Highly recommended page to collect: Practical Guide for Duplex Stainless Steel Manufacturing (1)

The use of duplex stainless steel is becoming increasingly widespread, and users are becoming more familiar with this type of stainless steel. This article introduces the characteristics of duplex stainless steel, and gives the basic principles and practical information of processing and welding duplex stainless steel, which is one of the difficulties in the application of duplex stainless steel.

The contents include: the history of duplex stainless steel, metallurgical, corrosion resistance, mechanical properties, physical properties, technical conditions, quality control, cutting, forming, welding, application and so on.

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What are the advantages of stainless steel tube heat exchangers and brass tube heat exchangers?

AS many people may know there are two typical types of tubes to constructing heat exchangers, which are seamless stainless steel tubes (including duplex stainless steel tubes S31083, 2205, S32750, 904L, etc) and brass tubes. But what are the advantages and disadvantages of this two different heat exchangers?


In fact, the biggest difference is not the heat transfer performance, corrosion resistance is good or bad, but is that copper tubes are less prone to fouling than stainless steel tubes, which many people might do not realize. To give a simple example, some commercial boilers are used without water treatment equipment, but using life is as long as 15 years. The reason is that although the water can foul scale in the copper wall, but it is only flocculent fouling, in this case, as long as we increase the flow of water, fouling scale can not precipitate down.

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Take you to the ferrite stainless steel- the type and characteristics

The reason why stainless steel is “stainless” is due to the chromium contained in it has a significant corrosion resistance.

Ferritic stainless steel is no exception.

Ferritic stainless steel is the main element of chromium (≥10.5%) and iron, and some grades only chromium, some grades in addition to chromium, but also contains other elements (such as Mo, Ti, Nb, etc.) to get some special performance.

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Looking for safety pipe connectors for hydraulic pipes?

Flanges are the most popular components in pipe and tube installations in industries, they are used to connect pipes or tubes. For most of the applications, the normal flanges are enough to provide good connection to pipe lines. However, for pipes under high pressure, such as hydraulic tubing, are they normal types of flanges still safe?

No! To provide safety and leak-free connection of the tubes and pipes under high pressure, the best way is that we use certain type of SAE Flanges.

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Welcome to Younglee Metal’s Blog

Hi, Dear visitors, we welcome you to visit our blog. Here you can find articles, company news, updates of Younglee. Younglee is a professional manufacture and supplier of pipe system products such as stainless steel seamless pipes, pipe clamps, carbon steel precision tubes, industrial valves and SAE flanges & pipe fittings.

High Purity Stainless Steel Tubing | High Purity Gas Tube

High Purity Stainless Steel Tubing | High Purity Gas Tube | High Purity Pipe Fittings

High purity stainless steel tubing is widely used in various industries where high purity, high cleanliness, and high performance are critical required, such as semiconductor industry, sports, pharmaceuticals, laboratory engineering, high purity gas industry, and more. As mostly this kind of tubing is mostly used to deliver various kinds of high purity gas for different applications, it is also known as high purity gas tubing as well.

As one of the top quality China precision stainless steel tube manufacturers, Younglee produces and supplies high purity tubes in a wide range of metric sizes and imperial sizes. Our customers include many respected companies in China & oversea countries.

Details of high purity stainless steel tubing

Ultra High purity stainless steel tubing


We produce and supply high purity tubing in stainless steel of EN DIN steel grades and AISI /UNS steel grades.

AISI / UNS steel grades: 316 / 316L, 304 / 304 L, 316Ti, 2205, S31803

EN DIN steel grades: 1. 4401 / 1.4404 /1.4435, 1.4301 /1.4307, 1.4462

316L high purity tubing is the most popular, also we produce other materials of high purity tubes on customer’s requests.

Size Range:

Tubing metric size: O.D 6 mm to O.D 120 mm, W.T 0.5 mm to 10 mm

Imperial size tubes: O.D 1/4″ to 6″

The most popular size range of the high purity stainless steel tubing is between O.D 6 mm (1/4″) to O.D 50 mm (2″), and we can supply the high purity tubes with random length or fixed length 1 meter to 8 meters.

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