NB/T 47009-2010_低温承压设备用低合金钢锻件
发布时间：2017-03-08 点击数：2840
NB/T 47009-2010_低温承压设备用低合金钢锻件
| 钢号 | 16MnD | 20MnMoD | 08MnNiMoVD | 10Ni3MoVD | 09MnNiD | 08Ni3D |
| C | 0.13~0.20 | 0.16~0.22 | 0.06~0.10 | 0.08~0.12 | 0.06~0.12 | ≤0.10 |
| Si | 0.20~0.60 | 0.15~0.40 | 0.20~0.40 | 0.15~0.35 | 0.15~0.35 | 0.15~0.35 |
| Mn | 1.20~1.60 | 1.10~1.40 | 1.10~1.40 | 0.70~0.90 | 1.20~1.60 | 0.40~0.90 |
| Ni | ≤0.40 | ≤0.50 | 1.20~1.70 | 2.50~3.00 | 0.45~0.85 | 3.30~3.70 |
| Mo | — | 0.20~0.35 | 0.20~0.40 | 0.20~0.30 | — | ≤0.12 |
| Cr | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 | ≤0.30 |
| Cu | ≤0.25 | ≤0.25 | ≤0.25 | ≤0.25 | ≤0.25 | ≤0.25 |
| V | — | — | 0.02~0.06 | 0.02~0.06 | — | ≤0.03 |
| Nb | ≤0.03 | — | — | — | ≤0.05 | ≤0.02 |
| P | ≤0.025 | ≤0.025 | ≤0.02 | ≤0.015 | ≤0.02 | ≤0.015 |
| S | ≤0.012 | ≤0.012 | ≤0.01 | ≤0.01 | ≤0.01 | ≤0.01 |
| 钢号 | 公称厚度 mm | 热处理状态 | 回火温度℃ | 拉伸试验 | 冲击试验 | |||
| Rm / Mpa | Rel / MPa | A / % | 试验温度℃ | （KV2）/J | ||||
| 不低于 | 不小于 | 不小于 | ||||||
| 16MnD | ≤100 | Q+T | 620 | 480~630 | 305 | 20 | -45 | 47 |
| ＞100~200 | 470~620 | 295 | 20 | -40 | ||||
| ＞200~300 | 450~600 | 275 | 20 | |||||
| 20MnMoD | ≤300 | Q+T | 620 | 530~700 | 370 | 18 | -40 | 47 |
| ＞300~500 | 510~680 | 350 | 18 | -30 | ||||
| ＞500~700 | 490~660 | 330 | 18 | |||||
| 08MnNiMoVD | ≤300 | Q+T | 620 | 600~770 | 480 | 17 | -40 | 60 |
| 10Ni3MoVD | ≤300 | Q+T | 620 | 600~770 | 480 | 17 | -50 | 80 |
| 09MnNiD | ≤200 | Q+T | 620 | 440~590 | 280 | 23 | -70 | 60 |
| ＞200~300 | 430~580 | 270 | 23 | |||||
| 08Ni3D | ≤300 | Q+T | 620 | 460~610 | 260 | 22 | -100 | 47 |
| 注：如屈服现象不明显，屈服强度取Rp0.2 | ||||||||