301 vs Duplex 2205: 38% composition overlap. Significantly different materials serving different application areas.
301 vs Duplex 2205
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.
Duplex 2205
1.4462
The most widely used duplex (austenitic-ferritic) stainless steel. Balanced 50/50 microstructure provides twice the yield strength of 304/316L with superior chloride and stress corrosion resistance. Used in oil & gas, chemical processing, marine, and pulp & paper industries.
| 301 | Duplex 2205 | |
|---|---|---|
| Material Number | 1.4310 | 1.4462 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-2 |
Chemical composition (wt%)
| Element | 301 | Duplex 2205 | Overlap |
|---|---|---|---|
| C | 0.05–0.15% | 0–0.03% | No overlap |
| Si | 0–2% | 0–1% | OK |
| Mn | 0–2% | 0–2% | OK |
| P | 0–0.045% | 0–0.035% | OK |
Mechanical properties
| Property | 301 | Duplex 2205 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | 650–880 | MPa |
| yield_strength | ≥ 205 | ≥ 450 | MPa |
| elongation | ≥ 45 | ≥ 25 | % |
Compatibility Assessment
301 and Duplex 2205 have significantly different compositions (38% 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 Duplex 2205?
301 and Duplex 2205 have a 38% composition overlap. They are generally not directly interchangeable.
Can I replace 301 with Duplex 2205?
Generally not recommended. The compositions differ significantly (38% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 301 and Duplex 2205?
The main differences are in the following elements: C, Cr, Ni, N. 301 is a Stainless Steel grade, while Duplex 2205 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.