Stainless steel 200 series properties and application

How to choose stainless steel- 不锈钢 200 series properties and application

Stainless steel 200 series properties and application are as following:

There are US, China and Japan standard.

series	US (美国材料试验协会)	中国 (国标)	Japan (SUS)	Properties	Application
200	201	1Cr17Mn6Ni5N	SUS201	It is characterized by acid resistance, alkali resistance, high density, no bubble and no pinhole in polishing. It is a high-quality material for producing all kinds of watch cases and watch bands.	Mainly used for micro-decorative tubes, industrial tubes, some shallow drawn products.
	202	1Cr18Mn8Ni5N	SUS202	Mn and N are used to replace part of the nickel. Thus obtaining good mechanical properties and corrosion resistance. It is a new type of nickel-saving stainless steel, withstanding higher room temperature strength than 304, with better oxidation resistance and medium temperature strength below 800 degrees Celsius	Mainly used for micro-decorative tubes, industrial tubes, some shallow drawn products.
	2205	00Cr22Ni5Mo3N	SUS2205	Its Cr, Mo and N elements of the interval are relatively narrow, easy to achieve phase equilibrium (i.e., the two phases about half each). Improves the strength, corrosion resistance and welding performance of steel. Mostly used for high performance requirements and the need to weld the material, such as oil and gas pipelines, ETC.	Used in oil refining, chemical fertilizer, paper making, 石油. Chemical industry and other seawater-resistant, high, concentrated nitric acid and other heat exchangers and cold shower and devices