Super Duplex UNS S32750

Super Duplex UNS S32750 is well suited to conditions that require both high strength and excellent resistance to corrosion. UNS S32750 contains high molybdenum, chromium and nitrogen which help towards the resistance of crevice corrosion and pitting in seawater, as well as other chloridic environments. This material also shows good resistance to general corrosion in acids, erosion corrosion and corrosion fatigue.

West Special Fasteners are manufacturers of Super Duplex UNS S32750 Fasteners.

UNS S32750 Fasteners such as Socket Capscrews, Washers, Nuts, Bolts, Studs, Studbolts, Socket Setscrews, Socket Countersunk screws & machined components to drawings and hot forged items can all be produced at West Special Fasteners Limited.

We can also supply round bar in Super Duplex UNS S32750.

Super Duplex UNS S32750 is used in various industries, including marine industry and ship building, chemical plants, pulp & paper processing, water desalinisation plants, petrochemical and pollution control. UNS S32750 products in these industries would include hot water tanks, heat exchangers, water heaters and compressor & pump components.

West Special Fasteners specialises in exotic metals and have supplied major UK companies with Super Duplex UNS S32750 bolts, nuts etc.

We look forward to helping with your Super Duplex UNS S32750 requirements and would welcome any enquiries by telephone on + 44 (0)1246 291111 or email

Typical Chemical Analysis

C Si Mn P S Cr Ni Mo
0.030 0.20-0.80 1.200 0.035 0.020 24.0-26.0 6.00-8.00 3.00-5.00
W N2 Nb Ti Co Cu Al B
0.24-0.32 0.500
V Fe Mg Ta Nb + Ta Ca O2 Bi
Se Sn Zn Pb

Typical Mechanical Properties

Tensile Strength: 800N/mm² Impacts:
0.2% Proof Stress: 550N/mm²
Elongation: 15% Stress Rupture:
Reduction of Area:
Hardness: 310 HBN
Other Remarks: