Specialist in Manufacturing Industrial Steel Fasteners

2507 Super Duplex Steel Fasteners

ASTM A F60 / F51/ F61 / ASME SA F55 / F53 Super Duplex Steel Fasteners, Super Duplex Steel High Tensile Fasteners, SAF 2507 Fasteners , Super duplex UNS S32750 Fastener, Werkstoff 1.4410 Super Duplex Fastener, NACE MR0175 fastener

Super Duplex 2507 fasteners, Zeron 100 Fasteners, S32760 Super Duplex fasteners, Super Duplex Steel ZERON 100 Bolts, Super Duplex 2507 Bolts, Ferralium 255 Fasteners

UNS S32550/S32760 Fasteners, Werkstoff  1.4507/1.4501 Super Duplex Fastener, Super Duplex 2507 Bolts, Super Duplex Steel High Tensile Fasteners, Alloy 2507 Fastener

ASTM F53 UNS S32750 Super Duplex 2507 Fasteners, High Tensile Fasteners, Custom Grade & Size Available At Best Price & Free Sample

Vision Alloys are the leading manufacturer of high integrity Super Duplex 2507 Fasteners (e.g. bolts, set screws, stud-bolts, nuts and washers), meeting clients’ exacting demands for critical applications in hostile environments. Whether for offshore (buoyancy and petrochemical), seawater, pump, valve or nuclear, the demands for an exceptional service and supply is never ending. We believe manufacturing bolting in exotic materials is an art form and it is something we have perfected at Vision Alloys.

Our Super Duplex 2507 Fasteners product range includes Super Duplex 2507 Steel Bolts, Hexagon head bolt, Hexagon head screw, Round head square neck bolt, Hexagon socket head cap screw in full thread and half thread, Hexagon wood screw, Hexagon socket button head screw, Hexagon socket button flange screw, Hexagon socket counter sunk head cap screw in full thread and half thread, square nuts, square weld nuts, hexagon weld nuts, thick nyloc nuts, hexagon flange nuts, threaded rods, dowel screws, Plain / Flat Washer, Spring Washers, Countersunk Washer,Tooth Lock Washer and many more. We provide products as per DIN, ANSI, JIS standards.

Vision Alloys produces Super Duplex 2507 Fasteners in all grades of Super duplex, to customer specification.Alloy 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. If we do not have yourSuper Duplex 2507 Fasteners in stock (Inch or Metric) we can have these manufactured to your specification.

Super Duplex 2507 Fasteners Specification :


Super Duplex Stainless Steel


M02 to M30

3 mm
200 mm




Duplex Stainless Steel, Super Duplex Stainless Steel.
Standard :

ASTM / ASME F60 / F51/ F61 / F55 / F53


UNS S31803, S32205, S32550, S32750, S32760

Type of Fasteners:

Bolts : Bolts stud bolts, hex head bolts, socket hexagon head screw anchor bolts, u-bolts, J bolts, mushroom head square neck bolts, t- head bolts, wing screw, eye bolt, eye bolt, foundation bolts and structural bolts

Washer : Plain washer , plain big & small OD washer , spring lock washer , spring washer heavy duty , tooth washer , star washer , tab washer with one & two tab

Nuts : Hexagon nuts, hexagon coupling nuts, hexagon thin nut, square nut, hexagon castle nuts, self locking nut, hexagon domed cap nuts

Screw : Pan head slotted screws, cheese head slotted screws, countersunk head slotted screws, countersunk raised head slotted screws, pan phillipse head screw, countersunk Phillipse raised head screws, slotted cheese trim head machine screws, socket head allen cap screws, allen countersunk socket head cap screws, socket head shoulder screws, socket head cap screw low head, hexagon socket set screw with flat point, hexagon socket set screws with cone point, hexagon socket set screw with dog point, hexagon socket set screws with dog point, hexagon socket set screws with cup point, imprial socket cap screws.

Other : Threaded rod, as per drawing and customers spec. coating, hot dipped galvanizing, phosphate, Teflon, xylon, zinc, cadmium.


In Form of:

Hex, Square, Round , Threading as per Gauge Etc.

Grade Designation :

Common Name
Related Specification
Alloy 2507
SAF 2507 ®

Super Duplex 2507 Fasteners Composition :

Chemical Composition
Typical compositional ranges for grade Super Duplex 2507 Fasteners

Content (%)
Chromium, Cr
24 – 26
Nickel, Ni
6 – 8
Molybdenum, Mo
3 – 5
Manganese, Mn
1.20 max
Silicon, Si
0.80 max
Copper, Cu
0.50 max
Nitrogen, N
0.24 – 0.32
Phosphorous, P
0.035 max
Carbon, C
0.030 max
Sulfur, S
0.020 max
Iron, Fe

Mechanical Properties
Typical mechanical properties for grade Super Duplex 2507 Fasteners

Tensile Strength
(MPa) min
Yield Strength
0.2% Proof (MPa) min
(% in 50mm)
Rockwell C (HR C)
UNS-S 32750

Physical Properties
Typical physical properties for annealed grade Super Duplex 2507 Fasteners

7.8 g/cm3
0.281 lb/in3
Melting point

Super Duplex 2507 Fasteners Surface Coatings :

  • Hot Dipped Galvanizing
  • Epoxy Coating
  • Electro Polished
  • Passivation
  • Zinc Plating
  • Chrome Plating
  • Mirror Buffed
  • Teflon Coating
  • Oxidized

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