🇺🇸 USA equivalent of
8620 / 20NiCrMo2-21.6523
AISI 8620G86200REF
Standard: AISI · Source: ASTM A29
Close match — dominant US case-hardening grade
Other international equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 20NiCrMo2-2 | 100% |
| 🇨🇳 | China | GB | 20CrNiMo | 90% |
| 🇯🇵 | Japan | JIS | SNCM220 | 88% |