H09Cr9MoVNb用途: 用于亞臨界、臨界、超臨界鍋爐過熱器、再過熱器等關鍵部位的T/P91鋼的焊接。
H09Cr9MoVNb焊絲化學成分(質量分數) (%)
C | Mn | Si | S | P | Cr |
0.07~0.13 | ≤1.25 | ≤0.30 | ≤0.010 | ≤0.010 | 8.00~10.0 |
Mo | Cu | Nb | N | Al | Ni |
0.80~1.10 | ≤0.10 | 0.02~0.10 | 0.03~0.07 | ≤0.04 | ≤1.00 |
試驗項目 | Rm/MPa | Rel/Rp0.2/Mpa | A(%) | KV2/J(室溫) |
**值 | 620~760 | ≥540 | ≥17 |
≥27 |
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