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| 低合金高压强度结构钢的牌号和性能及化学成分 |
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发布者：www.jswfgxs.com 发布时间：2010/11/6 阅读：1157次 【字体：大 中 小】 |
|
牌号 |
等
级 |
化学成分(质量分数)(％) |
|
C
≤ |
Mn |
Si
≤ |
P
≤ |
S
≤ |
V |
Nb |
Ti |
A1
≥ |
Cr
≤ |
Ni
≤ |
|
Q295 |
A |
0.16 |
0.80-1.50 |
0.55 |
0.045 |
0.045 |
0.02-0.15 |
0.015-0.060 |
0.02-0.20 |
|
|
|
|
B |
0.040 |
0.040 |
|
|
|
|
Q345 |
A |
0.20 |
1.00-1.60 |
0.55 |
0.045 |
0.045 |
0.02-0.15 |
0.015-0.060 |
0.02-0.20 |
|
|
|
|
B |
0.040 |
0.040 |
|
|
|
|
C |
0.035 |
0.035 |
0.015 |
|
|
|
D |
0.18 |
0.030 |
0.030 |
0.015 |
|
|
|
E |
0.025 |
0.025 |
0.015 |
|
|
|
Q390 |
A |
0.20 |
1.00-1.60 |
0.55 |
0.045 |
0.045 |
0.02-0.20 |
0.015-0.060 |
0.02-0.20 |
|
0.30 |
0.70 |
|
B |
0.040 |
0.040 |
|
0.30 |
0.70 |
|
C |
0.035 |
0.035 |
0.015 |
0.30 |
0.70 |
|
D |
0.030 |
0.030 |
0.015 |
0.30 |
0.70 |
|
E |
0.025 |
0.025 |
0.015 |
0.30 |
0.70 |
|
Q420 |
A |
0.20 |
1.00-1.70 |
0.55 |
0.045 |
0.045 |
0.02-0.20 |
0.015-0.060 |
0.02-0.20 |
|
0.40 |
0.70 |
|
B |
0.040 |
0.040 |
|
0.40 |
0.70 |
|
C |
0.035 |
0.035 |
0.015 |
0.40 |
0.70 |
|
D |
0.030 |
0.030 |
0.015 |
0.40 |
0.70 |
|
E |
0.025 |
0.025 |
0.015 |
0.40 |
0.70 |
|
Q460 |
C |
0.20 |
1.00-1.70 |
0.55 |
0.035 |
0.035 |
0.02-0.20 |
0.015-0.060 |
0.02-0.20 |
0.015 |
0.70 |
0.70 |
|
D |
0.030 |
0.030 |
0.015 |
0.70 |
0.70 |
|
E |
0.025 |
0.025 |
0.015 |
0.70 |
0.70 |
|
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