Duplex and Super Duplex UNS S32750 Couplings

Zeron Fasteners is a reliable source for industrial-grade Duplex and Super Duplex UNS S32750 Couplings. A coupling is a short piece of pipe or forged fitting used to connect two pipe sections, often with threaded ends or socket-weld preparation, ensuring a tight and secure joint. The Super Duplex S32750 material is highly regarded for its dual-phase microstructure, which grants it both superior strength and outstanding resistance to localized corrosion, including stress corrosion cracking and pitting. These robust Duplex Couplings are vital for critical piping connections in the marine, chemical processing, and oil and gas industries where failure due to aggressive media or high pressure is unacceptable.

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UNS S32750 Couplings

Super Duplex UNS S32750 Couplings 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 Couplings 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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