Duplex and Super Duplex UNS S32750 Hex Bolts

The Duplex and Super Duplex UNS S32750 Hex Bolt is a premium, high-strength fastening component widely used in demanding industrial applications. Manufactured from the UNS S32750 alloy (known commercially as Super Duplex 2507), these bolts offer exceptional mechanical properties, significantly exceeding standard stainless steels. This grade is specifically engineered to provide superior resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, making it indispensable in harsh marine, chemical processing, and oil and gas environments. Zeron Fasteners manufactures these bolts to strict standards, typically ASME B18.2.1, ensuring dimensional accuracy and reliability. The hex head design allows for easy tightening and high torque transfer. These bolts are frequently paired with UNS S32750 nuts and washers to create a fully corrosion-resistant connection.

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UNS S32750 Hex Bolts

Duplex and Super Duplex UNS S32750 Hex Bolts

Manufacturing Specifications
Standard ASME B18.2.1, DIN 931, DIN 933, ISO 4014, ISO 4017
Grade Super Duplex UNS S32750 (2507)
Size Range M6 to M100, 1/4 inch to 4 inch
Type Hex Head Bolt, Heavy Hex Bolt
Finish Self-Colour, PTFE Coated
Specifications ASTM A182, ASTM A276

Chemical Composition (UNS S32750)

Element Composition (%)
Carbon (C) Max 0.030
Chromium (Cr) 24.0 to 26.0
Nickel (Ni) 6.00 to 8.00
Molybdenum (Mo) 3.00 to 5.00
Nitrogen (N) 0.24 to 0.32
Manganese (Mn) Max 1.20
Silicon (Si) Max 0.80

Mechanical Properties (UNS S32750)

Property Value
Tensile Strength (Min) 750 MPa Min
Yield Strength (Min) 550 MPa Min
Elongation (Min) 15% Min
Hardness (Max) 310 HBW Max
Impact Energy 45 J Min

Features Product

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