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Standard:
GB / T 18984-2003
Uses:
Applicable -45 ~ -100 ℃ at low temperature pressure vessels and low temperature heat exchanger pipe.
Main production steel grade:
09DG, 16MnDG
Mechanical behavior:
|
Grade |
Rm (MPa) |
ReL (MPa) |
A (%) |
Impact test |
|
|
T ( ° C ) |
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 |
chemical composition:
|
Grade
|
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 |
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