🇯🇵 Japan equivalent of
51CrV41.8159
SUP1090%
Standard: JIS · Source: JIS G4801
Japanese spring steel
Other international equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇺🇸 | USA | AISI | AISI 6150 | REF |
| 🇪🇺 | Europe | EN | 51CrV4 | 100% |
| 🇪🇺 | Europe | DIN | 50CrV4 (old) | 99% |
| 🇨🇳 | China | GB | 50CrVA | 93% |