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Elvis Nickel Alloys, based in Houston, USA, stands out as a top manufacturer and supplier of Super Duplex Steel Screws, crafted specifically for situations that require remarkable strength and resistance to corrosion. These screws are made from premium materials like UNS S32750 (SAF 2507) and UNS S32760 (Zeron 100), making them perfect for tough environments where they face constant exposure to chlorides, chemicals, and high pressure. Thanks to their strong ferritic-austenitic microstructure, Super Duplex Steel Screws provide excellent protection against pitting, crevice corrosion, and stress corrosion cracking. They meet global standards such as ASTM A479, ASTM A193, and DIN 933, ensuring secure and long-lasting installations.
Super Duplex Steel Screws boast a well-balanced chemical makeup of 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and 0.2–0.3% nitrogen, along with trace amounts of manganese, copper, and silicon. These alloying elements contribute to impressive tensile strength (up to 800 MPa), yield strength of at least 550 MPa, and elongation of 25% or more, guaranteeing top-notch performance under both static and dynamic loads. With a high PREN (>40), they offer exceptional protection against localized corrosion in aggressive settings like seawater, chemical plants, and desalination facilities.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
| Material Product | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) |
| Super Duplex Steel Screw | 760 | 550 | 15 | 32 Max |
At Elvis Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Screws in Texas, USA, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the USA, 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.
Super duplex steel screws are widely used in applications requiring high corrosion resistance and strength, such as marine, medical systems, and oil and gas industry Ideal for fastening applications in offshore platforms, heat exchangers and desalination plants, where exposure to chlorides and hard surfaces are common Besides, these screws are used in pressure vessels, tanks and pipelines because of their ability to withstand high pressures and extreme temperatures , ensuring long-term reliability and critical safety.
