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Al Shakru Sheets and Plates is a first-rate manufacturer and supplier of Duplex Steel S31803 Foils based in Dubai, UAE . We take pride in delivering high-quality stainless steel products that are renowned for their remarkable corrosion resistance, strength, and durability. Our Duplex Steel S31803 Foils are made with precision using advanced metallurgical methods and stringent quality control, guaranteeing that they possess a uniform thickness, a smooth surface finish, and reliable performance. These foils are ideal for a wide range of applications across the chemical, marine, and industrial sectors, offering outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. At Al Shakru Sheets and Plates, we serve industries including oil and gas, chemical processing, marine engineering, and industrial manufacturing, supplying reliable and high-performance duplex steel solutions.
Duplex Steel S31803 Foils feature a well-proportioned austenitic (≈50%) and ferritic (≈50%) stainless steel microstructure , comprising chromium (≈22%), nickel (≈5–6%), molybdenum (≈3%), nitrogen, and trace elements . They deliver notable tensile strength (≈650–800 MPa) , yield strength (≈450–550 MPa) , superb ductility , and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking , which makes them well-suited for harsh and challenging 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 supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Shakru Sheets and Plates, headquartered in Dubai, UAE, is a top supplier and stockist of premium metal products, such as Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all provided with outstanding service and customized to fulfill our customers specific needs. With an emphasis on supplying superior products, we serve a broad spectrum of industries, offering dependable solutions for varied applications. Our vast inventory features Recognized for our distinctive finishing methods and dedication to quality. We are committed to guaranteeing customer satisfaction through reliable service and first-rate products.
Duplex Steel S31803 foilprovides many benefits, including outstanding corrosion resistance, particularly in chloride-rich settings. It delivers exceptional strength and durability thanks to its dual-phase microstructure, which merges ferrite and austenite. This improves resistance to stress corrosion cracking, pitting, and crevice corrosion. The material also features high tensile strength, making it well-suited for demanding applications. It is economical compared to pricier alloys while sustaining high performance. In addition, Duplex Steel S31803 foil provides good weldability and formability, making it perfect for industries such as chemical processing, marine, and oil and gas.
Yes,we provide custom sizes for Duplex Steel S31803 Foil to fit particular project needs. Our team at Al Shakru Sheets and Plates is committed to delivering customized solutions for all your requirements. For further information, reach out to us at sales@alshakruplates.ae.
These Duplex Steel S31803 Foils are widely applied in heat exchangers, chemical processing equipment, desalination plants, and marine structures owing to their high strength-to-weight ratio and exceptional corrosion resistance. Within industrial and fabrication applications , they serve in cladding, gaskets, precision-engineered components, and protective layers where durability, reliability, and long-lasting performance are critical. In addition, these foils are employed in offshore, oil and gas, and renewable energy projects , delivering operational efficiency, low maintenance, and a prolonged service life. Their distinctive combination of mechanical strength, corrosion resistance, and flexibility makes Duplex Steel S31803 Foils a preferred option for a wide range of demanding applications.
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