The Japan equivalent of 51CrV4 (1.8159) is SUP10 with a 90% composition match.
🇯🇵 Japan equivalent of
51CrV41.8159
Standard: JIS · Source: JIS G4801
Japanese spring steel
Quick Facts
| Original | 🇯🇵 Equivalent | |
|---|---|---|
| Designation | 51CrV4 | SUP10 |
| Material Number | 1.8159 | — |
| Standard | EN 10089 | JIS |
| Category | Alloy Steel | Alloy Steel |
Frequently Asked Questions
Is 51CrV4 the same as SUP10?
51CrV4 (EN 10089) and SUP10 (JIS) are near-equivalent grades with a 90% composition overlap. Both are alloy steel grades. Minor differences may exist in alloying element ranges. For most applications, they are interchangeable. Always verify against the applicable specification for safety-critical components.
Can I substitute 51CrV4 with SUP10?
In most cases, yes. The chemical composition ranges overlap significantly (90%). However, verify mechanical property requirements for your specific application, as heat treatment practices may differ between EN 10089 and JIS standards.
What is the JIS equivalent of 51CrV4?
The JIS equivalent of 51CrV4 (1.8159) is SUP10, specified in JIS G4801.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 51CrV4 | 100% |
| 🇪🇺 | Europe | DIN | 50CrV4 (old) | 99% |
| 🇨🇳 | China | GB | 50CrVA | 93% |
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: EN 10089, JIS G4801.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.