Duplex and Super Duplex UNS S32760 Elbows

The Duplex and Super Duplex UNS S32760 Elbow is a critical forging product used in pipeline construction to smoothly change the direction of flow, typically at 90-degree or 45-degree angles. Manufactured from the elite Super Duplex UNS S32760 alloy (also known as F55 or Zeron 100), these elbows are designed for the most aggressive service conditions. The alloy's unique composition, including additions of Tungsten and Copper, ensures an exceptionally high Pitting Resistance Equivalent Number, providing superior resistance to pitting, crevice corrosion, and chloride stress corrosion cracking (SCC). This dual-phase microstructure imparts both high strength (reducing wall thickness requirements) and excellent durability. Zeron Fasteners manufactures and supplies these premium pipe fittings in compliance with stringent standards such as ASME B16.9 and ASTM A815, making them the preferred choice for critical infrastructure in chemical processing, offshore oil and gas, and desalination plants.

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UNS S32760 Elbows

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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