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🇪🇺 Europe equivalent of

O1 / 100MnCrW41.2510

100MnCrW41.2510100%

Standard: EN · Source: EN ISO 4957

Reference grade

View full O1 / 100MnCrW4 data →

Other international equivalents

CountryStandardGradeMatch
🇺🇸USAAISIAISI O1REF
🇯🇵JapanJISSKS390%