15-5PH / X5CrNiCuNb15-5 vs Duplex 2205: 54% composition overlap. Moderate differences, generally not direct substitutes.
15-5PH / X5CrNiCuNb15-5 vs Duplex 2205
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.
Duplex 2205
1.4462
The most widely used duplex (austenitic-ferritic) stainless steel. Balanced 50/50 microstructure provides twice the yield strength of 304/316L with superior chloride and stress corrosion resistance. Used in oil & gas, chemical processing, marine, and pulp & paper industries.
| 15-5PH / X5CrNiCuNb15-5 | Duplex 2205 | |
|---|---|---|
| Material Number | 1.4545 | 1.4462 |
| Category | Stainless Steel | Stainless Steel |
| Standard | AMS 5659 | EN 10088-2 |
Chemical composition (wt%)
| Element | 15-5PH / X5CrNiCuNb15-5 | Duplex 2205 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.03% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–1% | 0–2% | OK |
| P | 0–0.03% | 0–0.035% | OK |
Mechanical properties
| Property | 15-5PH / X5CrNiCuNb15-5 | Duplex 2205 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 650–880 | MPa |
| yield_strength | ≥ 1170 | ≥ 450 | MPa |
| elongation | ≥ 10 | ≥ 25 | % |
Compatibility Assessment
15-5PH / X5CrNiCuNb15-5 and Duplex 2205 have moderate differences (54% 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 Duplex 2205?
15-5PH / X5CrNiCuNb15-5 and Duplex 2205 have a 54% composition overlap. They are generally not directly interchangeable.
Can I replace 15-5PH / X5CrNiCuNb15-5 with Duplex 2205?
Generally not recommended. The compositions differ significantly (54% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 15-5PH / X5CrNiCuNb15-5 and Duplex 2205?
The main differences are in the following elements: Cr, Ni. 15-5PH / X5CrNiCuNb15-5 is a Stainless Steel grade, while Duplex 2205 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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