Duplex 2205 stainless steel strip
Austenitic-ferritic: twice the mechanical strength of 304 and excellent stress corrosion resistance.
Description
Duplex 2205 (EN 1.4462, X2CrNiMoN22-5-3, UNS S32205) is a stainless steel with a mixed austenitic and ferritic structure, with around 22% chromium, 5% nickel, 3% molybdenum and nitrogen. Its yield strength is about twice that of 304 and 316L, it has excellent resistance to chloride stress corrosion cracking and higher pitting resistance than 316L. It allows thinner gauges for the same strength and is used in the chemical and petrochemical industry, offshore, desalination and structural components exposed to corrosion. 3S supplies Duplex 2205 precision strip in the annealed condition, as strip, narrow strips and spools from 0.05 to 0.70 mm.
Properties
- Mechanical strength about twice that of 304
- Excellent resistance to chloride stress corrosion cracking
- Higher pitting resistance than 316L
- Slightly magnetic due to the ferritic phase
Applications for this grade
Supply
| Parameter | Range | Notes |
|---|---|---|
| Thickness | Annealed 0.05 – 0.70 mm | Other thicknesses on request |
| Width | 3 – 1250 mm | Slitting with sheared or deburred edges |
| Finishes | Annealed 2R / BA • Work‑hardened 2H | Calibrated mechanical properties |
| Formats | Strip • Narrow strips • Spools • Sheets | Sheets cut to size up to 1000 mm |
| Spools | From 15 kg to 1500 kg | ID 50–400 mm • traverse or parallel winding |
Tolerances according to EN ISO 9445 or customer specification. 3.1 certificates on request.
Frequently asked questions
Request a quoteWhy choose Duplex 2205 instead of 316L?
Is Duplex 2205 magnetic?
How can I get a quote?
Tell us the alloy, finish, thickness, width, edge and format (strip/narrow strip/spool) and we will send you a quick quotation.