电厂常用钢材的化学成分和力学性能表 A1 电厂常用钢材的化学成分和力学性能表 αk（J/cm2）序号牌 号化 学 成 分（%）常 温 力 学 性 能临界点Ac1/Ac3分类号SD340-89钢 号标 准 号CMnSiCrMoVNiTiBWNbCuSPσs（MPa）σb（MPa）δs（%）αk（J/cm2）HB1Q235GB7000.14～0.220.30－0.65＜0.30－－－－－－－－－≤0.050≤0.045185～235375～46021～2627∨I-1210GB30870.07～0.140.35～0650.17～0.37≤0.15－－≤0.25－－－－≤0.25≤0.035≤0.035196333～49024I-1320BG30870.17～0.240.35～0.650.17～0.37≤0.25－－≤0.25－－－－≤0.25≤0.035≤0.035226392～58820I-1420gGB53100.17～0.240.35～0.650.17～0.37－－－－－－－－－≤0.035≤0.035245412～5492449uI-1522gGB713≤0.260.60～0.900.17～0.37－－－－－－－－－≤0.035≤0.035265420～5602459uI-1625GB6990.22～0.300.50～0.800.17～.0370.25－－≤0.25－－－－≤0.25≤0.035≤0.0352754502371uI-17St35.8DIN17175≤0.170.40～0.800.10～0.35≤0.04≤0.04215～235360～480I-18St45.8DIN17175≤0.210.40～1.200.10～0.35≤0.035≤0.035235～255410～529I-19STPT38JIS G3456≤0.250.30～0.900.10～0.35≤0.035≤0.035≥215≥372I-110STPT42JIS G3456≤0.300.30～1.00.10～0.35≤0.040≤0.035≥245≥412I-111SB42JIS G3103≤0.24≤.0900.15～0.30≤0.040≤0.035≥225412～549I-112SB46JIS G3103≤0.28≤.0900.15～0.30≤0.040≤0.035≥245451～5881360ASTM A5150.24～0.31≤.0900.15～0.40≤0.040≤0.035220115～550≥251465ASTM A5150.28～0.33≤.0900.15～0.40≤0.040≤0.035240450～585≥2315A-1ASTM A210≤0.27≤.093≤0.10≤0.058≤0.048≥255≥414≥2216CASTM A178≤0.35≤0.8≤0.060≤0.050≥255≥414≥3017BASTM A106≤0.300.29～1.060.10≤0.058≤0.048≥240≥415≥2218CASTM A106≤0.350.29～1.060.10≤0.058≤0.048≥275≥485≥201-219SB49JIS G3103≤0.31≤0.90.15～0.30≤0.040≤0.035≤265480～6171-220STPT49JIS G3456≤0.330.30～1.00.10～0.35≤0.035≤0.035≤274≤4801-22112MngGB713≤0.161.10～1.500.20～0.60≤0.035≤0.035275～295430～59019～2159uⅡA-12216MngGB7130.12～0.201.20～1.600.20～.0.60≤0.035≤0.035245～345440～65518～2159uⅡA-12316MnRGB6654≤0.201.20～1.600.20～0.60≤0.035≤0.035265～345450～65518～2127∨ⅡA-12...
