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Tanvir Nickel Alloys stands out as a top-notch manufacturer and supplier of Duplex Steel S31803 Nuts right in Cairo, Egypt. They provide high-quality, corrosion-resistant fasteners that are designed for strength, durability, and reliability. These nuts are crafted with precision to meet international standards, ensuring that they deliver secure and leak-proof fastening in tough industrial, marine, and offshore settings. You’ll find Tanvir Nickel Alloys’ Duplex Steel S31803 Nuts widely utilized in the oil & gas, chemical, petrochemical, and desalination sectors, where they face corrosive environments, high pressure, and extreme temperatures, all of which demand fasteners with outstanding mechanical and corrosion-resistant qualities.
|
Material
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Specification
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Standards |
Size
|
Length
|
|
Duplex Steel S31803 |
IS BS ASTM |
ASTM / ASME – A/ SA 479 / 479
|
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 Tanvir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Nuts in Cairo, Egypt, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Egypt, 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.
You’ll find Duplex Steel S31803 Nuts playing a vital role in chemical processing, petrochemical, oil & gas, and offshore industries, where they secure flanges, valves, pumps, and piping systems that are exposed to harsh and corrosive environments. They’re also used in desalination plants, marine installations, and power generation facilities, where durability, corrosion resistance, and mechanical strength are essential. These nuts provide long-lasting, maintenance-free fastening solutions in high-pressure, high-temperature, and aggressive industrial settings.
