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Wiraphan Sheets and Plates, a reputable manufacturer and supplier based in Bangkok, Thailand, is well-known for its high-quality Duplex Steel S31803 Coils and Slitting Coils. The company focuses on providing top-notch duplex stainless steel products that adhere to international standards for corrosion resistance, mechanical strength, and durability. S31803 duplex steel uniquely blends the characteristics of austenitic and ferritic stainless steels, delivering remarkable toughness, impressive tensile strength, and exceptional resistance to stress corrosion cracking. Wiraphan offers these coils in a variety of widths and thicknesses, ensuring precision-cut, ready-to-use materials for industries such as chemical, petrochemical, marine, and oil and gas.
Duplex Steel S31803 Coils/Slitting Coils are made up of iron, chromium (21–23%), nickel (4–6%), molybdenum (2–3%), nitrogen (0.08–0.20%), along with trace amounts of manganese and silicon. This specific alloy composition grants outstanding resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking, all while maintaining high tensile strength and toughness. In terms of mechanical properties, these coils boast a tensile strength ranging from 620 to 880 MPa, a yield strength of about 450 to 650 MPa, and good elongation, ensuring dependable performance during forming, rolling, and fabrication processes. Their blend of corrosion resistance, mechanical strength, and flexibility makes them perfect for critical industrial applications.
| Specifications | ASTM A240 / ASME SA240 |
| Dimensions | ASTM, ASME, and API |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, hairline, sand blast, Brush, etching, Hot rolled coil (HR), Cold rolled coil (CR), SATIN (Met with Plastic Coated) etc |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Form | Coils, Foils, Rolls, Plain Coil, Shim Coil, Strip |
| 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 % |
| Grades | EN | UNS | ISO |
| S31803 | 1.4462 | S31803 | 4462-318-03-I |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Wiraphan Sheets and Plates based in Bangkok, Thailand, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Stocked Sizes | |
|---|---|
Size (in inches) | Size (in mm) |
.125″ | 3.18mm |
.134″ | 3.40mm |
.156″ | 3.96mm |
.187″ | 4.75mm |
.250″ | 6.35mm |
.312″ | 7.92mm |
.375″ | 9.53mm |
.500″ | 12.7mm |
.625″ | 15.9mm |
.750″ | 19.1mm |
.875″ | 22.2mm |
1″ | 25.4mm |
1.125″ | 28.6mm |
1.250″ | 31.8mm |
1.500″ | 38.1mm |
1.750″ | 44.5mm |
2″ | 50.8mm |
2.500″ | 63.5mm |
3″ | 76.2mm |
Duplex Steel S31803 Coils/Slitting Coils find extensive use in chemical and petrochemical plants, offshore platforms, marine equipment, heat exchangers, pressure vessels, and piping systems that are subjected to harsh and corrosive environments. Their remarkable corrosion resistance, toughness, and durability make them ideal for precision fabrication, welded assemblies, and structural applications. S31803 Coils/Slitting Coils offer a reliable, long-lasting solution for industries that demand high-performance, corrosion-resistant, and robust duplex stainless steel in coil form for essential engineering projects.
Yes, we offer custom sizes for Duplex Steel S31803 Coil/Slitting Coil to meet specific project needs. Our team at Wiraphan Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@wiraphansheetsplates.com.
Duplex Steel S31803 coils/slitting coils are widely used in high-strength applications and require corrosion resistance. Because of their strong chemical resistance, they are commonly used in chemical equipment, such as heat exchangers, pressure vessels, and tanks In the oil and gas industry, they are consumed applications in pipelines, flow lines, and subsea systems. Excellent corrosion resistance makes them ideal for marine applications such as shipbuilding and desalination plants. In addition, it is used for essential raw materials in the pulp and paper industries, power generation, and food processing industries.
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Bangkok, Thailand
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