NF A32051（1981）奥氏体中锰铸钢奥氏体中锰铸钢标准对照表：标准内容：(1) 法国NF标准奥氏体中锰铸钢的钢号与化学成分NF A32051(1981) (表 5-48a)表 5-48a 氏体中锰铸钢的钢号与化学成分（质量分数）（%）钢 号CSiMnPSVCu其他230-400-M10.500.602.000.070.060.10.3230-400-M20.200.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0230-400-M30.200.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0280-480-M10.500.602.000.070.060.10.3280-480-M20.250.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0280-480-M30.250.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0320-560-M10.500.602.000.070.060.050.3320-560-M20.320.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0320-560-M30.320.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0370-650-M10.500.602.000.070.060.10.3370-650-M20.500.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0370-650-M30.500.601.200.040.040.050.4Cr+Ni+Mo+Cu+V1.0(2) 法国NF标准奥氏体中锰铸钢的力学性能 (表 5-47b)表 5-47b 奥氏体中锰铸钢的力学性能钢 号壁厚/mm抗拉强度b/MPa屈服强度0.2/MPa伸长率(%)硬度BBS230-400-M12840023025120165230-400-M22840023025120165230-400-M32840023025120165280-480-M12848028020145190280-480-M22848028020145190280-480-M32/848028020145190320-560-M12856032015165215320-560-M22856032015165215320-560-M32856032015165215370-650-M12865037010195240370-650-M22865037010195240370-650-M132865037010195240