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合金结构钢的牌号、统一数字代号和化学成分
日期: 2017-01-17
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 国标“GB/T 3077-2015 合金结构钢”第6.1部分规定的牌号、统一数字代号及化学成分(熔炼分析)如下表:

钢组序号统一数
    字代号
牌号化学成分(质量分数)%
CSiMnCrMoNiWBAlTiV
Mn1A0020220Mn20.17~0.240.17~0.371.40~1.80
2A0030230Mn20.27~0.340.17~0.371.40~1.80
3A0035235Mn20.32~0.390.17~0.371.40~1.80
4A0040240Mn20.37~0.440.17~0.371.40~1.80
5A0045245Mn20.42~0.490.17~0.371.40~1.80
6A0050250Mn20.47~0.550.17~0.371.40~1.80
MnV7A0120220MnV0.17~0.240.17~0.371.30~1.600.07-0.12
SiMn8A1027227SiMn0.24~-.321.10~1.401.10~1.40
9A1035235SiMn0.32~0.401.10~1.401.10~1.40
10A1042242SiMn0.39~0.451.10~1.401.10~1.40
SiMnMoV11A1420220SiMnMoV0.17~0.230.90~1.202.20~2.600.30~0.400.05~0.12
12A1426225SiMnMoV0.22~0.280.90~1.202.20~2.600.30~0.400.05~0.12
13A1437237SiMnMoV0.33~0.390.60~0.901.60~1.900.40~0.500.05~0.12
B14A7040240B0.37~0.440.17~0.370.60~0.900.0008~0.0035
15A7045245B0.42~0.490.17~0.270.60~0.900.0008~0.0035
16A7050250B0.47~0.550.17~0.370.60~0.900.0008~0.0035
MnB17A71250225MnB0.23~0.280.17~0.371.10~1.400.0008~0.0035
18A71350235MnB0.32~0.380.17~0.371.10~1.400.40~0.500.0008~0.0035
19A7140240MnB0.37~0.440.17~0.371.10~1.400.0008~0.0035
20A7145245MnB0,.42~0.490.17~0.371.10~1.400.0008~0.0035
MnMoB21A7220220MnMoB0.16~0.220.17~0.370.90~1.200.0008~0.0035
MnVB22A7315215MnVB0.12~0.180,.17~0.371.20~1.600.0008~0.00350.07~0.12
23A7320220MnVB0.17~0.230.17~0.371.20~1.600.0008~0.00350.07~0.12
24A7340240MnVB0.37~0.440.17~0.371.10~1.400.0008~0.00360.05~0.10
MnTiB25A7420220MnTiB0.17~0,.240.17~0.371.30~1.600.0008~0.00350.04~0.10
26A7425225MnTiBRE0.22~0.280.20~0.451.30~1.600.0008~0.00350.04~0.10
Cr27A2015215Cr0.12~0.170.17~0.370.40~0.700.70~1.00
28A2020220Cr0.18~0.240.17~0.370.50~0.800.70~1.00
29A2030230Cr0.27~0.340.17~0.370.50~0.800.80~1.10
30A2035235Cr0.32~0.390.17~0.370.50~0.800.80~1.10
31A2040240Cr0.37~0.440.17~0.370.50~0.800.80~1.10
32A2045245Cr0.42~0.490.17~0.370.50~0.800.80~1.10
33A2050250Cr0.47~0.540.17~0.370.50~0.800.80~1.10
CrSi34A2138238CrSi0.35~0.431.00~1.300.30~0.601.30~1.60
CrMo35A3012212CrMo0.08~0.150.17~0.370.40~0.700.40~0.700.40~0.55
36A3015215CrMo0.12~0.180.17~0.370.40~0.700.80~1.100.40~0.55
37A3020220CrMo0.17~0.240.17~0.370.40~0.700.80~1.100.15~0.25
38A3025225CrMo0.22~0.290.17~0.370.60~0.900.90~1,200.15~0.30
39A3030230CrMo0.26~0.330.17~0.270.40~0.700.80~1.100.15~0.25
40A3035235CrMo0.32~0.400.17~0.370.40~0.700.80~1.100.15~0.25
41A3042242CrMo0.38~0.450.17~0.370.50~0.800.90~.1200.15~0.25
42A3050250CrMo0.46~0.540.17~0.370.50~0.800.90~1.200.15~0.30
CrMoV43A3112212CrMoV0.08~0.150.17~0.370.40~0.700.30~0.600.25~0.350.15~0.30
44A3135235CrMoV0.30~0.380.17~0.370.40~0.701.00~1.300.20~0.300.10~0.20
45A3113212Cr1MoV0.08~0.150.17~0.370.40~0.700.90~1.200.25~0.350.15~0.30
46A3125225Cr2MoV0.22~0.290.17~0.370.40~0.701.50~1.800.25~0.350.15~0.30
47A3126225Cr2Mo1V0.22~0.290.17~0.370.50~0.802.10~2.500.90~1.100.30~0.50
CrMoAl48A3338238CrMoAl0.35~0.420.20~0.450.30~0.601.35~1.650.15~0.250.70~1.10
CrV49A2340240CrV0.37~0.440.17~0.370.50~0.800.80~1.100.10~0.20
50A2350250CrV0.47~0.540.17~0.370.50~0.800.80~1.100.10~0.20
CrMn51A2215215CrMn0.12~0.180.17~0.371.10~1.400.40~0.70
52A2220220CrMn0.17~0.230.17~0.370.90~1.200.90~1.20
53A2240240CrMn0.37~0.450.17~0.370.90~1.200.90~1.20
CrMnSi54A2420220CrMnSi0.17~0.230.90~1.200.80~1.100.80~1.10
55A2425225CrMnSi0.22~0.280.90~1.200.80~1.100.80~1.10
56A2430230CrMnSi0.28~0.340.90~1.200.80~1.100.80~1.10
57A2435235CrMnSi0.32~0.391.10~1.400.80~1.101.10~1.40
CrMnMo58A3420220CrMnMo0.17~0.230.17~0.370.90~1.201.10~1.400.20~0.30
59A3440240CrMnMo0.37~0.450.17~0.370.90~1.200.90~1.200.20~0.30
CrMnTi60A2620220CrMnTi0.17~0.230.17~0.370.80~1.101.00~1.300.04~0.10
61A2630230CrMnTi0.24~0.320.17~0.370.80~1.101.00~1.300.04~0.10
CrNi62A4020220CrNi0.17~0.230.17~0.370.40~0.700.45~0.751.00~1.40
63A4040240CrNi0.37~0.440.17~0.370.50~0.800.45~0.751.00~1.40
64A4045245CrNi0.42~0.490.17~0.370.50~0.800.45~0.751.00~1.40
65A4050250CrNi0.47~0.540.17~0.370.50~0.800.45~0.751.00~1.40
66A4112212CrNi20.10~0.170.17~0.370.30~0.600.60~0.901.50~1.90
67A4134234CrNi20.30~0.370.17~0.370.60~0.900.80~1.101.20~1.60
68A4212212CrNi30.10~0.170.17~0.370.30~0.600.60~0.902.75~3.15
69A4220220CrNi30.17~0.240.17~0.370.30~0.600.60~0.902.75~3.15
70A4230230CrNi30.27~0.330.17~0.370.30~0.600.60~0.902.75~3.15
71A4237237CrNi30.34~0.410.17~0.370.30~0.601.20~1.603.00~3.50
72A4312212Cr2Ni40.10~0.160.17~0.370.30~0.601.25~1.653.25~3.65
73A4320220Cr2Ni40.17~0.230.17~0.370.30~0.601.25~1.653.25~3.65
CrNiMo74A5015215CrNiMo0.13~0.180.17~0.370.70~0.900.45~0.650.45~0.600.70~1.00
75A5020220CrNiMo0.17~0.230.17~0.370.60~0.950.40~0.700.20~0.300.35~0.75
76A5030230CrNiMo0.28~0.330.17~0.370.70~0.900.70~1.000.25~0.450.60~0.80
77A5030030Cr2Ni2Mo0.26~0.340.17~0.370.50~0.801.80~2.200.30~0.501.80~2.20
78A5030030Cr2Ni4Mo0.26~0.330.17~0.370.50~0.801.20~1.500.30~0.603.30~4.30
79A5034234Cr2Ni2Mo0.30~0.380.17~0.370.50~0.801.30~1.700.15~0.301.30~1.70
80A5035235Cr2Ni4Mo0.32~0.390.17~0.370.50~0.801.60~2.000.25~0.453.60~4.10
81A5040240CrNiMo0.37~0.440.17~0.370.50~0.800.60~0.900.15~0.251.25~1.65
82A5040040CrNi2Mo0.38~0.430.17~0.370.60~0.800.70~0.900.20~0.301.65~2.00
CrMnNiMo83A5018218CrMnNiMo0.15~0.210.17~0.371.10~1.401.00~1.300.20~0.301.00~1.30
CrNiMoV84A5145245CrNiMoV0.42~0.490.17~0.370.50~0.800.80~1.100.20~0.301.30~1.800.10~0.20
CrNiW85A5218218Cr2Ni4W0.13~0.190.17~0.370.30~0.601.35~1.654.00~4.500.80~1.20
86A5225225CrNi4W0.21~0.280.17~0.370.30~0.601.35~1.654.00~4.500.80~1.20

 

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