牌号：Alloy718
其他国家对应牌号：ASTM B 637
用途描述：Is an age-hardening alloy having outstanding atrength against
temperatures from -250C to 700C and can be welded at aged condition .
Has outstanding oxidation resistance up to 980 C .
化学成分：
| Ni | Cr | Mo | Cu | Fe | etc |
| 52.5 | 19.0 | 3.0 | - | 18.5 | Ti0.9 Nb＋Ta5.1 |
机械性能：
| | H.W A G | S.T
AG | |
| 抗拉强度 | 1372 | 1343 | |
| 机械性能 | 屈服强度 | 1225 | 1176 | |
| 延伸率 | 16 | 17 | |
| 硬度 | 393 | 382 | |
