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| 低合金高強(qiáng)度結(jié)構(gòu)鋼 GB/T 1591-9４ |
| 雙擊自動(dòng)滾屏 |
發(fā)布者：qywl 發(fā)布時(shí)間：2010/3/30 閱讀：3303次 【字體：大 中 小】 |
低合金高強(qiáng)度結(jié)構(gòu)鋼 GB/T 1591-9４
|
牌號(hào)等級(jí) |
化學(xué)成份（%） |
|
Mn |
Si≤ |
P ≤ |
S ≤ |
V |
Nb |
Ti |
C ≤ |
Al≥ |
Cr≤ |
Ni≤ |
|
Q295 |
A |
0.80-1.50 |
0.55 |
0.045 |
0.045 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.16 |
|
|
|
|
Q295 |
B |
0.80-1.50 |
0.55 |
0.040 |
0.040 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.16 |
|
|
|
|
Q345 |
A |
1.00-1.60 |
0.55 |
0.045 |
0.045 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
|
|
|
|
Q345 |
B |
1.00-1.60 |
0.55 |
0.040 |
0.040 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
|
|
|
|
Q345 |
C |
1.00-1.60 |
0.55 |
0.035 |
0.035 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
|
|
|
Q345 |
D |
1.00-1.60 |
0.55 |
0.030 |
0.030 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.18 |
0.015 |
|
|
|
Q345 |
E |
1.00-1.60 |
0.55 |
0.025 |
0.025 |
0.02-0.15 |
0.015-0.06 |
0.02-0.20 |
0.18 |
0.015 |
|
|
|
Q390 |
A |
1.00-1.60 |
0.55 |
0.045 |
0.045 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
|
0.30 |
0.7 |
|
Q390 |
B |
1.00-1.60 |
0.55 |
0.040 |
0.040 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
|
0.30 |
0.7 |
|
Q390 |
C |
1.00-1.60 |
0.55 |
0.035 |
0.035 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.30 |
0.7 |
|
Q390 |
D |
1.00-1.60 |
0.55 |
0.030 |
0.030 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.30 |
0.7 |
|
Q390 |
E |
1.00-1.60 |
0.55 |
0.025 |
0.025 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.30 |
0.7 |
|
Q420 |
A |
1.00-1.70 |
0.55 |
0.045 |
0.045 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
.02-0.20 |
|
0.4 |
0.7 |
|
Q420 |
B |
1.00-1.70 |
0.55 |
0.040 |
0.040 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
|
0.4 |
0.7 |
|
Q420 |
C |
1.00-1.70 |
0.55 |
0.035 |
0.035 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.4 |
0.7 |
|
Q420 |
D |
1.00-1.70 |
0.55 |
0.030 |
0.030 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.4 |
0.7 |
|
Q420 |
E |
1.00-1.70 |
0.55 |
0.025 |
0.025 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.4 |
0.7 |
|
Q460 |
C |
1.00-1.70 |
0.55 |
0.035 |
0.035 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.7 |
0.7 |
|
Q460 |
D |
1.00-1.70 |
0.55 |
0.030 |
0.030 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.7 |
0.7 |
|
Q460 |
E |
1.00-1.70 |
0.55 |
0.025 |
0.025 |
0.02-0.20 |
0.015-0.06 |
0.02-0.20 |
0.02-0.20 |
0.015 |
0.7 |
0.7 |
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