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Santner Nickel Alloys is a reliable manufacturer and supplier of premium Super Duplex Steel Screws in Hamilton, New Zealand. With a strong commitment to quality and innovation, the company provides fastening solutions that deliver exceptional strength and corrosion resistance for tough industrial environments. Their Super Duplex Steel Screws are designed to withstand extreme conditions, making them suitable for both onshore and offshore applications. Santner Nickel Alloys focuses on precision engineering, timely delivery, and customer satisfaction, earning the trust of clients across various sectors. Their dedication to excellence ensures long-lasting performance and dependable fastening solutions for modern engineering needs.
Super Duplex Steel Screws are made from a balanced mix of chromium, nickel, molybdenum, and nitrogen, which together deliver outstanding corrosion resistance and high mechanical strength. The dual-phase microstructure enhances toughness and helps maintain stability under high pressure and elevated temperatures. These screws offer excellent tensile strength, strong impact resistance, and reliable hardness, allowing them to perform well in aggressive and corrosive environments. Their mechanical properties make them an ideal choice for applications where durability, long-term stability, and resistance to stress corrosion cracking are essential.
| 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 Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Screws in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, 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.
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Super Duplex Steel Screws are widely used in industries where durability and corrosion resistance are critical. They are commonly applied in offshore platforms, marine structures, chemical processing units, and desalination plants due to their ability to withstand harsh environments. These screws are also suitable for heat exchangers, pumps, valves, and pressure vessels, offering reliable fastening in high-stress and high-pressure systems. Their strength makes them valuable in oil and gas projects, seawater equipment, and structural assemblies exposed to corrosive conditions. Overall, they provide long-lasting performance, ensuring operational reliability and safety across a wide range of demanding industrial applications.
