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Boikanyo Sheets and Plates, located in Cape Town, South Africa, stands out as a premier manufacturer and supplier of top-notch Duplex Steel products, including the highly regarded Duplex Steel S31803 Coils. These coils are celebrated for their remarkable blend of strength and resistance to corrosion, and they are meticulously produced to adhere to stringent industry standards. Offered in a variety of thicknesses and widths, Boikanyo’s Duplex Steel S31803 Coils deliver exceptional durability, formability, and resistance to stress corrosion cracking. Their impressive performance in challenging chemical and marine environments makes them the go-to choice for applications that require long-lasting reliability and robust mechanical properties.
The composition of Duplex Steel S31803 Coils features roughly equal parts of austenite and ferrite phases, with essential alloying elements such as 22% chromium, 5-6% nickel, 3% molybdenum, and nitrogen. This well-balanced microstructure results in high tensile strengths typically ranging from 620 to 880 MPa, along with excellent toughness and ductility. The alloy showcases outstanding resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, while also maintaining good weldability and thermal stability. These characteristics make S31803 a versatile material, perfect for demanding fabrication processes.
| 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.
Boikanyo Sheets and Plates based in Cape Town, South Africa, 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 coil/slitting coils offer a unique combination of advantages, including high strength and good corrosion resistance, especially against pitting, crack corrosion and stress corrosion cracking Their dual phase design ensures good mechanical properties, e.g higher tensile and yield strengths compared to austenitic steels reduce them in good weldability and formability, and provide they are suitable for complex applications. Furthermore, their high fatigue and corrosion resistance makes them durable in harsh environments, such as chemical manufacturing, marine, and oil and gas industries, and allows them to use time long and reliable.
Yes, we offer custom sizes for Duplex Steel S31803 Coil/Slitting Coil to meet specific project needs. Our team at Boikanyo Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
Duplex Steel S31803 Coils are widely utilized in chemical processing plants, the oil and gas sector, and marine applications where resistance to chloride-induced corrosion is essential. They are particularly suited for heat exchangers, pressure vessels, piping systems, and storage tanks that are exposed to harsh environments. Furthermore, these coils are also employed in desalination plants, pulp and paper manufacturing, and wastewater treatment facilities. Boikanyo’s Duplex Steel S31803 Coils offer a durable and cost-effective solution for industries that require strong, corrosion-resistant materials in coil form for versatile fabrication.
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