Hartstahl
JIS G3201 Grade SF640BChromium Molybdenum Steel
JIS G3221 Grade SFCM690SChromium Molybdenum Steel
JIS G3221 Grade SFCM740SNickel Chromium Molybdenum Steel
JIS G3222 Grade SFNCM690SNickel Chromium Molybdenum Steel
JIS G3222 Grade SFNCM740SNickel Chromium Molybdenum Steel
JIS G3222 Grade SFNCM780S