标准:
GB/T 18984-2003
用途:
适用-45~-100℃于低温压力容器管道及低温热交换器用钢管。
主要生产钢管牌号:
09DG,16MnDG
机械性能:
牌号 |
Rm (MPa) |
ReL (MPa) |
A (%) |
冲击试验 |
|
T (℃) |
Kv ( J) |
||||
16MnDG |
490~665 |
≥315 |
≥30 |
-45 |
≥34 |
10MnDG |
400 |
≥240 |
≥35 |
-45 |
≥34 |
09D |
385 |
≥240 |
≥35 |
-45 |
≥47 |
09Mn2VDG |
450 |
≥300 |
≥30 |
-70 |
≥47 |
化学成分:
牌 号
|
C |
Si |
Mn |
P |
S |
V |
16MnDG |
0.12~0.20 |
0.20~0.55 |
1.20~1.60 |
≤0.025 |
≤0.025 |
≤0.03 |
10MnDG | ≤0.13 | 0.17~0.37 | ≤1.35 | ≤0.025 | ≤0.025 | ≤0.07 |
09D | ≤0.12 | 0.17~0.37 | 0.95~1.35 | ≤0.025 | ≤0.025 | ≤0.07 |
09Mn2VDG | ≤0.12 | 0.17~0.37 | ≤1.85 | ≤0.025 | ≤0.025 | ≤0.12 |