P265GH, also known as nuclear II or HII, is a European standard pressure vessel steel plate with high temperature performance. P265GH steel is a nuclear power steel and belongs to boiler steel plate.
P265GH nuclear power steel smelting analysis, chemical composition, chemical elements:
| C | Si | Mn | P | S | Al | N | Cr | Cu | Mo | Nb | Ni | Ti | V |
| ≤0.2 | ≤0.4 | 0.8-1.4 | ≤0.025 | ≤0.01 | ≥0.02 | ≤0.012 | ≤0.3 | ≤0.3 | ≤0.08 | ≤0.02 | ≤0.3 | ≤0.03 | ≤0.02 |
P265GH steel mechanical properties:
| Grade | Thickness (mm) | Yield strength (MPa) | Tensile strength (MPa) | Elongation A (%) | -20 degree impact test temperature and impact energy | 0 degree impact test temperature and impact energy | 20 degree impact test temperature and impact energy |
| P265GH | ≤16 | ≥265 | 410-530 | ≥22 | ≥27 | ≥34 | ≥40 |
| 16-40 | ≥255 | 410-530 | |||||
| 41-60 | ≥245 | 410-530 | |||||
| 61-100 | ≥215 | 410-530 | |||||
| 100-150 | ≥200 | 400-530 | |||||
| 150-250 | ≥185 | 390-530 |
P265GH nuclear power steel heat treatment delivery status: normalized (N), the steel plate in the normalized delivery state is relatively uniform in grain size and stable in performance.
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