15-5PH / X5CrNiCuNb15-5 vs 316Ti: 53% composition overlap. Moderate differences, generally not direct substitutes.
15-5PH / X5CrNiCuNb15-5 vs 316Ti
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.
316Ti
1.4571
Titanium-stabilized austenitic stainless steel with molybdenum. Stabilization prevents sensitization during prolonged high-temperature exposure. Very popular in Germany for chemical, pharmaceutical, and food processing. Being replaced internationally by 316L (1.4404) for most applications.
| 15-5PH / X5CrNiCuNb15-5 | 316Ti | |
|---|---|---|
| Material Number | 1.4545 | 1.4571 |
| Category | Stainless Steel | Stainless Steel |
| Standard | AMS 5659 | EN 10088-2 |
Chemical composition (wt%)
| Element | 15-5PH / X5CrNiCuNb15-5 | 316Ti | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.08% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–1% | 0–2% | OK |
| P | 0–0.03% | 0–0.045% | OK |
Mechanical properties
| Property | 15-5PH / X5CrNiCuNb15-5 | 316Ti | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 500–700 | MPa |
| yield_strength | ≥ 1170 | ≥ 200 | MPa |
| elongation | ≥ 10 | ≥ 40 | % |
Compatibility Assessment
15-5PH / X5CrNiCuNb15-5 and 316Ti have moderate differences (53% 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 316Ti?
15-5PH / X5CrNiCuNb15-5 and 316Ti have a 53% composition overlap. They are generally not directly interchangeable.
Can I replace 15-5PH / X5CrNiCuNb15-5 with 316Ti?
Generally not recommended. The compositions differ significantly (53% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 15-5PH / X5CrNiCuNb15-5 and 316Ti?
The main differences are in the following elements: Cr, Ni. 15-5PH / X5CrNiCuNb15-5 is a Stainless Steel grade, while 316Ti 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.