Anucha Metals stands out as a top manufacturer and supplier of Duplex Steel S31803 Bars and Rods right in the heart of Bangkok, Thailand. They pride themselves on delivering high-quality products that blend impressive strength with remarkable corrosion resistance. The S31803 duplex steel boasts a unique dual-phase structure made up of austenite and ferrite, which translates to exceptional mechanical properties, great resistance to stress corrosion cracking, and stellar performance even in tough, chloride-rich chemical environments. Anucha Metals is committed to providing precise dimensions, a superior surface finish, and consistent mechanical properties, making these bars and rods perfect for demanding industrial and marine applications.
The composition of Duplex Steel S31803 Bars and Rods mainly includes chromium, nickel, and molybdenum, with a touch of nitrogen and manganese to boost strength and corrosion resistance. This alloy is known for its high tensile and yield strength, excellent toughness, and impressive resistance to pitting and crevice corrosion. Thanks to its dual-phase microstructure, it also offers superior fatigue resistance and weldability, making it a go-to choice for critical, high-stress engineering projects.
| Standard | ASTM A276, ASME SA276 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex S31803 | S31803 | 1.4462 |
Yes, Duplex Steel S31803 rods offer excellent corrosion resistance, particularly against pitting, crevice, and stress corrosion. They are ideal for harsh environments, including marine and chemical applications.
Duplex Steel S31803 bars perform well in high-temperature environments, maintaining strength and resistance to oxidation. They are suitable for applications up to approximately 300°C (572°F).
Yes, Duplex Steel S31803 bars can be customized in size and length to meet specific project requirements. Customization ensures flexibility for various industrial applications.
These bars and rods find their way into various applications, including chemical and petrochemical plants, heat exchangers, pressure vessels, pumps, valves, desalination plants, and marine equipment, where both strength and corrosion resistance are non-negotiable. Their blend of mechanical performance, durability, and ability to withstand aggressive environments makes Duplex Steel S31803 Bars and Rods a top pick for industrial uses.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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