Home > Duplex Steel > Duplex Steel S31803 Coils
Marsh Nickel Alloys, the leading manufacturer and distributor in Canberra, Australia, offers top-grade Duplex Steel S31803 Coils known for their exceptional strength and corrosion resistance. Our coils are designed to withstand the harshest environments, making them ideal for a wide range of industrial applications, including oil and gas, petrochemical, and marine industries. As a trusted supplier, we ensure that every coil meets international quality standards, providing reliable performance and longevity. ChooseMarsh Nickel Alloys for unparalleled expertise and a commitment to delivering the highest quality Duplex Steel S31803 Coils in the region.
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 % |
The Incoloy 825 washers from Marsh Nickel Alloys are made from a nickel-iron-chromium alloy, enhanced with molybdenum, copper, and titanium. This unique blend provides outstanding resistance to both oxidizing and reducing environments. These washers boast a tensile strength of about 550 MPa and a yield strength of roughly 220 MPa, along with impressive ductility and impact resistance. After undergoing heat treatment for improved performance, they retain their structural integrity across a broad temperature range. These mechanical properties make the Incoloy 825 washers from Marsh Nickel Alloys perfect for use in harsh environments where strength and corrosion resistance are essential.
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Incoloy 825 washers produced by Marsh Nickel Alloys in Canberra are extensively used in industries that require exceptional corrosion resistance and mechanical strength. They are particularly well-suited for applications in chemical processing, marine engineering, pollution control equipment, and acid production systems. Their ability to withstand sulfuric and phosphoric acids, seawater, and chloride-induced stress corrosion cracking makes them ideal for offshore and coastal installations. Additionally, Marsh Nickel Alloys’ washers find applications in heat exchangers, pressure vessels, and nuclear fuel reprocessing.
