Isis Metals, a prominent manufacturer and supplier located in Manila, Philippines, specializes in high-quality Duplex Steel S31803 Bars and Rods. These products are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability. Crafted with cutting-edge technology and premium raw materials, these bars and rods deliver outstanding performance even in the toughest conditions. Isis Metals is committed to upholding international standards, ensuring that their products cater to the diverse needs of various industrial sectors. The Duplex Steel S31803 Bars and Rods are perfect for applications in marine, chemical processing, oil and gas, and power generation industries, where resistance to pitting, stress corrosion, and high pressure is crucial.
Duplex Steel S31803 Bars and Rods are made up of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), and nitrogen (0.08–0.20%), featuring a balanced ferritic-austenitic microstructure. This alloy boasts impressive corrosion resistance, with a high tensile strength of up to 620 MPa, a yield strength of around 450 MPa, and an elongation of 25%. It merges the toughness of austenitic steels with the strength of ferritic grades, offering exceptional resistance to stress corrosion cracking, pitting, and fatigue, even in environments rich in chlorides and under high stress.
| 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.
Duplex Steel S31803 Bars and Rods find extensive applications in industries that demand both high strength and corrosion resistance. They are particularly suited for marine and offshore structures, desalination plants, and chemical processing equipment that face harsh conditions. In the oil and gas industry, these materials are utilized in heat exchangers, pressure vessels, and pipelines. Additionally, the power generation and pulp and paper sectors depend on S31803 for its ability to withstand stress corrosion and erosion. These bars and rods are widely used in construction, architectural, and engineering projects that require durability, strength, and resilience against aggressive industrial environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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