202 stainless steel is 200 series stainless steel one. Low-nickel 200 series stainless steel is high manganese stainless steel, nickel content is generally below 4%, 8% manganese, are nickel-metal stainless steel. 

 Introduction 
 [1] 202 stainless steel is widely used in building decoration, municipal engineering, highway guardrail, hotel facilities, shopping malls, glass handrails, public facilities and other places. Pipe by the high-precision automation equipment, welding dissolved by its own loss, rolled and shaped, in the absence of any metal filler, the filled gas (inner and outer tube) welded together, for the TIG welding process, and solid solution for online eddy testing. Chemical composition 
 Chemical composition: 1Cr18Mn8Ni5N C: ≤ 0.15 Si: ≤ 1 Mn: 7.5-10 P: ≤ 0.06 S: ≤ 0.03 Ni: 4-6 Cr: 17-19 Mo: No Cu: No N: ≤ 0.25 Other: None