15-5PH / X5CrNiCuNb15-5 vs X6Cr17: 72% composition overlap. Some similarities but notable differences in alloying elements.
15-5PH / X5CrNiCuNb15-5 vs X6Cr17
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.
X6Cr17
1.4016
THE standard ferritic stainless steel — 16-18% Cr, no Ni. Non-hardenable, magnetic, lower cost than austenitic grades. Good corrosion resistance for indoor/mild environments. Used for kitchen sinks, automotive trim, washing machine drums, architectural panels, and catering equipment. Not suitable for welding thick sections (grain coarsening). AISI 430.
| 15-5PH / X5CrNiCuNb15-5 | X6Cr17 | |
|---|---|---|
| Material Number | 1.4545 | 1.4016 |
| Category | Stainless Steel | Stainless Steel |
| Standard | AMS 5659 | EN 10088-2 |
Chemical composition (wt%)
| Element | 15-5PH / X5CrNiCuNb15-5 | X6Cr17 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.08% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–1% | 0–1% | OK |
| P | 0–0.03% | ≤ 0.04% | OK |
Mechanical properties
| Property | 15-5PH / X5CrNiCuNb15-5 | X6Cr17 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 400–600 | MPa |
| yield_strength | ≥ 1170 | ≥ 240 | MPa |
| elongation | ≥ 10 | ≥ 20 | % |
Compatibility Assessment
15-5PH / X5CrNiCuNb15-5 and X6Cr17 share some characteristics (72% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 15-5PH / X5CrNiCuNb15-5 the same as X6Cr17?
15-5PH / X5CrNiCuNb15-5 and X6Cr17 have a 72% composition overlap. For most purposes, they can be considered similar.
Can I replace 15-5PH / X5CrNiCuNb15-5 with X6Cr17?
In many cases, yes. The compositions overlap significantly (72%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between 15-5PH / X5CrNiCuNb15-5 and X6Cr17?
The main differences are in the following elements: Cr. 15-5PH / X5CrNiCuNb15-5 is a Stainless Steel grade, while X6Cr17 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.
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.