A cold rolled stainless steel is a stainless tube manufactured with cold rolling technology. It is a thin sheet if the thickness is not greater than 3mm, and a thick plate if greater than 3mm. They are used to make corrosion-resistant components, pipes and containers for petroleum and chemical industry, medical devices, and ship equipments, etc. with the category and product numbers as follows:
1．Austenite section steel
(1) 2Cr13Mn9Ni4(2) 1Cr17Ni7(3) 1Cr17Ni8, and others are the same as in the section of hot rolling (29 categories).
2．Austenite--ferrite section steel
(1) 1Cr18Ni11Si4AlTi (2) 1Cr21Ni5Ti, and others are the same as in the section of hot rolling (2 categories).
3．Ferrite section steel :00Cr17, and others are the same as in the section of hot rolling (9 categories).
4．Martensite section steel: 1Cr17Ni2, and others are the same as in the section of hot rolling (8 categories)
