A2 / X100CrMoV5 vs X153CrMoV12: 16% composition overlap. Significantly different materials serving different application areas.
A2 / X100CrMoV5 vs X153CrMoV12
Side-by-side chemical composition and mechanical property comparison.
Overview
A2 / X100CrMoV5
1.2363
Air-hardening cold-work tool steel. Combines good wear resistance with excellent dimensional stability during heat treatment (minimal distortion). Used for punching/blanking dies, forming tools, shear blades, gauges, and precision tooling where low distortion is critical.
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.
| A2 / X100CrMoV5 | X153CrMoV12 | |
|---|---|---|
| Material Number | 1.2363 | 1.2379 |
| Category | Tool Steel | Tool Steel |
| Standard | EN ISO 4957 | EN ISO 4957 |
Chemical composition (wt%)
| Element | A2 / X100CrMoV5 | X153CrMoV12 | Overlap |
|---|---|---|---|
| C | 0.95–1.05% | 1.45–1.6% | No overlap |
| Si | 0.1–0.4% | 0.1–0.6% | OK |
| Mn | 0.4–0.8% | 0.2–0.6% | Partial |
| P | — | 0–0.03% | — |
Mechanical properties
| Property | A2 / X100CrMoV5 | X153CrMoV12 | Unit |
|---|---|---|---|
| hardness_hrc | 57–62 | 58–63 | HRC |
| hardness_hb | ≤ 229 | ≤ 255 | HB |
| e_modulus | ≥ 210 | ≥ 210 | GPa |
Compatibility Assessment
A2 / X100CrMoV5 and X153CrMoV12 have significantly different compositions (16% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is A2 / X100CrMoV5 the same as X153CrMoV12?
A2 / X100CrMoV5 and X153CrMoV12 have a 16% composition overlap. They are generally not directly interchangeable.
Can I replace A2 / X100CrMoV5 with X153CrMoV12?
Generally not recommended. The compositions differ significantly (16% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between A2 / X100CrMoV5 and X153CrMoV12?
The main differences are in the following elements: C, Mn, Cr, Mo. A2 / X100CrMoV5 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.