304 Stainless Steel vs Duplex 2205: 43% composition overlap. Significantly different materials serving different application areas.
304 Stainless Steel vs Duplex 2205
Side-by-side chemical composition and mechanical property comparison.
Overview
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.
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.
| 304 Stainless Steel | Duplex 2205 | |
|---|---|---|
| Material Number | 1.4301 | 1.4462 |
| Category | Stainless Steel | Stainless Steel |
| Standard | EN 10088-2 | EN 10088-2 |
Chemical composition (wt%)
| Element | 304 Stainless Steel | Duplex 2205 | Overlap |
|---|---|---|---|
| C | 0–0.07% | 0–0.03% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–2% | 0–2% | OK |
| P | 0–0.045% | 0–0.035% | OK |
Mechanical properties
| Property | 304 Stainless Steel | Duplex 2205 | Unit |
|---|---|---|---|
| tensile_strength | 520–720 | 650–880 | MPa |
| yield_strength | ≥ 210 | ≥ 450 | MPa |
| elongation | ≥ 45 | ≥ 25 | % |
Compatibility Assessment
304 Stainless Steel and Duplex 2205 have significantly different compositions (43% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 304 Stainless Steel the same as Duplex 2205?
304 Stainless Steel and Duplex 2205 have a 43% composition overlap. They are generally not directly interchangeable.
Can I replace 304 Stainless Steel with Duplex 2205?
Generally not recommended. The compositions differ significantly (43% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 304 Stainless Steel and Duplex 2205?
The main differences are in the following elements: Cr, Ni, N. 304 Stainless Steel 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.
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