Duplex and Super Duplex UNS S32750 Screws

Zeron Fasteners is a recognized supplier of industrial-grade Duplex and Super Duplex UNS S32750 Screws. A screw is a versatile threaded fastener typically used to join materials by engaging a pre-formed or self-created internal thread in one component. The Super Duplex S32750 alloy is known for its remarkable strength and superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making these Duplex Screws indispensable in aggressive settings such as offshore platforms, chemical tankers, and pulp and paper plants. Our S32750 screws ensure a secure and long-lasting connection under extreme operating pressures and corrosive conditions.

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UNS S32750 Screws

Super Duplex UNS S32750 Screws Chemical Composition

Element Composition (%)
Carbon (C) 0.03 max
Manganese (Mn) 1.20 max
Silicon (Si) 0.80 max
Phosphorus (P) 0.035 max
Sulfur (S) 0.020 max
Chromium (Cr) 24.0 – 26.0
Nickel (Ni) 6.0 – 8.0
Molybdenum (Mo) 3.0 – 5.0
Nitrogen (N) 0.24 – 0.32
Copper (Cu) 0.50 max
Tungsten (W) 0.50 max

Super Duplex UNS S32750 Screws Mechanical Properties

Property Metric Value
Tensile Strength (min) 800 MPa
Yield Strength 0.2% Offset (min) 550 MPa
Elongation (min) 15 %
Hardness (Max) 30 HRC / 290 HBW
Impact Strength (Charpy V-notch at -50°C) 45 J

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