常用合金结构钢牌号和化学成分表

化学成分(%)牌号 C 50CrVA 20CrMnSi 25CrMnSi 30CrMnSi 30CrMnSiA 35CrMnSiA 20CrMnMo 40CrMnM0 20GrMnTi 30CrMnTi 20CrNi 40CrNi 45CrNi 12CrNi2 12CrNi3 20CrNi3 0.47~0.54 0.17~0.23 0.22~0.28 0.27~0.34 0.28~0.34 0.32~0.39 0.17~0.23 0.37~0.45 0.17~0.23 0.24~0.32 0.17~0.23 0.37~0.44 0.42~0.49 0.10~0.17 0.10~0.17 0.17~0.24 S 0.17~0.37 0.90~1.20 0.90~1.20 0.90~1.20 0.90~1.20 1.10~1.40 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 Mn 0.50~0.80 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 0.90~1.20 0.90~1.20 0.80~1.10 0.80~1.10 0.40~0.70 0.50~0.80 0.50~0.80 0.30~0.60 0.30~0.60 0.30~0.60 0.20~0.30 0.20~0.30 Mo W Cr 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 1.10~1.40 1.10~1.40 0.90~1.20 1.00~1.30 1.00~1.30 0.45~0.75 0.45~0.75 0.45~0.75 0.60~0.90 0.60~0.90 0.60~0.90 1.00~1.40 1.00~1.40 1.00~1.40 1.50~1.90 2.75~3.15 2.75~3.15 0.04~0.10 0.04~0.10 Ni V 0.10~0.20 Ti B A1 RE (加入量)

常用合金结构钢牌号和化学成分表

30CrNi3 37CrNi3 12Cr2Ni4 20Cr2Ni4 18Cr2Ni4WA

0.27~0.33 0.34~0.41 0.10~0.16 0.17~0.23 0.13~0.19

0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37

0.30~0.60 0.30~0.60 0.30~0.60 0.30~0.60 0.30~0.60 0.80~1.20

0.60~0.90 l.20~1.60 1.25~1.65 1.25~1.65 1.35~1.65

2.75~3.15 3.00~3.50 3.25~3.65 3.25~3.65 4.00~4.50

常用合金结构钢牌号和化学成分表

常用合金结构钢牌号和化学成分表 (GB3077-1999)化学成分(%)牌号 C 20Mn2 30Mn2 40Mn2 45Mn2 50Mn2 15Cr 20Cr 30Cr 35Cr 40Cr 45Cr 50Cr 38CrSi 12CrMo 15CrMo 20CrMo 30CrMo 30CrMoA 0.17~0.24 0.27~0.34 0.37~0.44 0.42~0.49 0.47~0.55 0.12~0.18 0.18~0.24 0.27~0.34 0.32~0.39 0.37~0.44 0.42~0.49 0.47~0.54 0.35~0.43 0.08~0.15 0.12~0.18 0.17~0.24 0.26~0.34 0.26~0.33 Si 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 1.00~1.30 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 0.17~0.37 Mn 1.4~1.8 1.4~1.8 1.4~1.8 1.4~1.8 1.4~1.8 0.40~0.70 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.50~0.80 0.30~0.60 0.40~0.70 0.40~0.70 0.40~0.70 0.40~0.70 0.40~0.70 0.40~0.55 0.40~0.55 0.15~0.25 0.15~0.25 0.15~0.25 0.70~1.00 0.70~1.00 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 1.30~1.60 0.40~0.70 0.80~1.10 0.80~1.10 0.80~1.10 0.80~1.10 Mo W Cr Ni V Ti B A1 RE (加人量)

常用合金结构钢牌号和化学成分表

35CrMo 42CrMo 38CrMo 40CrV

0.32~0.40 0.38~0.45 0.35~0.42 0.37~0.44

0.17~0.37 0.17~0.37 0.20~0.45 0.17~0.37

0.40~0.70 0.50~0.80 0.30~0.60 0.50~0.80

0.15~0.25 0.15~0.25 0.15~0.25

0.80~1.10 0.90~1.20 1.35~1.60 0.80~1.10 0.10~0.20 0.70~ 1.10