15-5PH / X5CrNiCuNb15-5 vs 304 Stainless Steel: 45% composition overlap. Significantly different materials serving different application areas.
15-5PH / X5CrNiCuNb15-5 vs 304 Stainless Steel
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.
304 Stainless Steel
1.4301
The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
| 15-5PH / X5CrNiCuNb15-5 | 304 Stainless Steel | |
|---|---|---|
| Material Number | 1.4545 | 1.4301 |
| Category | Stainless Steel | Stainless Steel |
| Standard | AMS 5659 | EN 10088-2 |
Chemical composition (wt%)
| Element | 15-5PH / X5CrNiCuNb15-5 | 304 Stainless Steel | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.07% | 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 | 304 Stainless Steel | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 520–720 | MPa |
| yield_strength | ≥ 1170 | ≥ 210 | MPa |
| elongation | ≥ 10 | ≥ 45 | % |
Compatibility Assessment
15-5PH / X5CrNiCuNb15-5 and 304 Stainless Steel have significantly different compositions (45% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 15-5PH / X5CrNiCuNb15-5 the same as 304 Stainless Steel?
15-5PH / X5CrNiCuNb15-5 and 304 Stainless Steel have a 45% composition overlap. They are generally not directly interchangeable.
Can I replace 15-5PH / X5CrNiCuNb15-5 with 304 Stainless Steel?
Generally not recommended. The compositions differ significantly (45% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 15-5PH / X5CrNiCuNb15-5 and 304 Stainless Steel?
The main differences are in the following elements: Cr, Ni. 15-5PH / X5CrNiCuNb15-5 is a Stainless Steel grade, while 304 Stainless Steel is a Stainless Steel grade.
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