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See Chinese contents: JB/T 9204-2008 JB/T 9204-2008: Metallographic examination of induction hardened steel parts
This Standard specifies the technical requirements and corresponding inspection methods for metallographic examination of induction hardened steel parts. This Standard is applicable to the examination of mechanical parts made of medium carbon structural steel and medium carbon alloy steel with metallographic structure and effective hardened layer depth after high and medium induction hardening.
