><\/b>Bright black color is homogeneously distributed on the phosphated seamless tube surface, and the phosphated seamless tubes have good anti-rust and corrosion resistance performance.<\/li><\/ul><\/div><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"4\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2964\" aria-expanded=\"false\">Features<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2964\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-2964\" tabindex=\"0\" hidden=\"hidden\"><h2><span style=\"color: var(--e-global-color-primary); font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-weight: var(--e-global-typography-primary-font-weight);\">Advantages of Our Precision seamless hydraulic steel tubing<\/span><\/h2><div>Our precision seamless steel tubing factory manufactures and supplies DIN 2391 precision seamless steel hydraulic tubing with advantages as below.<\/div><ul><li>With high dimension accuracy, which ensures our precision seamless tubes can tightly connect to the pipe fittings, thus our precision seamless pipes have excellent performance on preventing leakages.<\/li><li>Our factory&#8217;s No deformation after cold bending, no crack after flaring and flattening. The complicated geometrical forming and machining can be realized.<\/li><li>High cleanness , no oxidization on the outer surface and inside surface after heat treatment.<\/li><li>Our factory&#8217;s cold drawn seamless steel tubes are free of rust, with no cracks and without other defects on both inner and outer wall.\u00a0<\/li><li>With the phosphated or galvanized surface, our DIN2391 precision steel hydraulic tubes has good performance of anti-rust.\u00a0<\/li><li>Our factory&#8217;s DIN 2391 precision seamless steel tube can work under high pressure, our precision seamless steel pipes are widely used as hydraulic steel tubes in various hydraulic lines and systems.<\/li><\/ul><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-tab-title elementor-tab-mobile-title\" aria-selected=\"false\" data-tab=\"5\" role=\"tab\" tabindex=\"-1\" aria-controls=\"elementor-tab-content-2965\" aria-expanded=\"false\">Applications<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-2965\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"tabpanel\" aria-labelledby=\"elementor-tab-title-2965\" tabindex=\"0\" hidden=\"hidden\"><h2 style=\"font-family: var(--e-global-typography-primary-font-family),Sans-serif; font-size: 19px; font-style: normal; font-weight: var(--e-global-typography-primary-font-weight); color: var(--e-global-color-primary);\">DIN 2391 \/EN 10305 Precision Steel Tubing Applications<\/h2><div>As the professional China precision seamless steel tube suppliers, our factory manufactured and supplied a huge number of our seamless steel precision tubes to many customers in China and abroad.<\/div><div>Our precision seamless pipes are used for hydraulic systems, automobiles, Diesel Engine, machinery, and other areas which require high precision, cleanness, and high mechanical properties performance.<\/div><div>And the seamless steel precision galvanized tubes and phosphated tubes are widely used\u00a0in hydraulic systems, machines and facilities, other applications which require good rust proof and corrosion resistance performance.<\/div><\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a475613 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a475613\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1b69585\" data-id=\"1b69585\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1dfa11f elementor-widget elementor-widget-heading\" data-id=\"1dfa11f\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-medium\">Photos of DIN 2391 \/ EN 10305 precision seamless steel hydraulic tubes<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-22c63d4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"22c63d4\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b58513b\" data-id=\"b58513b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7b4118c elementor-widget elementor-widget-image-gallery\" data-id=\"7b4118c\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-1907 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"DIN 2391 EN10305 galvanized hydraulic seamless steel tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU2OCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL0RJTi0yMzkxLUVOMTAzMDUtZ2FsdmFuaXplZC1oeWRyYXVsaWMtc2VhbWxlc3Mtc3RlZWwtdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 EN10305 galvanized hydraulic seamless steel tubing\" loading=\"lazy\" aria-describedby=\"gallery-1-2568\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-hydraulic-seamless-steel-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2568'>\n\t\t\t\tDIN 2391 ST37 Galvanized hydraulic seamless steel tubing\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"DIN 2391 \/EN10305 Galvanized seamless steel hydraulic tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU2OSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL0RJTi0yMzkxLUVOMTAzMDUtZ2FsdmFuaXplZC1zZWFtbGVzcy1zdGVlbC1oeWRyYXVsaWMtdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-seamless-steel-hydraulic-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-seamless-steel-hydraulic-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 \/EN10305 Galvanized seamless steel hydraulic tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2569\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-seamless-steel-hydraulic-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-EN10305-galvanized-seamless-steel-hydraulic-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2569'>\n\t\t\t\tGalvanized DIN 2391 ST 37.4 seamless steel hydraulic tubes\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"DIN 2391 precision seamless steel hydraulic tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3MCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL0RJTi0yMzkxLXByZWNpc2lvbi1zZWFtbGVzcy1zdGVlbC1oeWRyYXVsaWMtdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 precision seamless steel hydraulic tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2570\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes-120x120.jpg 120w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391-precision-seamless-steel-hydraulic-tubes.jpg 750w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2570'>\n\t\t\t\tPrecision DIN 2391 ST 37.4 seamless steel tubes hydraulic \n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"DIN 2391 high precision seamless steel tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3MSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL0RJTi0yMzkxaGlnaC1wcmVjaXNpb24tc2VhbWxlc3Mtc3RlZWwtdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 high precision seamless steel tubes for hydraulic\" loading=\"lazy\" aria-describedby=\"gallery-1-2571\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/DIN-2391high-precision-seamless-steel-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2571'>\n\t\t\t\tDIN 2391 \/ EN 10305 high precision seamless steel tubes\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"precision Phosphated hydraulic steel tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3MiwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL3ByZWNpc2lvbi1QaG9zcGhhdGVkLWh5ZHJhdWxpYy1zdGVlbC10dWJlcy5qcGciLCJzbGlkZXNob3ciOiI3YjQxMThjIn0%3D\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Precision Phosphated hydraulic steel tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2572\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-Phosphated-hydraulic-steel-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2572'>\n\t\t\t\tPrecision hydraulic Phosphated steel tubes\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"Precision seamless steel yellow galvanized hydraulic tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3MywidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL3ByZWNpc2lvbi1zZWFtbGVzcy1zdGVlbC15ZWxsb3ctZ2FsdmFuaXplZC1oeWRyYXVsaWMtdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-seamless-steel-yellow-galvanized-hydraulic-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-seamless-steel-yellow-galvanized-hydraulic-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 ST 37.4 Precision seamless yellow galvanized hydraulic steel tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2573\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-seamless-steel-yellow-galvanized-hydraulic-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision-seamless-steel-yellow-galvanized-hydraulic-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2573'>\n\t\t\t\tDIN2391 \/EN10305 precision galvanized seamless steel tubes for hydraulic\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"precision_bright_annealed_seamless_steel_tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3NCwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL3ByZWNpc2lvbl9icmlnaHRfYW5uZWFsZWRfc2VhbWxlc3Nfc3RlZWxfdHViZXMuanBnIiwic2xpZGVzaG93IjoiN2I0MTE4YyJ9\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"DIN 2391 ST37.4 Precision NBK seamless steel tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2574\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/precision_bright_annealed_seamless_steel_tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2574'>\n\t\t\t\tDIN 2391 \/EN10305 Precision NBK seamless steel tubes\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"Seamless Yellow galvanized steel hydraulic tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU3NSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL1NlYW1sZXNzLVllbGxvdy1nYWx2YW5pemVkLXN0ZWVsLWh5ZHJhdWxpYy10dWJlcy5qcGciLCJzbGlkZXNob3ciOiI3YjQxMThjIn0%3D\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Yellow galvanized Seamless steel tubes for hydraulic\" loading=\"lazy\" aria-describedby=\"gallery-1-2575\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Seamless-Yellow-galvanized-steel-hydraulic-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2575'>\n\t\t\t\tYellow galvanized ST37.4 Seamless steel tubes for hydraulic \n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"7b4118c\" data-elementor-lightbox-title=\"Phosphated seamless hydraulic tubes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjU4MywidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5vLWFsbG95LmNvbVwvYmxvZ1wvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMlwvMDNcL1Bob3NwaGF0ZWQtc2VhbWxlc3MtaHlkcmF1bGljLXR1YmVzLmpwZyIsInNsaWRlc2hvdyI6IjdiNDExOGMifQ%3D%3D\" href='https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes.jpg'><img width=\"150\" height=\"150\" src=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Phosphated seamless hydraulic tubes\" loading=\"lazy\" aria-describedby=\"gallery-1-2583\" srcset=\"https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes-150x150.jpg 150w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes-300x300.jpg 300w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes-400x400.jpg 400w, https:\/\/www.sino-alloy.com\/blog\/wp-content\/uploads\/2022\/03\/Phosphated-seamless-hydraulic-tubes-120x120.jpg 120w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2583'>\n\t\t\t\tDIN2391 ST37.4 Phosphated seamless hydraulic tubes\n\t\t\t\t<\/figcaption><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Seamless precision steel tubes &amp; pipes according to DIN 2391, EN 10305-1, EN 10305-4 are widely used as hydraulic steel tubes in various hydraulic systems. So this product is known as hydraulic steel tubes also. As the first class quality China seamless precision steel tube manufacturer and supplier, our factory produces precision seamless hydraulic steel &#8230; <a title=\"DIN 2391 Seamless precision steel hydraulic tube &#038; pipe | China manufacturer factory\" class=\"read-more\" href=\"https:\/\/www.sino-alloy.com\/blog\/precision-seamless-steel-tube\" aria-label=\"More on DIN 2391 Seamless precision steel hydraulic tube &#038; pipe | China manufacturer factory\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Seamless precision steel tube &amp; pipes DIN 2391 \/EN 10305 | China manufacturer factory-Younglee<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sino-alloy.com\/blog\/precision-seamless-steel-tube\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Seamless precision steel tube &amp; pipes DIN 2391 \/EN 10305 | China manufacturer factory-Younglee\" \/>\n<meta property=\"og:description\" content=\"Seamless precision steel tubes &amp; pipes according to DIN 2391, EN 10305-1, EN 10305-4 are widely used as hydraulic steel tubes in various hydraulic systems. So this product is known as hydraulic steel tubes also. As the first class quality China seamless precision steel tube manufacturer and supplier, our factory produces precision seamless hydraulic steel ... 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So this product is known as hydraulic steel tubes also. As the first class quality China seamless precision steel tube manufacturer and supplier, our factory produces precision seamless hydraulic steel ... 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