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Aisha Nickel Alloys is a reliable manufacturer and supplier of Duplex Steel S31803 Nuts, proudly based in Muscat, Oman. We cater to a variety of industrial sectors throughout the Middle East and beyond. Our reputation for consistent quality, precision manufacturing, and strict adherence to international standards sets us apart. We provide fastening solutions that you can count on, even in the toughest environments. Our Duplex Steel S31803 Nuts are designed to offer high strength and exceptional corrosion resistance, making them perfect for critical applications. With our modern infrastructure, skilled team, and a strong commitment to customer satisfaction, we ensure timely deliveries and dependable performance for every project.
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Material
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Specification
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Standards |
Size
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Length
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Duplex Steel S31803 |
IS BS ASTM |
ASTM / ASME – A/ SA 479 / 479
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3 mm |
M02 to M30 |
| Cr | N | Ni | C | Mn | Si | P | S | Mo | |
|---|---|---|---|---|---|---|---|---|---|
| S31803 | min: 21.0 max: 23.0 | min: 0.08 max: 0.20 | min: 4.5 max: 6.5 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 2.5 max: 3.5 |
| S32205 | min: 22.0 max: 23.0 | min: 0.14 max: 0.20 | min: 4.5 max: 6.5 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 3.0 max: 3.5 |
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) | Yield Strength 0.2% Proof (MPa) min | Hardness Rockwell C (HR C) |
|---|---|---|---|---|
UNS-S 31803 | 650-880 | 25 | 448 | |
UNS-S 32205 | 621 | 25 | 448 | 21 max |
At Aisha Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Nuts in Muscat, OMAN, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the OMAN, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel S31803 Nuts are a go-to choice in industries where strength and corrosion resistance are non-negotiable. They’re widely used in oil and gas installations, offshore platforms, chemical processing plants, and petrochemical refineries, thanks to their ability to endure harsh conditions. These nuts are also favored in marine engineering, desalination plants, heat exchangers, and piping systems that come into contact with seawater and chlorides. Additionally, they find applications in power generation, construction, and heavy engineering projects, providing secure fastening and long-lasting performance.
