Qib siab dua DNV F550 shipbuilding steel phaj yog siv txawv txav vim nws cov nqi siab thiab kev hloov pauv. Qhov tsawg kawg nkaus qhov taw qhia ntawm DNV F550 steel phaj yog 550Mpa, lub zog tensile nyob nruab nrab ntawm 670-835Mpa, thiab nws tuaj yeem tiv taus ntau dua.
DNV Qib F550 Shipbuilding Steel Phaj Chemical Composition thiab Mechanical Property:
| C max | Si max | Mn | P max | S max | N max. |
|
0.18 |
0.55 | 1.60 |
0.020 |
0.020 |
0.020 |
| Yield zog (MPa) min. | Tensile zog (MPa) | Elongation min. % |
| 550 | 670-830 | 16 |
