201 Cold-rolled stainless steel plate is a type of chromium-manganese austenitic stainless steel sheet produced through the cold rolling process. Cold rolling refers to the process of rolling stainless steel at room temperature, which makes the thickness of the steel plate more precise and the surface smoother. It is commonly used in situations where high requirements are placed on appearance and dimensional accuracy.
201 stainless steel is a low-nickel stainless steel. In terms of composition, it partially replaces nickel by increasing manganese and nitrogen elements, thus resulting in relatively lower costs. Its typical chemical composition is: chromium approximately 16% - 18%, nickel approximately 3.5% - 5.5%, manganese content is relatively high at 5.5% - 7.5%, carbon content does not exceed 0.15%, and iron is the main component. This ratio makes 201 steel plates have high strength and also possess certain corrosion resistance properties.
In terms of mechanical properties, the tensile strength of 201 cold-rolled sheet generally ranges from 520 to 750 MPa, the yield strength is approximately 275 MPa, the elongation is about 35% or more, and the hardness can reach HRB 95 - 100. Due to the high precision of the cold rolling process control, the thickness tolerance can be very small, and the surface finish Ra value is usually lower than 0.4 μm. The common thickness ranges from 0.3 to 3.0 mm.
Overall, 201 cold-rolled stainless steel sheet is a cost-effective material that is suitable for applications where there are requirements for surface cleanliness and strength, but the corrosive environment is not particularly harsh, such as in decoration, lightweight structural components, and kitchen utensils.
