X40CrMoV5-1 vs 56NiCrMoV7: Both hot work tool steels — H13 for hot hardness, 1.2714 for toughness
X40CrMoV5-1 vs 56NiCrMoV7
Side-by-side chemical composition and mechanical property comparison.
Overview
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.
56NiCrMoV7
1.2714
Heavy-duty hot work tool steel with high Ni (1.5-1.8%) for exceptional toughness at working hardness. THE forging die material for hammers and presses. Better impact resistance than H13 but lower hot hardness. Also used as backing steel for composite dies. Applications: forging dies, die holders, press tools, shear blades, and heavy-duty punches.
| X40CrMoV5-1 | 56NiCrMoV7 | |
|---|---|---|
| Material Number | 1.2344 | 1.2714 |
| Category | Tool Steel | Tool Steel |
| Standard | EN ISO 4957 | EN ISO 4957 |
Chemical composition (wt%)
| Element | X40CrMoV5-1 | 56NiCrMoV7 | Overlap |
|---|---|---|---|
| C | 0.37–0.43% | 0.5–0.6% | No overlap |
| Si | 0.8–1.2% | 0.1–0.4% | No overlap |
| Mn | 0.2–0.5% | 0.6–0.9% | No overlap |
| P | 0–0.03% | 0–0.03% | OK |
Mechanical properties
| Property | X40CrMoV5-1 | 56NiCrMoV7 | Unit |
|---|---|---|---|
| tensile_strength | 1495–1960 | 1300–1700 | MPa |
| yield_strength | 1290–1570 | — | MPa |
| elongation | 13–15 | — | % |
Compatibility Assessment
H13 (1.2344) has 5% Cr for superior hot hardness and thermal fatigue resistance. 56NiCrMoV7 (1.2714) has 1.7% Ni for exceptional toughness at working hardness. Choose H13 for die casting/extrusion (max hot hardness); 1.2714 for forging dies/hammers (max toughness).
Frequently Asked Questions
Is X40CrMoV5-1 the same as 56NiCrMoV7?
X40CrMoV5-1 and 56NiCrMoV7 have a 50% composition overlap. Both hot work tool steels — H13 for hot hardness, 1.2714 for toughness
Can I replace X40CrMoV5-1 with 56NiCrMoV7?
Generally not recommended. The compositions differ significantly (50% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between X40CrMoV5-1 and 56NiCrMoV7?
The main differences are in the following elements: C, Si, Mn, Cr. X40CrMoV5-1 is a Tool Steel grade, while 56NiCrMoV7 is a Tool Steel grade.
Related Comparisons
View full data for each material:
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.