15-5PH / X5CrNiCuNb15-5 vs X50CrMoV15: 68% composition overlap. Moderate differences, generally not direct substitutes.
15-5PH / X5CrNiCuNb15-5 vs X50CrMoV15
Side-by-side chemical composition and mechanical property comparison.
Overview
15-5PH / X5CrNiCuNb15-5
1.4545
Martensitic precipitation-hardening stainless steel. Similar to 17-4PH but with better transverse ductility and toughness due to lower delta ferrite. Used for aerospace structural components, nuclear reactor parts, food processing equipment, and high-performance fasteners.
X50CrMoV15
1.4116
Premium martensitic stainless steel with 0.50% C, 15% Cr, Mo and V additions. The signature blade steel of German knife manufacturers (Wüsthof, Zwilling J.A. Henckels, Victorinox Swiss Army). Mo and V improve corrosion resistance, hardenability, and toughness beyond basic Cr13 grades. Achieves 55-57 HRC. Excellent rust resistance, easy sharpening, and good edge retention. Also known as Krupp 4116. Equivalent to 5Cr15MoV (Chinese).
| 15-5PH / X5CrNiCuNb15-5 | X50CrMoV15 | |
|---|---|---|
| Material Number | 1.4545 | 1.4116 |
| Category | Stainless Steel | Stainless Steel |
| Standard | AMS 5659 | EN 10088-2 |
Chemical composition (wt%)
| Element | 15-5PH / X5CrNiCuNb15-5 | X50CrMoV15 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0.45–0.55% | No overlap |
| Si | 0–1% | ≤ 1% | OK |
| Mn | 0–1% | ≤ 1% | OK |
| P | 0–0.03% | ≤ 0.04% | OK |
Mechanical properties
| Property | 15-5PH / X5CrNiCuNb15-5 | X50CrMoV15 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | ≥ 900 | MPa |
| yield_strength | ≥ 1170 | ≥ 700 | MPa |
| elongation | ≥ 10 | ≥ 8 | % |
Compatibility Assessment
15-5PH / X5CrNiCuNb15-5 and X50CrMoV15 have moderate differences (68% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 15-5PH / X5CrNiCuNb15-5 the same as X50CrMoV15?
15-5PH / X5CrNiCuNb15-5 and X50CrMoV15 have a 68% composition overlap. They are generally not directly interchangeable.
Can I replace 15-5PH / X5CrNiCuNb15-5 with X50CrMoV15?
Generally not recommended. The compositions differ significantly (68% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 15-5PH / X5CrNiCuNb15-5 and X50CrMoV15?
The main differences are in the following elements: C. 15-5PH / X5CrNiCuNb15-5 is a Stainless Steel grade, while X50CrMoV15 is a Stainless Steel grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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