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| 材料- |
ASTM A333 标准 低温用无缝管或焊管标准
ASTM A333 GR.6合金管的主要生产钢管牌号 Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11
STM A333 GR.6 合金管的力学性能
ASTM A333 GR.6合金管的化学成分
| 标准 |
牌号 |
抗拉强度（MPa） |
屈服强度（MPa） |
伸长率（％） |
最低冲击试验温度 |
| 纵 向 |
横 向 |
℉ |
℃ |
| ASTMA333 |
Grade 1 |
≥380 |
≥205 |
≥35 |
≥25 |
-50 |
-45 |
| Grade 3 |
≥450 |
≥240 |
≥30 |
≥20 |
-150 |
-100 |
| Grade 4 |
≥415 |
≥240 |
≥30 |
≥16.5 |
-150 |
-100 |
| Grade 6 |
≥415 |
≥240 |
≥30 |
≥16.5 |
-50 |
-45 |
| Grade 7 |
≥450 |
≥240 |
≥30 |
≥22 |
-100 |
-75 |
| Grade 8 |
≥690 |
≥515 |
≥22 |
|
-320 |
-195 |
| Grade 9 |
≥435 |
≥315 |
≥28 |
|
-100 |
-75 |
| Grade 10 |
≥550 |
≥450 |
≥22 |
|
-75 |
-60 |
| Grade 11 |
≥450 |
≥240 |
≥18 |
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化学成分（％）
| 标准 |
牌号 |
| C |
Si |
Mn |
P |
S |
Cr |
Ni |
|
| ASTM A333 |
Grade 1 |
≤0.30 |
|
0.40-1.06 |
≤0.025 |
≤0.025 |
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| Grade 3 |
≤0.19 |
0.18-0.37 |
0.31-0.64 |
≤0.025 |
≤0.025 |
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3.18-3.82 |
|
| Grade 4 |
≤0.12 |
0.18-0.37 |
0.50-1.05 |
≤0.025 |
≤0.025 |
0.44-1.01 |
0.47-0.98 |
Cu0.40-0.75, Mo0.04-0.30 |
| Grade 6 |
≤0.30 |
≥0.10 |
0.29-1.06 |
≤0.025 |
≤0.025 |
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| Grade 7 |
≤0.19 |
0.13-0.32 |
≤0.90 |
≤0.025 |
≤0.025 |
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2.03-2.57 |
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| Grade 8 |
≤0.13 |
0.13-0.32 |
≤0.90 |
≤0.025 |
≤0.025 |
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8.40-9.60 |
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| Grade 9 |
≤0.20 |
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0.40-1.06 |
≤0.025 |
≤0.025 |
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1.60-2.24 |
Cu0.75-1.25 |
| Grade 10 |
≤0.20 |
0.10-0.35 |
1.15-1.50 |
≤0.03 |
≤0.015 |
≤0.15 |
≤0.25 |
Cu≤0.015, Mo≤0.50, V≤0.12, Al≤0.06 |
| Grade 11 |
≤0.10 |
≤0.35 |
≤0.6 |
≤0.025 |
≤0.025 |
≤0.50 |
35.0-37.0 |
Mo≤0.50 |
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