化学成分（%） C ≤0.15 Si Mn P ≤S ≤Cu ≤Cr 钢号 12CrMo 0.20~0.40 0.40~0.70 0.040 0.040 0.30 ≤≤≤0.40~0.70 015CrMo 0.12~0.18 0.20~0.40 0.40~0.70 0.040 0.040 0.30 ≤≤≤0.80~1.10 020CrMo 0.17~0.24 0.20~0.40 0.40~0.70 0.040 0.040 0.30 ≤≤≤0.80~1.10 030CrMo 0.26~0.34 0.20~0.40 0.40~0.70 0.040 0.040 0.30 ≤≤≤0.80~1.10 035CrMo 0.32~0.40 0.20~0.40 0.40~0.70 0.040 0.040 0.30 ≤≤≤0.80~1.10 042CrMo 0.38~0.45 0.20~0.40 0.50~0.80 0.040 0.040 0.30 ≤≤ 0.90~1.20 034CrMo 0.32~0.40 0.17~0.37 0.40~0.70 0.035 0.030 ≤≤0.90~1.30 034CrMo1A 0.32~0.40 0.17~0.37 0.40~0.70 0.035 0.030 ≤≤ 0.90~1.20 040CrMo 0.38~0.45 0.17~0.37 0.75~1.00 0.030 0.030 ＜＜ 0.80~1.10 012Cr3Mo ≤0.12 0.17~0.37 0.50~0.80 0.035 0.030 2.50~3.00 025CrMo1
0.20~0.30 0.17~0.37 0.40~0.70 ＜＜ 0.040 0.040 1.00~1.3 0
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