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🇯🇵 Japan equivalent of

P20 / 40CrMnMo71.2311

SCM440 (modified)80%

Standard: JIS · Source: JIS G4105

Approximate — true P20 equivalent not standardized in JIS

Other international equivalents

CountryStandardGradeMatch
🇺🇸USAAISIAISI P20REF
🇪🇺EuropeEN40CrMnMo7100%
🇨🇳ChinaGB3Cr2Mo90%