Super Duplex Steel S32750 Fasteners

UNS S32750 Fasteners, DIN 1.4410 Fasteners

We manufacture, supply, and export Super Duplex Steel UNS S32750 Fasteners that are developed to meet national and international raw material standards, ensuring durability and excellent quality. UNS S2750 Super Duplex Fasteners have excellent weldability and can be attached to themselves or other materials using shielded metal arc welding, gas tungsten arc welding, plasma arc welding, flux cored wire, or submerged arc welding. Extended exposure to elevated temperatures might degrade the toughness and corrosion resistance of ASTM A479 Super Duplex Stainless Steel UNS S32750 Hex Bolts.

ASTM A479 Super Duplex UNS S32750 Hex Bolts have good notch ductility in both ambient and sub-zero temperatures (down to minus 50 degrees Celsius). Furthermore, ASTM A479 Super Duplex S32750 Hex Bolts outperform austenitic (300 series) and 22%Cr duplex stainless steels due to their strong resistance to crevice and stress corrosion, as well as enhanced strength. Super Duplex Steel Fasteners (UNS S32750) are used in heat exchangers, pressure vessels and boilers, firefighting systems, desalination plants, high pressure RO-plant and seawater pipes, absorber towers, ducting and piping, and FGD systems in the power industry.

Specification Of Super Duplex S32750 Fasteners

Standard ASTM A479 / A194, ASME SA479 / SA194
Size M 02 to M 33
Length 3 mm to 200 mm
Threads: METRIC, BSW, BSF, UNC, UNF or as required
Standard: DIN, ISO, JIS, GB, IS, BS, ASTM, ANSI – American National Standards Institute
  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • Stud Bolt length are defined in ASME B16.5 standard
  • Hex nuts are defined in ASME B18.2.2
  • ASME B18.5
  • BS en iso 3506

DIN: DIN 931, DIN 933, DIN 934, DIN 970

UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF

ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards
Scope of Manufacturer
  • Up to M36 / 1-1/2” Dia, up to 1100mm lg
  • CNC Machined Fasteners, up to M100 / 4” Dia, up to 1500mm lg
Dia M6 to M64 (1/4" - 2.5")
Length 12 MM - 500 MM (Upto 20 Inch)
IS 1363, 1364
DIN 931, 933
ISO ISO 3506
Form of: Hex, Square, Round, Threading as per Gauge Etc.
Head Drive: Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Test Certificate: Manufacturer Test Certificate as per EN 10204 / 3.1
Finishing: Zinc (yellow, white, blue, black), black oxide, , Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Passivated, Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Mechanically Applied coating and some special one like DACROMET
Production Process M2-M24: Cold Froging, hot forging M24-M100, , machining and CNC for Customized connecting element
Types Nuts, Bolts, Screws, Socket Screw, Sockets, Studs, Screw, Nut, Spring Washers, Hex Set Screw, Socket Hexagon Head Screw, Cap Screw, Wing Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Studs, Anchors, Hex Nut,Marine Anchors, Hexagon Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Anchor Bolt, U- Bolts, J Bolts, T-Head Bolts, Mushroom Head Square Neck Bolts, Eye Bolt, Foundation Bolts, Structural Bolts

Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Super Duplex Steel 2507 1.4410 S32750

Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Fe
S32750 0.030 max 1.20 max 0.80 max 0.035 max 0.020 max 24.00 – 26.00 3.00 – 5.00 6.00 – 8.00 0.24 – 0.32 58.095 min

Mechanical Properties

S32750 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %