304L vs Super Duplex 2507: 52% composition overlap. Moderate differences, generally not direct substitutes.
304L vs Super Duplex 2507
Side-by-side chemical composition and mechanical property comparison.
Overview
304L
1.4307
Low-carbon version of 304. Maximum 0.030% C prevents sensitization during welding — no post-weld heat treatment needed. The standard choice for welded structures in food, chemical, and pharmaceutical industries. Often dual-certified with 1.4301.
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.
| 304L | Super Duplex 2507 | |
|---|---|---|
| Material Number | 1.4307 | 1.4410 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-2 |
Chemical composition (wt%)
| Element | 304L | Super Duplex 2507 | Overlap |
|---|---|---|---|
| C | 0–0.03% | 0–0.03% | OK |
| Si | 0–1% | 0–0.8% | OK |
| Mn | 0–2% | 0–1.2% | OK |
| P | 0–0.045% | 0–0.035% | OK |
Mechanical properties
| Property | 304L | Super Duplex 2507 | Unit |
|---|---|---|---|
| tensile_strength | 500–700 | 730–930 | MPa |
| yield_strength | ≥ 200 | ≥ 530 | MPa |
| elongation | ≥ 45 | ≥ 20 | % |
Compatibility Assessment
304L and Super Duplex 2507 have moderate differences (52% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 304L the same as Super Duplex 2507?
304L and Super Duplex 2507 have a 52% composition overlap. They are generally not directly interchangeable.
Can I replace 304L with Super Duplex 2507?
Generally not recommended. The compositions differ significantly (52% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 304L and Super Duplex 2507?
The main differences are in the following elements: Cr, Ni, N. 304L 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.