M2 / HS6-5-2 vs X153CrMoV12: 15% composition overlap. Significantly different materials serving different application areas.
M2 / HS6-5-2 vs X153CrMoV12
Side-by-side chemical composition and mechanical property comparison.
Overview
M2 / HS6-5-2
1.3343
The most widely used high-speed steel worldwide. W-Mo-Cr-V composition gives excellent red hardness (cuts at temperatures up to 600°C). Used for twist drills, end mills, taps, reamers, bandsaw blades, and general-purpose cutting tools. The benchmark HSS grade.
X153CrMoV12
1.2379
High-carbon high-chromium ledeburitic cold work tool steel — AISI D2. 12% Cr + 1.5% C forms massive M7C3 carbides giving outstanding wear resistance and cutting edge retention. Air-hardening with minimal distortion. Lower toughness than H13. Used for blanking/stamping dies, thread rolling dies, cold forming tools, slitting cutters, and wear parts. Also popular as high-end knife steel.
| M2 / HS6-5-2 | X153CrMoV12 | |
|---|---|---|
| Material Number | 1.3343 | 1.2379 |
| Category | Tool Steel | Tool Steel |
| Standard | EN ISO 4957 | EN ISO 4957 |
Chemical composition (wt%)
| Element | M2 / HS6-5-2 | X153CrMoV12 | Overlap |
|---|---|---|---|
| C | 0.8–0.88% | 1.45–1.6% | No overlap |
| Si | 0–0.45% | 0.1–0.6% | Partial |
| Mn | 0–0.4% | 0.2–0.6% | Partial |
| P | — | 0–0.03% | — |
Mechanical properties
| Property | M2 / HS6-5-2 | X153CrMoV12 | Unit |
|---|---|---|---|
| hardness_hrc | 63–66 | 58–63 | HRC |
| hardness_hb | ≤ 248 | ≤ 255 | HB |
| e_modulus | ≥ 210 | ≥ 210 | GPa |
Compatibility Assessment
M2 / HS6-5-2 and X153CrMoV12 have significantly different compositions (15% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is M2 / HS6-5-2 the same as X153CrMoV12?
M2 / HS6-5-2 and X153CrMoV12 have a 15% composition overlap. They are generally not directly interchangeable.
Can I replace M2 / HS6-5-2 with X153CrMoV12?
Generally not recommended. The compositions differ significantly (15% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between M2 / HS6-5-2 and X153CrMoV12?
The main differences are in the following elements: C, Si, Mn, Cr. M2 / HS6-5-2 is a Tool Steel grade, while X153CrMoV12 is a Tool Steel grade.
Related Comparisons
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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.