牌號 | 化學成分(質量分數)/% | |||||||||||
07MnNiMoVDR | C | Si | Mn | P | S | Ni | Cr | Mo | V | Pcm | ||
≤0.09 | ≤0.15-0.40 | ≤1.20-1.60 | ≤0.012 | ≤0.005 | 0.25-0.50 | ≤0.30 | ≤0.10-0.30 | ≤0.02-0.06 | ≤0.21 |
牌號 | 拉伸試驗 | 衝擊試驗(橫向) | 冷彎試驗 | |||
07MnNiMoVDR | ReL (Mpa) | Rm(MPa) | A(%) | 溫度℃ | Akv(J) | b=2a 180° |
≥490 | 610-730 | ≥17 | -40 | ≥100 | d=3a |