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Duplex Steel S31803 bars are robust stainless steel products known for their unique dual-phase microstructure, which combines austenite and ferrite. This blend results in an impressive mix of mechanical strength and corrosion resistance. Thanks to this balanced structure, these bars boast exceptional toughness, high yield strength, and strong resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. They find their place in demanding sectors like chemical processing, petrochemicals, oil and gas, marine, and power generation, where both strength and resistance to corrosion are essential.
| Standards | ASTM/ASME SA276/A479 |
|---|---|
| Werkstoff Nr | 1.4462 |
| Range | 10 mm To 350 mm Dia |
| Finish | Bright, Black & Polish |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc. |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| UNS S32205 | Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
| min | 4.5 | 22.0 | 3.0 | – | – | – | 0.14 | – | – | – |
| max | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Bars in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
These bars are frequently utilized in the manufacturing of pumps, valves, fasteners, structural components, pipelines, and pressure vessels. Their combination of high mechanical strength, corrosion resistance, and durability guarantees a long service life, dependable performance, and minimal maintenance in harsh industrial and marine settings. Duplex Steel S31803 bars are truly ideal for both structural and process-critical applications that demand high-performance stainless steel.
