301 vs Super Duplex 2507: 42% composition overlap. Significantly different materials serving different application areas.
301 vs Super Duplex 2507
Side-by-side chemical composition and mechanical property comparison.
Overview
301
1.4310
Austenitic stainless steel with the highest work-hardening rate of all 300-series grades. Lower Cr and Ni (17/7 vs 18/9 for 304) makes it metastable — cold working induces martensite transformation for extreme strength (UTS >1300 MPa in full-hard temper). THE stainless spring steel. Used for stainless springs, washers, clips, structural components requiring high strength + corrosion resistance, and railway car bodies.
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.
| 301 | Super Duplex 2507 | |
|---|---|---|
| Material Number | 1.4310 | 1.4410 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-2 |
Chemical composition (wt%)
| Element | 301 | Super Duplex 2507 | Overlap |
|---|---|---|---|
| C | 0.05–0.15% | 0–0.03% | No overlap |
| Si | 0–2% | 0–0.8% | OK |
| Mn | 0–2% | 0–1.2% | OK |
| P | 0–0.045% | 0–0.035% | OK |
Mechanical properties
| Property | 301 | Super Duplex 2507 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | 730–930 | MPa |
| yield_strength | ≥ 205 | ≥ 530 | MPa |
| elongation | ≥ 45 | ≥ 20 | % |
Compatibility Assessment
301 and Super Duplex 2507 have significantly different compositions (42% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 301 the same as Super Duplex 2507?
301 and Super Duplex 2507 have a 42% composition overlap. They are generally not directly interchangeable.
Can I replace 301 with Super Duplex 2507?
Generally not recommended. The compositions differ significantly (42% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 301 and Super Duplex 2507?
The main differences are in the following elements: C, Cr, N. 301 is a Stainless Steel grade, while Super Duplex 2507 is a Stainless Steel grade.
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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.