耐热用螺纹连接副材料标准
| 持续工作的极限温度（参考）°C | 材料牌号 (螺栓、螺柱) | 标准代号 (螺栓、螺柱) | 材料牌号 (螺母) | 标准代号 (螺母) | |
| – | 400°C | 35A、45 | GB699 | 35 | GB699 |
| – | 500°C | 30CrMo | GB3077 | 35、45 | GB699 |
| – | 35CrMo | GB3077 | 20CrMoA | GB3077 | |
| – | 35CrMoA | GB3077 | 20CrMoA | GB3077 | |
| – | 510°C | 21CrMoV | – | 20CrMoA | GB3077 |
| – | 21CrMoV | – | 35CrMoA | GB3077 | |
| – | 550°C | 20CrMoV | – | 30CrMo | GB3077 |
| – | 21CrMoV | – | 35CrMo | GB3077 | |
| – | 570°C | 20CrMoVTiB | – | 20CrMoV | – |
| – | 20CrMoVNBTiB | – | 21CrMoV | – | |
| – | 600°C | 2Cr12WMoVNbB | YB/Z8 | 20CrMoV | – |
| – | 650°C | GH2132 | GBn177 | 21CrMoV | – |