Definition of stainless steel
Stainless steel is a kind of high alloy steel that can resist corrosion. It has a beautiful surface and does not need any surface treatment such as color plating or paint. Therefore, many machinery plants often do not make any paint treatment to show that they are stainless steel, while the black materials (the so-called black materials are the name of general steel and iron) must have rust prevention treatment.
Steel grade comparison table
The appellation of stainless steel varies from country to country in the world. What the most often contacts in market is China and the United States’ standards, which is called the Chinese standard and the American standard. The 200 series, 300 series and 400 series mentioned below are the American standards. Because the American standard is easy to understand, it is usually use the American standards.
Chinese standard===American standard
1cr17mn6ni5n========201
1cr18mn8ni5n========202
0cr18ni9============304
00cr19ni10==========304L
0cr18ni12mo2t=======316Ti
00cr17ni14mo2=======316L
0cr17ni12mo2========316
1cr18ni9ti==========321
0cr18ni10ti=========321
0cr23ni13===========309S
1cr20ni14===========309S
0cr25ni20===========310S
1cr25ni20===========310s
0cr13===============405
1cr13===============410
2cr13===============420
3cr13===============420
4cr3================430
The element content in the Chinese standard name generally refers to the intermediate value of the content, which is the theoretical value, and can be large or small.
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