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Is it ok to use GCR 15 bearing steel as the mold?
GCr 15? Implementation standard: GB /T 18254-2002? (High carbon chromium bearing steel)

GCr 15? (B00 150) has high hardenability, and high and uniform hardness can be obtained after heat treatment. It is mainly used to manufacture steel balls, rollers and bushings on transmission shafts of internal combustion engines, electric locomotives, machine tools, tractors, rolling equipment, drilling machines, railway vehicles and mining machinery.

GCr 15? The chemical composition of (B00 150) is as follows: