Duplex Alloys
Raj Metals supplies Duplex Alloys, duplex stainless steels combining austenitic and ferritic structures for strength and chloride stress corrosion resistance. We provide dependable material selection, cutting support, documentation, and supply coordination for project and maintenance requirements.
Key Features
✓ High strength
✓ Excellent chloride SCC resistance
✓ Good weldability
✓ Cost-effective severe service material
Product Specifications
| Parameter | Details |
|---|---|
| Material Family / Product Form | Duplex Stainless Steel |
| Common Grades | 2205, UNS S31803, UNS S32205 |
| Available Forms | Bars, Sheets, Plates, Pipes, Tubes, Fittings, Fasteners, and custom cut material as applicable |
| Standards | ASTM, ASME, AMS, DIN, EN, JIS, and client-specific equivalent grades |
| Finish Options | Bright, black, pickled, polished, machined, or as per requirement |
| Quality Support | MTC, PMI, dimensional inspection, third-party inspection, and traceability on request |
Duplex Alloys Chemical Composition
| Grade | Cr | Ni | Mo | N | C | Other Elements |
|---|---|---|---|---|---|---|
| Duplex 2205 / S31803 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | 0.030 max | Mn 2.00 max, Si 1.00 max, Fe Balance |
| Duplex S32205 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | 0.030 max | Mn 2.00 max, Si 1.00 max, Fe Balance |
