Duplex and Super Duplex UNS S32760 Tees

The Duplex and Super Duplex UNS S32760 Tee is a critical forging product used in piping systems to either combine or divide fluid flow from the main pipe run. Available primarily as Equal Tees (where the branch diameter is the same as the run) and Reducing Tees (where the branch is smaller), these fittings must be robust to handle the increased stress and turbulence at the junction. Manufactured from the premium Super Duplex UNS S32760 alloy (also known as F55 or Zeron 100), these tees are designed for the most aggressive service conditions. The material's balanced microstructure and highly alloyed nature provide both high mechanical strength and an exceptionally high Pitting Resistance Equivalent Number, offering superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC). Zeron Fasteners manufactures and supplies these premium pipe fittings in compliance with stringent standards such as ASME B16.9 and ASTM A815, making them essential components for pipelines in offshore oil and gas, chemical processing, and power generation where system integrity is non-negotiable.

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UNS S32760 Tees

Chemical Composition (UNS S32760 / F55)

Element Composition (%)
Chromium (Cr) 24.0 to 26.0
Nickel (Ni) 6.0 to 8.0
Molybdenum (Mo) 3.0 to 4.0
Tungsten (W) 0.5 to 1.0
Copper (Cu) 0.5 to 1.0
Nitrogen (N) 0.20 to 0.30
Carbon (C) Max 0.030
Silicon (Si) Max 1.00
Manganese (Mn) Max 1.00
Phosphorus (P) Max 0.035
Sulfur (S) Max 0.010

Mechanical Properties (UNS S32760 / F55)

Property Minimum Value
Ultimate Tensile Strength 750 MPa Min
Yield Strength (0.2% Proof) 550 MPa Min
Elongation (A) 15 % Min
Hardness (HBW Max) 270
Impact Energy Charpy V-Notch 45 J at -50°C Min
Pitting Resistance Equivalent Number (PREN) 40 Min

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