Home > Duplex Steel > Duplex Steel S31803 Coils
Xuan Nickel Alloys, a trusted manufacturer and supplier based in Da Nang, Vietnam, specializes in high-quality Duplex Steel S31803 Coils that are engineered for exceptional strength, corrosion resistance, and durability. Crafted with precision and in line with international standards, these coils offer remarkable protection against pitting, crevice corrosion, and stress corrosion cracking, particularly in environments rich in chlorides. They come in various sizes, thicknesses, and finishes, making them ideal for fabrication, forming, and welding tasks. Industries such as chemical processing, oil and gas, marine, desalination, and power generation rely on these coils for their long-lasting and dependable performance.
Standard ASTM A240 / ASME SA240
Range 5mm To 150mm
Width 1000mm / 1219mm /1250mm / 1500mm / 2000mm
Length 2000 mm / 2440 mm / 2500 mm / 3000 mm / 6000 mm.
Surface Finishing Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) 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 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| S31803 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
At Xuan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Coils in Da Nang, Vietnam, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Vietnam, 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 Coils find extensive use in industries that require robust, durable, and corrosion-resistant materials. In chemical and petrochemical facilities, they are utilized in heat exchangers, pressure vessels, and process piping systems. The oil and gas sector employs them in offshore platforms, pipelines, and refineries, where resistance to seawater and sour gas is crucial. Marine and desalination plants incorporate Duplex Steel S31803 Coils in pumps, valves, and structural applications that face chloride-rich environments. Additionally, power generation industries depend on them for turbines, boilers, and high-temperature systems, ensuring safe and efficient operations even under extreme conditions.
