40CrMnMo7 vs X40CrMoV5-1: 37% composition overlap. Significantly different materials serving different application areas.
40CrMnMo7 vs X40CrMoV5-1
Side-by-side chemical composition and mechanical property comparison.
Overview
40CrMnMo7
1.2311
Pre-hardened plastic mold steel — delivered at 28-32 HRC, ready for machining without further heat treatment. The European equivalent of AISI P20. Cr-Mn-Mo composition for good through-hardenability in large sections. THE workhorse mold base material for injection molds, compression molds, and die casting dies. Good machinability, polishability, and photo-etchability. Used for mold frames, large injection molds, blow molds, and structural die components.
X40CrMoV5-1
1.2344
THE hot work tool steel — AISI H13 / JIS SKD61. 5% Cr + Mo + V for outstanding thermal fatigue resistance, red hardness above 40 HRC at 600°C, and excellent toughness. Air-hardening — uniform hardness in large sections with minimal distortion. Used for aluminum/zinc die casting dies, extrusion dies, forging dies, hot shear blades, and plastic molds. ESR grade available for critical applications.
| 40CrMnMo7 | X40CrMoV5-1 | |
|---|---|---|
| Material Number | 1.2311 | 1.2344 |
| Category | Tool Steel | Tool Steel |
| Standard | EN ISO 4957 | EN ISO 4957 |
Chemical composition (wt%)
| Element | 40CrMnMo7 | X40CrMoV5-1 | Overlap |
|---|---|---|---|
| C | 0.35–0.45% | 0.37–0.43% | OK |
| Si | 0.2–0.4% | 0.8–1.2% | No overlap |
| Mn | 1.3–1.6% | 0.2–0.5% | No overlap |
| P | 0–0.03% | 0–0.03% | OK |
Mechanical properties
| Property | 40CrMnMo7 | X40CrMoV5-1 | Unit |
|---|---|---|---|
| tensile_strength | 900–1050 | 1495–1960 | MPa |
| yield_strength | 700–800 | 1290–1570 | MPa |
| hardness_hrc | 28–32 | 50–56 | HRC |
Compatibility Assessment
40CrMnMo7 and X40CrMoV5-1 have significantly different compositions (37% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 40CrMnMo7 the same as X40CrMoV5-1?
40CrMnMo7 and X40CrMoV5-1 have a 37% composition overlap. They are generally not directly interchangeable.
Can I replace 40CrMnMo7 with X40CrMoV5-1?
Generally not recommended. The compositions differ significantly (37% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 40CrMnMo7 and X40CrMoV5-1?
The main differences are in the following elements: Si, Mn, Cr, Mo. 40CrMnMo7 is a Tool Steel grade, while X40CrMoV5-1 is a Tool Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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.