The USA equivalent of Duplex 2205 (1.4462) is UNS S31803 (S31803) with a 95% composition match.
🇺🇸 USA equivalent of
Duplex 22051.4462
Standard: ASTM · Source: ASTM A240
Original wider-range designation, now mostly superseded by S32205
Quick Facts
| Original | 🇺🇸 Equivalent | |
|---|---|---|
| Designation | Duplex 2205 | UNS S31803 |
| Material Number | 1.4462 | S31803 |
| Standard | EN 10088-2 | ASTM |
| Category | Stainless Steel | Stainless Steel |
Frequently Asked Questions
Is Duplex 2205 the same as UNS S31803?
Duplex 2205 (EN 10088-2) and UNS S31803 (ASTM) are near-equivalent grades with a 95% composition overlap. Both are stainless grades. Minor differences may exist in alloying element ranges. For most applications, they are interchangeable. Always verify against the applicable specification for safety-critical components.
Can I substitute Duplex 2205 with UNS S31803?
In most cases, yes. The chemical composition ranges overlap significantly (95%). However, verify mechanical property requirements for your specific application, as heat treatment practices may differ between EN 10088-2 and ASTM standards.
What is the ASTM equivalent of Duplex 2205?
The ASTM equivalent of Duplex 2205 (1.4462) is UNS S31803 (S31803), specified in ASTM A240.
Other International Equivalents
| Country | Standard | Grade | Match | |
|---|---|---|---|---|
| 🇪🇺 | Europe | EN | X2CrNiMoN22-5-3 | 100% |
| 🇨🇳 | China | GB | 022Cr23Ni5Mo3N | 95% |
| 🇯🇵 | Japan | JIS | SUS329J3L | 90% |
Related Comparisons
Data provided for reference only. Always verify against the applicable specification for critical applications. Source: EN 10088-2, ASTM A240.
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.