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执行标准： ASTM A333（2004）---低温用无缝钢管（美标）
GB18984（2003）---低温管道用无缝钢管（国标）
产品应用：适用于-45℃～-195℃级低温压力容器管道以及低温热交换器管道用无缝钢管
低温钢管化学成分
| 标准 |
牌号 |
化学成分（%） |
| C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
Al |
| GB/T18984 |
16MnDG |
0.12～0.20 |
0.20～0.55 |
1.20～1.60 |
≤0.025 |
≤0.025 |
|
|
|
|
|
|
| 10MnDG |
≤0.13 |
0.17～0.37 |
≤1.35 |
≤0.025 |
≤0.025 |
|
|
|
|
≤0.07 |
|
| 09DG |
≤0.12 |
0.17～0.37 |
≤0.95 |
≤0.025 |
≤0.025 |
|
|
|
|
≤0.07 |
|
| 09Mn2VDG |
≤0.12 |
0.17～0.37 |
≤1.85 |
≤0.025 |
≤0.025 |
|
|
|
|
≤0.12 |
|
| 06Ni3MoDG |
≤0.08 |
0.17～0.37 |
≤0.85 |
≤0.025 |
≤0.025 |
|
2.5～3.7 |
|
0.15～0.30 |
≤0.05 |
|
| ASTM A333 |
Grade1 |
≤0.30 |
-- |
0.40～1.06 |
≤0.025 |
≤0.025 |
|
|
|
|
|
|
| Grade3 |
≤0.19 |
0.18～0.37 |
0.31～0.64 |
≤0.025 |
≤0.025 |
|
3.18～3.82 |
|
|
|
|
| Grade4 |
≤0.12 |
0.18～0.37 |
0.50～1.05 |
≤0.025 |
≤0.025 |
0.44～1.01 |
0.47～0.98 |
0.40～0.75 |
|
|
0.04～0.30 |
| Grade6 |
≤0.30 |
≥0.10 |
0.29～1.06 |
≤0.025 |
≤0.025 |
|
|
|
|
|
|
| Grade7 |
≤0.19 |
0.13～0.32 |
≤0.90 |
≤0.025 |
≤0.025 |
|
2.03～2.57 |
|
|
|
|
| Grade8 |
≤0.13 |
0.13～0.32 |
≤0.90 |
≤0.025 |
一分快三平台
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