🇺🇸 USA equivalent of
P20 / 40CrMnMo71.2311
AISI P20T51620REF
Standard: AISI · Source: ASTM A681
Similar concept, slightly different composition
Other international equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 40CrMnMo7 | 100% |
| 🇨🇳 | China | GB | 3Cr2Mo | 90% |
| 🇯🇵 | Japan | JIS | SCM440 (modified) | 80% |