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Smith Fittings is a top-notch manufacturer and supplier of **Duplex Steel S31803 Foils** located in **Canberra, Australia**. We take pride in offering high-quality stainless steel products that are well-known for their impressive corrosion resistance, strength, and durability. Our Duplex Steel S31803 Foils are crafted with precision using cutting-edge metallurgical techniques and rigorous quality control, ensuring they have a uniform thickness, a smooth surface finish, and consistent performance. These foils are perfect for a variety of applications in the chemical, marine, and industrial sectors, providing exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. At Smith Fittings, we cater to industries such as oil and gas, chemical processing, marine engineering, and industrial manufacturing, delivering dependable and high-performance duplex steel solutions.
**Duplex Steel S31803 Foils** boast a well-balanced **austenitic (≈50%) and ferritic (≈50%) stainless steel microstructure**, which includes **chromium (≈22%), nickel (≈5–6%), molybdenum (≈3%), nitrogen, and trace elements**. They showcase impressive **tensile strength (≈650–800 MPa)**, **yield strength (≈450–550 MPa)**, excellent **ductility**, and remarkable **resistance to pitting, crevice corrosion, and stress corrosion cracking**, making them ideal for tough and demanding environments.
ASTM A240, ASME SA240
0.02mm – 5.0mm
3.2mm – 1500mm
NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA.
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 |
| 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 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Josh Sheets and Plates based in Canberra, Australia, 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.
Duplex Steel S31803 foil offers numerous advantages, including excellent corrosion resistance, especially in chloride-rich environments. It provides superior strength and durability due to its dual-phase microstructure, which combines ferrite and austenite. This enhances resistance to stress corrosion cracking, pitting, and crevice corrosion. The material also boasts high tensile strength, making it suitable for demanding applications. It is cost-effective compared to more expensive alloys while maintaining high performance. Furthermore, Duplex Steel S31803 foil offers good weldability and formability, making it ideal for industries such as chemical processing, marine, and oil and gas.
Yes, we offer custom sizes for Duplex Steel S31803 Foil to meet specific project needs. Our team at Josh Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
These **Duplex Steel S31803 Foils** are commonly utilized in **heat exchangers, chemical processing equipment, desalination plants, and marine structures** thanks to their high strength-to-weight ratio and outstanding corrosion resistance. In **industrial and fabrication applications**, they are used for **cladding, gaskets, precision-engineered components, and protective layers** where durability, reliability, and long-lasting performance are essential. Moreover, these foils find their place in **offshore, oil and gas, and renewable energy projects**, offering operational efficiency, low maintenance, and an extended service life. Their unique blend of **mechanical strength, corrosion resistance, and flexibility** makes Duplex Steel S31803 Foils a top choice for various demanding applications.
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