🇺🇸 USA equivalent of
40NiCrMo71.6563
AISI 4340 (close)REF
Standard: AISI · Source: ASTM A29
Close US equivalent — 4340 has slightly different Ni/Cr balance
Other international equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 40NiCrMo7 / 1.6563 | 100% |