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Santner Nickel Alloys is a dependable manufacturer and supplier in Hamilton, New Zealand, offering high-quality Super Duplex Steel Nuts designed for demanding industrial environments. Known for their exceptional strength and resistance to corrosion, these nuts are crafted using premium raw materials and advanced manufacturing techniques. Santner Nickel Alloys ensures consistent quality, precision, and durability in every product, making them ideal for critical applications. With a strong focus on customer satisfaction and adherence to global standards, the company serves key sectors such as marine, oil and gas, petrochemical, desalination, and construction, earning a reputation for reliable and long-lasting fastening solutions.
Super Duplex Steel Nuts are made from a balanced combination of chromium, nickel, molybdenum, and nitrogen, giving them excellent corrosion resistance and high mechanical strength. Their duplex microstructure provides superior tensile and yield strength while maintaining good toughness and durability. These nuts offer outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich and high-pressure environments. With strong hardness, structural stability, and excellent performance under varying temperatures, Super Duplex Steel Nuts deliver long-term reliability and durability in demanding industrial conditions.
| Standard | : | ASTM A193 / A479, ASME SA193 / A479 |
| Dimension | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Nut Size | : | M02 to M33 | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Nut, Heavy Hex Nut, Lock Nut, Nylock Nut, Weld Nut, Dome Nut, Flange Nut, Square Nut, Eye Nut etc. |
| C | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|
| 0.020 | 25 | 7 | 4.0 | .27 | S=0.001 |
| Ultimate Tensile Strength, ksi | 116 min. |
|---|---|
| 0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
| 0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
| Elongation in 2 inches, % | 15 min. |
| Hardness Rockwell C | 32 max. |
| Impact Energy, ft.-lbs. | 74 min. |
At Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Nuts 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.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Nuts are widely used in industries where strength, durability, and corrosion resistance are critical. They are ideal for marine engineering, offshore platforms, and seawater systems due to their exceptional resistance to chloride-induced corrosion. In the oil and gas sector, they are used in pipelines, subsea equipment, heat exchangers, and pressure vessels. Chemical processing plants rely on these nuts for equipment exposed to harsh chemicals and extreme temperatures. They are also used in desalination plants, structural assemblies, and heavy-duty machinery. Their dependable performance makes them suitable for ensuring safety, stability, and longevity in challenging industrial environments.
