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 |
| |