Parts for ToolsTechnicalReference Alloy steel Carbon steel User’s Guide - Technical Reference Symbols of Metals ᭹ Carbon steel and alloy steel for structural use Other countries Type Japan International U.S.A. Great Britain Germany France Russia JIS ISO AISISAE BS DIN NFBS/ENDIN/ENNF/ENгOCT S10C C10 1010 C10C10EC10R C10EC10R C10EC10R − S15C C15E4C15M2 1015 C15C15EC15R C15EC15R C15EC15R − S20C − 1020 C22, C22EC22R C22C22EC22R C22C22EC22R − C25 C25 C25 C25 S25C C25E4 1025 C25E C25E C25E − C25M2 C25R C25R C25R C30 C30 C30 C30 S30C C30E4 1030 C30E C30E C30E 30Γ C30M2 C30R C30R C30R C35 C35 C35 C35 S35C C35E4 1035 C35E C35E C35E 35Γ C35M2 C35R C35R C35R S40C C40C40E4C40M2 10391040 C40 C40 C40C40EC40EC40E 40ΓC40RC40RC40R S43C − 10421043 080A42 − − 40Γ S45C C45C45E4C45M2 10451046 C45 C45 C45C45EC45EC45E 45ΓC45RC45RC45R S48C − − − − − 45Γ C50 C50 C50 C50 S50C C50E4 1049 C50E C50E C50E 50Γ C50M2 C50R C50R C50R S53C − 10501053 − − − 50Γ C55 C55 C55 C55 S55C C55E4 1055 C55E C55E C55E − C55M2 C55R C55R C55R S58C C60C60E4C60M2 10591060 C60 C60 C60C60EC60EC60E 60ΓC60RC60RC60R Other countries Japan International Type U.S.A. Great Britain Germany France Russia JIS ISO AISISAE BS DIN NFBS/ENDIN/ENNF/ENгOCT SNC236 − − − − − 40XH Nickel SNC415(H) − − − − − − chromium SNC631(H) − − − − − 30XH3A steel SNC815(H) 15NiCr13 − 15NiCr13 15NiCr13 15NiCr13 − SNC836 − − − − − − 8615 SNCM220 20NiCrMo2 8617(H)20NiCrMoS28620(H)20NiCrMo2-2 20NiCrMo2-2 20NiCrMo2-220NiCrMoS2-220NiCrMoS2-220NiCrMoS2-2− 8622(H) SNCM240 41CrNiMo2 863741CrNiMoS28640 − − − − NickelchromiummolybdenumSNCM415SNCM420(H) − −−4320(H) −− −− − −−20XH2M(20XHM) steel SNCM431 − − − − − − SNCM439 − 4340 − − − − SNCM447 − − − − − − SNCM616 − − − − − − SNCM625 − − − − − − SNCM630 − − − − − − SNCM815 − − − − − − Note: The above chart is based on published data and not authorized by each manufacturer. L088 www.tungaloy.com