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上一個:流體輸送用無縫鋼管 | 下一個:高壓化肥設備用無縫鋼管 |
標準:
GB/T 18984-2003
用途:
適用-45~-100℃于低溫壓力容器管道及低溫熱交換器用鋼管。
主要生產鋼管牌號:
09DG,16MnDG
機械性能:
牌號 |
Rm (MPa) |
ReL (MPa) |
A (%) |
沖擊試驗 |
|
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 |
化學成分:
牌 號
|
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 |