High purity stainless steel fittings are widely used to connect high purity tubing for transportation high purity gases or liquids for many precision and high-tech industries, such as Semiconductor industry, Microelectronic industry, optics, and aerospace industries, and so on.
Younglee factory is a reputable manufacturer and supplier of high purity fittings & tubing based in China. We offer a complete range of high purity stainless steel fittings, and upon request, we can provide fittings made from other materials as well. Below are the details of our high purity fittings.
High Purity stainless steel fittings Overview
High purity fittings usually refer to high purity stainless steel fittings. They are stainless steel tube fittings with inner surface bright annealed, mechanical polishing, or electro polished finishing, and with high purity and high cleanness.
- Product Name: high purity stainless steel fittings, high purity fittings
- Product types: high purity 90° Elbow, 45° high purity Elbow, high purity Tee, high purity Reducers
- Materials: Stainless steel TP 316L / EN DIN 1.4404; other steel grades are available upon requests
- Inner surface finishing:
- Bright annealed, with roughness Ra 0.5 μm -0.8 μm；
- Mechanical annealed, with roughness Ra 0.6μm -0.8μm；
- Elector-polished, with roughness Ra <=0.25μm。
- Outer surface finishing: bright annealed, mechanical polished, with roughness Ra<0.8μm；
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Our high purity fittings are suitable for orbital welding;
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Size Range available: Metric size OD 6 mm to O.D 154 mm; imperial size 1/4 inch to 6 inch;
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High purity tube fittings Marking: Brand Name, Size (OD x WT), Material, Product Standard, and Heat No.
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Packing of the high purity fittings: All tube fitting ends are capped with plastic caps; each tube fitting is packed in a separated bag. We offer packing service in clean room upon customer’s request.
Material Specifications
Stainless steel TP 316L, which is equivalent to EN DIN 1.4404, is the most commonly used material for high purity stainless steel fittings.
Here below is data sheet of material 316L / EN DIN 1.4404.
Chemical Compositions
| Element | Content （% wt） |
|---|---|
| Carbon (C) | 0.035 Max. |
| Silicon (Si) | 1.00 Max. |
| Manganese (Mn) | 2.00 Max. |
| Phosphorous (P) | 0.045 Max. |
| Sulfur (S) | 0.015 |
| Chromium (Cr) | 16.50 – 18.50 |
| Nickel (Ni) | 10.00 – 13.00 |
| Nitrogen (N) | 0.10 Max. |
| Molybdenum (Mo) | 2.00 – 2.50 |
| Iron (Fe) | Balance |
Data sheet / Catalogue Sheet of high purity fittings
Here are the size chart (data sheet) of our high purity fittings, which including 90-degree elbows, 45 degree elbows, tees and reducers.
Dimensions of High purity 90° Elbow
Imperial sizes high purity 90-degree elbows:
| Imperial Size | d1 | s1 | l1 | l3 | r1 |
| inch | mm | ||||
| 1/4″ | 6.35 | 0.89 | 66.70 | 52.40 | 14.30 |
| 3/8″ | 9.53 | 0.89 | 66.70 | 38.10 | 28.60 |
| 1/2″ | 12.70 | 1.24 | 76.20 | 49.20 | 27.00 |
| 1/2″ | 12.70 | 1.65 | 76.20 | 47.60 | 28.60 |
| 3/4″ | 19.05 | 1.24 | 76.20 | 50.20 | 26.00 |
| 3/4″ | 19.05 | 1.65 | 76.20 | 47.60 | 28.60 |
| 1″ | 25.40 | 1.65 | 76.20 | 38.10 | 38.10 |
| 1.1/2″ | 38.10 | 1.65 | 95.30 | 38.10 | 57.20 |
| 2″ | 50.80 | 1.65 | 120.70 | 44.50 | 76.20 |
| 2.1/2″ | 63.50 | 1.65 | 139.70 | 44.50 | 95.30 |
| 3″ | 76.20 | 1.65 | 158.80 | 44.50 | 114.30 |
| 4″ | 101.60 | 2.11 | 203.20 | 50.80 | 152.40 |
| 6″ | 152.40 | 2.77 | 292.10 | 63.50 | 228.60 |
| 6″ | 152.40 | 2.77 | 355.60 | 127.00 | 228.60 |
Metric size high purity 90-degree elbows:
| Metric Size | d1 | s1 | l1 | l3 | r1 |
| mm | mm | ||||
| 6.00 | 6.00 | 1.00 | 40.00 | 24.00 | 16.00 |
| 8.00 | 8.00 | 1.00 | 45.00 | 21.00 | 24.00 |
| 8.00 | 8.00 | 1.00 | 45.00 | 25.00 | 20.00 |
| 10.00 | 10.00 | 1.00 | 45.00 | 25.00 | 20.00 |
| 10.00 | 10.00 | 1.00 | 50.00 | 25.00 | 25.00 |
| 12.00 | 12.00 | 1.00 | 51.00 | 25.00 | 26.00 |
| 13.00 | 13.00 | 1.50 | 51.00 | 25.00 | 26.00 |
| 15.00 | 15.00 | 1.50 | 51.00 | 25.00 | 26.00 |
| 18.00 | 18.00 | 1.50 | 51.00 | 25.00 | 26.00 |
| 19.00 | 19.00 | 1.50 | 60.00 | 25.00 | 35.00 |
| 23.00 | 23.00 | 1.50 | 65.00 | 25.00 | 40.00 |
| 28.00 | 28.00 | 1.50 | 90.00 | 40.00 | 50.00 |
| 30.00 | 30.00 | 1.50 | 90.00 | 40.00 | 50.00 |
| 35.00 | 35.00 | 1.50 | 95.00 | 40.00 | 55.00 |
| 40.00 | 40.00 | 1.50 | 100.00 | 40.00 | 60.00 |
| 53.00 | 53.00 | 1.50 | 110.00 | 40.00 | 70.00 |
| 70.00 | 70.00 | 2.00 | 120.00 | 40.00 | 80.00 |
| 85.00 | 85.00 | 2.00 | 145.00 | 55.00 | 90.00 |
| 104.00 | 104.00 | 2.00 | 155.00 | 55.00 | 100.00 |
| 154.00 | 154.00 | 2.00 | 325.00 | 100.00 | 225.00 |
Dimensions of 45° high purity Elbow
Imperial sizes high purity 45-degree elbows:
| Imperial Size | d1 | s1 | l2 | r1 |
| inch | mm | |||
| 1/4″ | 6.35 | 0.89 | 50.80 | 14.30 |
| 3/8″ | 9.53 | 0.89 | 50.80 | 28.60 |
| 1/2″ | 12.70 | 1.24 | 57.20 | 27.00 |
| 1/2″ | 12.70 | 1.65 | 57.20 | 28.60 |
| 3/4″ | 19.05 | 1.24 | 57.20 | 26.00 |
| 3/4″ | 19.05 | 1.65 | 57.20 | 2.60 |
| 1″ | 25.40 | 1.65 | 57.20 | 38.10 |
| 1.1/2″ | 38.10 | 1.65 | 63.50 | 57.20 |
| 2″ | 50.80 | 1.65 | 76.20 | 76.20 |
| 2.1/2″ | 63.50 | 1.65 | 85.70 | 95.30 |
| 3″ | 76.20 | 1.65 | 92.10 | 114.30 |
| 4″ | 101.60 | 2.11 | 114.30 | 152.40 |
| 6″ | 152.40 | 2.77 | 158.80 | 228.60 |
| 6″ | 152.40 | 2.77 | 222.25 | 228.60 |
Metric size high purity 45-degree elbows:
| Metric Size | d1 | s1 | l2 | r1 |
| mm | mm | |||
| 6.00 | 6.00 | 1.00 | 32.10 | 16.00 |
| 8.00 | 8.00 | 1.00 | 32.10 | 13.50 |
| 8.00 | 8.00 | 1.00 | 32.10 | 24.00 |
| 10.00 | 10.00 | 1.00 | 33.30 | 20.00 |
| 10.00 | 10.00 | 1.00 | 33.30 | 24.00 |
| 12.00 | 12.00 | 1.00 | 35.80 | 26.00 |
| 13.00 | 13.00 | 1.50 | 35.80 | 26.00 |
| 15.00 | 15.00 | 1.50 | 35.80 | 26.00 |
| 18.00 | 18.00 | 1.50 | 35.80 | 26.00 |
| 19.00 | 19.00 | 1.50 | 39.50 | 35.00 |
| 23.00 | 23.00 | 1.50 | 41.60 | 40.00 |
| 28.00 | 28.00 | 1.50 | 60.70 | 50.00 |
| 30.00 | 30.00 | 1.50 | 60.70 | 50.00 |
| 35.00 | 35.00 | 1.50 | 62.00 | 55.00 |
| 40.00 | 40.00 | 1.50 | 64.90 | 60.00 |
| 53.00 | 53.00 | 1.50 | 69.00 | 70.00 |
| 70.00 | 70.00 | 2.00 | 73.10 | 80.00 |
| 85.00 | 85.00 | 2.00 | 92.30 | 90.00 |
| 104.00 | 104.00 | 2.00 | 96.40 | 100.00 |
| 154.00 | 154.00 | 2.00 | 193.20 | 225.00 |
Other sizes available upon customers’ requirements.
Dimensions of high purity Tee
Other imperial dimensions are available upon customers’ requests.
Other metric dimensions are available upon customers’ requests.
Dimensions of high purity Reducer
Other imperial dimensions are available upon customers’ requests.
Other metric sizes are available up on customers’ requests.
High purity stainless steel fittings are used in a wide range of applications where the conveyance of high purity gases or liquids is required. Some of the most common applications include:
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Semiconductor Industry: High purity stainless steel fittings are widely used in the semiconductor industry for the production of semiconductor chips and other electronic components.
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Microelectronics Industry: In the microelectronics industry, high purity stainless steel fittings are used for the manufacturing of computer chips, circuit boards, and other electronic components.
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Optics Industry: High purity stainless steel fittings are also used in the optics industry for the manufacturing of lenses, mirrors, and other optical components.
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Aerospace Industry: The aerospace industry uses high purity stainless steel fittings for the production of aircraft components, such as fuel lines, hydraulic lines, and other critical systems.
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Pharmaceutical Industry: High purity stainless steel fittings are used in the pharmaceutical industry for the production of drugs and other medical products.
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Food and Beverage Industry: The food and beverage industry uses high purity stainless steel fittings for the production of food and beverage products to ensure that they are safe for consumption.
Overall, high purity stainless steel fittings are critical components in many precision and high-tech industries where the conveyance of high purity gases or liquids is required to ensure the quality and safety of the end product.
Why Choose Us?
As a leading China high purity fittings & tubing manufacturer and supplier, customers choose our product of high purity stainless steel fittings mostly for the product and service advantages as below.
Advantages of our products and services:
- Cleanroom packaging available
- High purity, cleanliness, and smoothness:
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Suitable for orbital welding:
Our high purity fittings are suitable for orbital welding, making it easier to use and more versatile.
- Top quality raw materials
We source our raw material stainless steel from leading Chinese manufacturers, including Baosteel, Tisco, and Youngxing, known for producing top-quality stainless steel.
- Professional inspection facilities:
Our factory has a variety of professional inspection facilities, including Scanning Electron Microscope (SEM), Energy Dispersive Spectroscopy (EDS), Particle Counter, Surface Roughness Gauge, Micro Vickers, Metallography Microscope, Moisture Analyzer, Tensile Testing Machined, etc. – all of which enable us to carry out thorough inspections with precision and accuracy.
- Highest corrosion resistant performance:
With its exceptional resistance to corrosion, our high purity tube fittings are well-suited for a wide variety of applications.
- Full dimension range and accept customized dimensions:
To meet our customers’ specific requirements, we provide a complete range of sizes and accept customized sizes.
- Flexible and quick lead time:
We offer quick and flexible lead times from our factory to meet the demands of the fast-paced business world.
- TQM Quality Management system to ensure the quality:
Our Total Quality Management system controls all working processes to ensure the quality of our ultra high purity and high purity fittings & tubing meets customers’ request 100%.
Our high purity tube fittings are supplied to many customers in many countries such as USA, Singapore, Korea, Russia, Australia, and a lot of European countries.
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Our products are interchangeable with the worlds famous brands!
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