Home > Super Duplex Steel Nuts S32750
Super Duplex Steel S32750 Nuts are designed to perform exceptionally well in tough, corrosive industrial settings. Made from high-quality Grade S32750 super duplex alloy, these nuts boast impressive resistance to pitting, crevice corrosion, and chloride stress-corrosion cracking, making them perfect for challenging marine and offshore environments. With their remarkable mechanical strength, durability, and toughness, they ensure secure fastening in high-pressure and high-temperature systems. These nuts find their place in heavy-duty industries like oil and gas, desalination, petrochemical processing, and chemical plants, offering long-lasting reliability and stability for critical equipment and structural assemblies.
Super Duplex Steel S32750 Nuts feature a unique dual-phase ferritic-austenitic structure, consisting of about 25% chromium, 7% nickel, and 4% molybdenum, along with nitrogen to boost strength and corrosion resistance. This well-balanced composition delivers outstanding tensile and yield strength, outshining regular stainless steels. The alloy is highly resistant to chloride-induced corrosion, exhibits high hardness, and offers superior impact toughness. Its microstructure guarantees stability and optimal performance even under high temperatures and pressures, making S32750 nuts the go-to choice for applications that demand durability, exceptional mechanical strength, and protection against harsh industrial conditions.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| 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 % |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 9.2 g/cm3 | 1370 °C (2500 ºF ) | Psi – 1,10,000, MPa – 760 | Psi – 51000, MPa – 350 | 40 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Hastelloy B2 | 2.4617 | N10665 |
Super Duplex Steel S32750 Nuts are widely utilized in industries where components face extreme conditions. In offshore and marine applications, they secure parts in seawater systems, risers, and subsea equipment thanks to their excellent resistance to chlorides. They’re crucial in desalination plants, chemical processing units, and petrochemical facilities where corrosive fluids are prevalent. The oil and gas industry also relies on these nuts for their durability and reliability in demanding environments. Overall, S32750 nuts are essential for ensuring the integrity and longevity of critical systems in various challenging applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
