The China equivalent of X40CrMoV5-1 (1.2344) is 4Cr5MoSiV1 with a 90% composition match.
🇨🇳 China equivalent of
X40CrMoV5-11.2344
Standard: GB · Source: GB/T 1299
Quick Facts
| Original | 🇨🇳 Equivalent | |
|---|---|---|
| Designation | X40CrMoV5-1 | 4Cr5MoSiV1 |
| Material Number | 1.2344 | — |
| Standard | EN ISO 4957 | GB |
| Category | Tool Steel | Tool Steel |
Frequently Asked Questions
Is X40CrMoV5-1 the same as 4Cr5MoSiV1?
X40CrMoV5-1 (EN ISO 4957) and 4Cr5MoSiV1 (GB) are near-equivalent grades with a 90% composition overlap. Both are tool 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 X40CrMoV5-1 with 4Cr5MoSiV1?
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 ISO 4957 and GB standards.
What is the GB equivalent of X40CrMoV5-1?
The GB equivalent of X40CrMoV5-1 (1.2344) is 4Cr5MoSiV1, specified in GB/T 1299.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | X40CrMoV5-1 / 1.2344 | 100% |
| 🇯🇵 | Japan | JIS | SKD61 | 100% |
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: EN ISO 4957, GB/T 1299.
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.