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201/j3 j5 Flat Rod 25mm 50mm Diameter Hot Rolled Steering Shaft Steering
J3: High carbon, low chromium and low copper, but because of its high carbon content and little copper content, the material is a little hard, so it is not suitable for bending with higher strength. Compared with 201 stainless steel J1 material, the ductility is not so good, and it is easier to rust under the same environment.