耐热铸钢的牌号与化学成分(质量分数)(%)
钢 号x09Cx09Six09Mnx09P ≤x09S ≤x09Crx09Nix09Mox09其 他
SCH1x090.20~0.40x091.50~3.00x09≤1.00x090.040x090.040x0912.00~15.00x09≤1.00x09—x09—
SCH2x09≤0.40x09≤2.00x09≤1.00x090.040x090.040x0925.00~28.00x09≤1.00x09(≤0.50)x09—
SCH3x09≤0.40x09≤2.00x09≤1.00x090.040x090.040x0912.00~15.00x09≤1.00x09(≤0.50)x09—