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Boikanyo Sheets and Plates, located in Cape Town, South Africa, stands out as a reliable manufacturer and supplier of top-notch specialty metals, including Duplex Steel S31803 Foil. Renowned for its remarkable strength and resistance to corrosion, this foil is meticulously produced to meet the rigorous standards of various industries. Offered in thin, flexible sheets, Boikanyo’s Duplex Steel S31803 Foil boasts exceptional durability, formability, and resistance to stress corrosion cracking and pitting. Its outstanding performance makes it a perfect choice for applications that demand lightweight, corrosion-resistant materials, especially in harsh chemical and marine settings.
The Duplex Steel S31803 Foil features a well-balanced microstructure, consisting of about 50% austenite and 50% ferrite, with essential alloying elements like 22% chromium, 5-6% nickel, 3% molybdenum, and nitrogen. This unique composition results in high tensile strength ranging from 620 to 880 MPa, along with excellent toughness and ductility. The foil is particularly resistant to chloride-induced corrosion and stress corrosion cracking, while also offering good weldability and thermal stability, making it suitable for intricate and precise fabrication processes.
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.
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.
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 Boikanyo Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
You’ll find Duplex Steel S31803 Foil widely utilized in the chemical processing, aerospace, and marine industries for applications such as gasket materials, sealing solutions, heat exchangers, and corrosion-resistant liners. It’s the go-to choice for environments that require lightweight, flexible, and durable metal foils capable of withstanding aggressive chemical exposure and mechanical stress. Additionally, this foil is also employed in power generation, pharmaceutical manufacturing, and pollution control equipment. Boikanyo’s Duplex Steel S31803 Foil provides a dependable, high-performance solution tailored to meet specialized industrial demands.
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