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Super Duplex UNS S32750 UNS S32760 Grade Nuts and Bolts 

Super Duplex Hex Bolts:

Size M10 – M65
Quantity Per Pack 25-30 kg
Packing Type BOX
Surface Treatment PASSIVATION
Grade UNS S32750
Surface Finishing BUFFED
Finishing Bright 
Standard Dimensions: DIN 931, DIN 933
Material UNS S32750 UNS S32760
Brand AF

 

 

DIN 931 Click Here

Super Duplex Hex Nuts:

Size M10 – M65
Quantity Per Pack 25-30 kg
Packing Type BOX
Surface Treatment PASSIVATION
Grade UNS 32750 UNS 32760
Surface Finishing BUFFED
Finishing Bright 
Condition New
Standard Dimensions: DIN 933
Brand AF

Chemical & Mechanical Properties:

 

UNS

Super Duplex Industry Specifications

Chemical Composition

Min.Tensile
(KSI)

Min.Yield
(KSI)

Elongation
%

UNS S32750

ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988

C 0.030 max
Cr 24.0-26.0

Cu 0.5 max

Mn 1.20 max

Mo 3.0-5.0

N 0.24-0.32

Ni 6.0-8.0

P 0.035 max

S 0.020 max

Si 0.8 max

116

80

15

UNS S32760

ASTM A182 F55, A240, A276, A314, A473, A479, A789, A790, A815, A928, A988

C 0.03 max
Cr 24.0-26.0

Cu 0.5-1.0

Mn 1.0 max

Mo 3.0-4.0

N 0.2-0.3

Ni 6.0-8.0

P 0.03 max

S 0.01 max

Si 1.0 max

W 0.5-1.0

 109

80

25

 

AF Aanuraj Threaded Nuts and Bolts in Super Duplex alloy stainless steel are designed to feature high strength, resistance to pitting, stress corrosion cracking, erosion corrosion and corrosion fatigue, crevice corrosion and strong weldability.

SUPER DUPLEX FASTENERS APPLICATIONS

AF Aanuraj Threaded Nuts and Bolts in Super Duplex alloy stainless steel are used in Oil and gas industry equipment, Offshore platforms, heat exchangers, process and service water systems, fire-fighting systems, injection and ballast water systems, Chemical Plants & Equipmenst,Chemical process industries, heat exchangers, vessels, and piping, Desalination plants, high pressure RO plants and seawater piping, Mechanical and structural components, high strength, corrosion-resistant parts, Power industry FGD systems, utility and industrial scrubber systems, absorber towers, ducting, and piping.

SUPER DUPLEX CORROSION RESISTANCE

AF Aanuraj Threaded Nuts and Bolts in Super Duplex alloy stainless steel are having high chromium and molybdenum content of Super Duplex makes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid. Super Duplex also provides excellent resistance to inorganic acids, especially those containing chlorides.

The pitting Resistance equivalent of Super Duplex, calculated by PREN = Cr + 3.3Mo + 16N, will exceed 40 in most material forms.

Super Duplex Fasteners

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