90MnCrV8 vs X40CrMoV5-1: 29% composition overlap. Significantly different materials serving different application areas.
90MnCrV8 vs X40CrMoV5-1
Side-by-side chemical composition and mechanical property comparison.
Overview
90MnCrV8
1.2842
Universal cold work tool steel with high carbon and manganese. Oil hardening (AISI O2). Excellent dimensional stability during heat treatment, good wear resistance, and high hardness up to 63 HRC. Easy to machine in annealed condition. Used for blanking and stamping tools, precision punches, shear blades, thread chasers, reamers, measuring gauges, woodworking tools, and cold forming dies. Equivalent to AISI O2.
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.
| 90MnCrV8 | X40CrMoV5-1 | |
|---|---|---|
| Material Number | 1.2842 | 1.2344 |
| Category | Tool Steel | Tool Steel |
| Standard | EN ISO 4957 | EN ISO 4957 |
Chemical composition (wt%)
| Element | 90MnCrV8 | X40CrMoV5-1 | Overlap |
|---|---|---|---|
| C | 0.85–0.95% | 0.37–0.43% | No overlap |
| Si | 0.1–0.4% | 0.8–1.2% | No overlap |
| Mn | 1.8–2.2% | 0.2–0.5% | No overlap |
| P | ≤ 0.03% | 0–0.03% | OK |
Mechanical properties
| Property | 90MnCrV8 | X40CrMoV5-1 | Unit |
|---|---|---|---|
| hardness_hb | ≤ 229 | ≤ 235 | HB |
| hardness_hrc | 58–63 | 50–56 | HRC |
| density | ≥ 7.66 | ≥ 7.8 | g/cm3 |
Compatibility Assessment
90MnCrV8 and X40CrMoV5-1 have significantly different compositions (29% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 90MnCrV8 the same as X40CrMoV5-1?
90MnCrV8 and X40CrMoV5-1 have a 29% composition overlap. They are generally not directly interchangeable.
Can I replace 90MnCrV8 with X40CrMoV5-1?
Generally not recommended. The compositions differ significantly (29% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 90MnCrV8 and X40CrMoV5-1?
The main differences are in the following elements: C, Si, Mn, Cr. 90MnCrV8 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.