🇺🇸 USA equivalent of
34CrNiMo61.6582
AISI 4340G43400REF
Standard: AISI · Source: ASTM A29
Similar but higher Ni (1.65-2.00 vs 1.30-1.70), different Cr/Mo balance
Other international equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 34CrNiMo6 | 100% |
| 🇨🇳 | China | GB | 34CrNiMo6 | 95% |
| 🇬🇧 | United Kingdom | BS | 817M40 / EN24 | 93% |
| 🇯🇵 | Japan | JIS | SNCM439 | 88% |