The China equivalent of P20 / 40CrMnMo7 (1.2311) is 3Cr2Mo with a 90% composition match.
🇨🇳 China equivalent of
P20 / 40CrMnMo71.2311
Standard: GB · Source: GB/T 1299
Chinese plastic mold steel
Quick Facts
| Original | 🇨🇳 Equivalent | |
|---|---|---|
| Designation | P20 / 40CrMnMo7 | 3Cr2Mo |
| Material Number | 1.2311 | — |
| Standard | EN ISO 4957 | GB |
| Category | Tool Steel | Tool Steel |
Frequently Asked Questions
Is P20 / 40CrMnMo7 the same as 3Cr2Mo?
P20 / 40CrMnMo7 (EN ISO 4957) and 3Cr2Mo (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 P20 / 40CrMnMo7 with 3Cr2Mo?
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 P20 / 40CrMnMo7?
The GB equivalent of P20 / 40CrMnMo7 (1.2311) is 3Cr2Mo, specified in GB/T 1299.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | 40CrMnMo7 | 100% |
| 🇯🇵 | Japan | JIS | SCM440 (modified) | 80% |
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.