1、1.02.5 0.51.0 0.0350.0306.08.0 GX40CrSi131.47290.300.45 0.5 1.0 12.014.0 GX40CrSi171.174016.018.0 GX40CrSi231.474522.024.0 GX40CrSi291.477627.030.0 GX130CrSi291.47771.201.40 GX40CrNiSi27-41.48230.350.50 1.525.028.0 3.55.5 GX25CrNiSi18-91.48250.150.30 17.019.0 8.010.0 GX40CrNiSi22-91.48260.300.50 21.
2、023.0 9.011.0 GX25CrNiSi20-141.483219.021.0 13.015.0 GX40CrNiSi25-121.483724.026.0 11.014.0 GX40CrNiSi25-201.4848GX40CrNiSi38-181.486536.039.0 GX40CrNiSi35-251.485734.036.0 GX30CrNiSiNb24-241.48550.250.40 0.52.0 23.025.0 Nb1.21.8GX40CrNiSiNb38-181.4849GX40CrNiSiNb35-251.48520.350.45 33.035.0 Nb0.81.
3、8 G-CoCr282.47780.100.20 0.51.5 Co18.052.0 G-NiCr28W2.487947.050.0 W4.05.5 b.耐热铸钢的室温力学性能，见表5-56。表5-56 耐热铸钢的室温力学性能铸钢件状态力学性能（不小于） 硬 度HBS300.2 /MPa b /MPa 5（%） 铁素体形800850oC退火300铸态铁素体奥氏体型奥氏体型23044015810764005220GCoCr28GNiCr28Wc.耐热铸钢的高温力学性能，见表5-66。表5-66 耐热铸钢的高温力学性能下列温度时110000h的蠕变强度MPa最高工作温度/oC600oC700oC8
4、00oC900oC1000oC1100oC19.52.575022269113.511.585090010501150110021478824446506623369.512.5175.59505570324016206.5280607238417.5100034（2） 德国DIN标准铁素体热强铸钢DIN 172451987a.铁素体热强铸钢的钢号与化学成分，见表5-67。表5-67 铁素体热强铸钢的钢号与化学成分（质量分数）（%）其他GS-C251.061901.80.230.300.600.500.800.0200.0150.30GS-22Mo41.54190.180.23Mo0.350.45GS-17CrMo5 5 1.73570.150.201.001.50Mo0.450.55GS-18CrMo9 10 1.73792.002.50Mo0.901.10GS-17CrMoV5 11 1.77091.201.50V0.200.30G-XCrNi121.41070.060.100.100.4011.512.50.801.50Mo0.50N0.05G-XCrMoV12 1 1.49310.200.2611.312.20.701.00Mo1.001.20V 0.250.35（W0.50）b.铁素体热强铸钢的力学性能，见表5-68。表5-68 铁素体热强铸钢的力学性能下列温度
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