201 stainless steel has the characteristics of acid resistance, alkali resistance, high density, no bubbles and no pinholes after polishing. 201 stainless steel pipe is a high-quality material for making various watch cases and strap bottom covers. 201 grade steel pipes are mainly used for decorative pipes, industrial pipes and some shallow drawn products.

◆ Standards

Equivalent material of 201 stainless steel welded pipe:

• GB: 12Cr17Mn6Ni5N/1Cr17Mn6Ni5N

• ASTM: S20100/201
  

• JIS: SUS201
  

• ISO: X12CrMnN17-7-5

• EN: X12CrMnN17-7-5/1.4372