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Tanvir Nickel Alloys stands out as a top-notch manufacturer and supplier of Duplex Steel Screws right in Cairo, Egypt. They specialize in crafting high-quality, corrosion-resistant fasteners that are built for strength, durability, and reliability. These screws are meticulously engineered to meet international standards, ensuring that they provide secure and leak-proof fastening in tough industrial, marine, and offshore settings. You’ll find Tanvir Nickel Alloys’ Duplex Steel Screws widely utilized in the oil & gas, chemical, petrochemical, and desalination sectors, where they face harsh conditions like corrosive media, high pressure, and extreme temperatures, all of which demand fasteners with outstanding mechanical and corrosion-resistant qualities.
Typically, Duplex Steel Screws are crafted from grades like S31803 or S32205, which include around 22% chromium, 5–6% nickel, and 3% molybdenum, with the rest being iron and a touch of nitrogen to boost strength and corrosion resistance. They boast a tensile strength ranging from 620 to 850 MPa, along with excellent yield strength and remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion. These screws also deliver good ductility, toughness, and reliability, even under high-pressure and corrosive conditions, making them ideal for critical fastening tasks.
| Standard | : | ASTM A193, A194 / SA193 / SA194 |
| Dimension | : | ASTM, DIN, BS, GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Bolts Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Screw Size | : | M02 to M33 | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Bolt/ Hex Screw, Square Head Bolt, U Bolt, Carriage Bolt, Eye Bolt, T Bolt/ J Bolt/ L bolt, Flange Bolt, Coach Screw etc. |
At Tanvir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Screws 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.
Duplex Steel Screws find extensive application in the 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 screws offer long-lasting, maintenance-free fastening solutions in high-pressure, high-temperature, and aggressive industrial environments.
