S45830 S45990 S46990 S51550 S51740 S51770 S51570 0Cr19Ni9 1Cr18Ni9 1Cr17Ni7 0Cr16Ni14 0Cr18Ni9 0Cr19Ni11 00CTi 00Cr19Ni10 0Cr25Ni20 0Cr17Ni12Mo2 00Cr17Ni14Mo2 0Cr18Ni10Ti 0Cr18Ni11Nb 1Cr18Ni9Ti 00Cr17 00Cr18Mo2 0Cr13 0Cr13Al 1Cr17 Y1Cr17 1Cr17Mo 1Cr13 Y1Cr13 1Cr13Mo 2Cr13 3Cr13 Y3Cr13 3Cr13Mo 4Cr13 1Cr17Ni2 1Cr11Ni2W2MoV 2Cr13Ni2 7Cr17 8Cr17 9Cr18 11Cr17 Y11Cr17 9Cr18Mo 9Cr18MoV 1Cr17Mn6Ni5N 1Cr18Mn8Ni5N 2Cr15Mn15Ni5N Y1Cr18Ni9 0Cr19Ni9 0Cr18Ni9Cu2 0Cr18Ni9Cu3 0Cr17Ni12Mo2 00Cr17Ni14Mo2 0Cr19Ni13Mo3 00Cr19Ni13Mo3 0Cr18Ni12 1Cr18Ni12 0Cr23Ni13 0Cr7Ni7Al ML0Cr18Ni9 ML0Cr18Ni12 ML0Cr18Ni9Cu3 ML0Cr16Ni18 ML1Cr18Ni9Ti ML1Cr18Ni12 ML1Cr17 ML1Cr13 ML1Cr17Ni2

42CrMo钢的化学成分（GB/T3077-1999）ω/%

热处理：（淬火850度；冷却剂：油；回火温度560度；冷却剂：水、油）。

力学性能：抗拉强度MPa1080，屈服点MPa930，伸长率 ，断面收缩率E，冲击吸收功Ak63,钢材退火或高温回火供应状态布氏硬度GBW小于等于217。

用途：用作比40Cr钢要求强度更高或断面更大的锻件，如机车牵引用大齿轮，增压器传动齿轮、后轴、发动机气缸，1200~2000m石油深井钻杆接头与打捞工具等，可代替含镍较高的调质钢。