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Santner Nickel Alloys, based in Hamilton, New Zealand, is a trusted manufacturer and supplier of Duplex Steel S31803 wire. Engineered for superior strength, corrosion resistance, and durability, this wire is ideal for demanding industrial applications. Featuring a dual-phase austenitic-ferritic microstructure, S31803 wire provides reliable mechanical performance under high pressure, thermal cycling, and aggressive chemical environments. Manufactured with precision and adhering to international standards, this wire is widely used in chemical processing, petrochemical, offshore, and marine industries. Engineers and fabricators rely on Santner Nickel Alloys’ S31803 wire for safe, long-lasting, and robust welding and fabrication solutions.
Duplex Steel S31803 wire is composed of iron, chromium, nickel, and molybdenum, with small additions of nitrogen and manganese to enhance mechanical strength and corrosion resistance. Its dual-phase microstructure provides high tensile and yield strength, excellent toughness, and superior fatigue resistance. The wire demonstrates outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking, especially in chloride-rich and acidic environments. S31803 wire maintains dimensional stability under thermal cycling and mechanical stress. With good ductility, weldability, and durability, it is ideal for critical industrial applications requiring both mechanical performance and long-term corrosion resistance.
| Specifications | : | ASTM A276 ASME SA276 |
| Dimensions | : | ASTM, ASME |
| Thickness | : | 10mm to 100mm |
| Diameter | : | 100 mm To 6000 mm |
| Specialize | : | Wire, Filler Wire, Coil Wire |
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
| S31803 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.010 max | 21.0 – 23.0 | 4.5- 6.5 | 2.5 – 3.5 | 0.08 – 0.20 |
| S32205 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.010 max | 22.0 – 23.0 | 4.5- 6.5 | 3.0 – 3.5 | 0.14 – 0.20 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
At Olwan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Wire in Amman, Jordan, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Jordan, 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.
Duplex Steel S31803 wire is widely used in chemical processing, petrochemical plants, offshore oil and gas, marine industries, and water treatment facilities due to its exceptional strength and corrosion resistance. It is ideal for welding pipelines, valves, pumps, heat exchangers, pressure vessels, and structural components exposed to chlorides, acids, and high-pressure conditions. S31803 wire is also used in desalination plants and industrial fabrication projects requiring long-lasting, reliable welds. Engineers and fabricators rely on this wire to provide defect-free, durable, and safe welding solutions, ensuring operational efficiency, structural integrity, and reduced maintenance costs in critical industrial applications.
