1. Overview of 201 J1 stainless steel tube WJH STAINLESS STEEL wjhsteel.com

2. 01. What is the 201 J1 stainless steel tube 02. 03. 04. CONTENTS CATALOG The production process of 201 J1 stainless steel tube Advantages of 201 J1 stainless steel tube Application of 201 J1 stainless steel tube

3. What is the 201 J1 stainless steel tube ● 200 series stainless steel was born during World War II. The 201 stainless steel tube is also one of the product types. ● It has acid and alkali resistance. Moreover, its density is very high. ● Meanwhile, after people polished it, it has no bubbles or pinholes. It is also a raw material for decorative tubes, industrial tubes and some shallow stretched products. ● Due to the different compositions of 201 stainless steel used in different fields, it has five types: J1, J2, J3, J4, and J5.

4. The production process of 201 J1 ●Use high-quality 304, 316L stainless steel raw material pipes to be empty, headed, and annealed. Then, people will cold-roll it many times. The cold-rolling of the pipe is carried out on a multi-roll mill. After cold rolling, the yield coefficient of the stainless steel tube is relatively large, and it is not easy to expand or bend. ●Therefore, to reach the sanitary standard of 201 J1 stainless steel tube. People also need to demagnetize, pickle, and straighten stainless steel pipes. ●Meanwhile, when pickling passivating, people can remove oil stains, rust spots, welding spots, oxide layers, free iron, and other dirt on the surface of the workpiece. ●Then, people will polish 201 J1 stainless steel. ●After people finish the above steps, they will carry out a quality

5. ●First of all, due to its high hardness, it is very suitable for heavy-duty applications. ●Moreover, it has good corrosion resistance. Therefore, the maintenance it requires is minimal. Meanwhile, its service life is also very long. ●Compared with the 304 stainless steel pipe, it has oxidation resistance. Therefore, people can use it in high-temperature conditions with continuous temperature of 1200 degrees. Advantages of 201 J1 stainless steel tube

6. Disadvantage of 201 J1 stainless steel tube ●Because of the high chromium content and low nickel content cannot reach a balance, people will reduce its cadmium content to 15%- 16%. ●Therefore, its corrosion resistance is not as good as other similar stainless steel tubes. ●Moreover, Manganese and copper reduce their passivate ability. Therefore, under acidic conditions, crevice corrosion often occurs. ●Even so, its application is still very extensive.

7. In the transportation of various liquids and fluids, people make good use of its pipeline advantages. Moreover, it has strong corrosion resistance. Therefore, the 201 J1 stainless steel tube is widely used in oil refineries, chemical processing, and food transportation. Application of 201 J1 stainless steel tube

8. The anti-rust treatment of stainless steel should be Sa2.5 in GB/T8923. Moreover, the depth of its surface anchor pattern is 40μm to 100μm. The residual rust and dust on the surface of the 304 stainless steel pipe should be clean Things you need to pay attention :

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