17-4PH vs Super Duplex 2507: 49% composition overlap. Significantly different materials serving different application areas.
17-4PH vs Super Duplex 2507
Side-by-side chemical composition and mechanical property comparison.
Overview
17-4PH
1.4542
The most widely used precipitation-hardening stainless steel. Combines high strength (up to 1310 MPa UTS) with corrosion resistance comparable to 304. Delivered solution-annealed and hardened by simple low-temperature aging. Used in aerospace, medical, oil & gas, and nuclear applications.
Super Duplex 2507
1.4410
Super duplex stainless steel with PREN >40. Superior corrosion resistance to standard 2205 duplex, especially in chloride and H₂S environments. Used for subsea pipelines, offshore platform components, desalination plants, and chemical processing equipment.
| 17-4PH | Super Duplex 2507 | |
|---|---|---|
| Material Number | 1.4542 | 1.4410 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-3 | EN 10088-2 |
Chemical composition (wt%)
| Element | 17-4PH | Super Duplex 2507 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.03% | OK |
| Si | 0–0.7% | 0–0.8% | OK |
| Mn | 0–1.5% | 0–1.2% | OK |
| P | 0–0.04% | 0–0.035% | OK |
Mechanical properties
| Property | 17-4PH | Super Duplex 2507 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 1310 | 730–930 | MPa |
| yield_strength | ≥ 1170 | ≥ 530 | MPa |
| elongation | ≥ 10 | ≥ 20 | % |
Compatibility Assessment
17-4PH and Super Duplex 2507 have significantly different compositions (49% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 17-4PH the same as Super Duplex 2507?
17-4PH and Super Duplex 2507 have a 49% composition overlap. They are generally not directly interchangeable.
Can I replace 17-4PH with Super Duplex 2507?
Generally not recommended. The compositions differ significantly (49% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 17-4PH and Super Duplex 2507?
The main differences are in the following elements: Cr, Ni. 17-4PH is a Stainless Steel grade, while Super Duplex 2507 is a Stainless Steel grade.
Related Comparisons
View full data for each material:
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.