Incoloy 825 Pipe Fittings

Incoloy 825 Pipe Fittings are critical components, manufactured by Zeron Fastners, used to change pipe direction (elbows), connect multiple lines (tees, crosses), and change pipe size (reducers). These fittings are fabricated from the high-nickel alloy Incoloy 825 (UNS N08825), a complex alloy containing nickel, iron, chromium, molybdenum, copper, and titanium. This composition provides exceptional resistance to a wide range of corrosive conditions, notably immunity to stress-corrosion cracking in chloride-rich environments and excellent performance against reducing acids like sulfuric and phosphoric acid. Zeron Fastners supplies Incoloy 825 fittings in various types, including seamless Buttweld Fittings (for permanent, high-integrity joints) and forged Socket Weld/Threaded Fittings (for smaller pipe sizes), making them indispensable in the severe service piping systems found in chemical processing, oil and gas, and pollution control industries.

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Incoloy 825 Pipe Fittings

Chemical Composition (Incoloy 825 Pipe Fittings)

Element Composition (%)
Nickel (Ni) 38.0 to 46.0
Chromium (Cr) 19.5 to 23.5
Iron (Fe) Balance
Molybdenum (Mo) 2.5 to 3.5
Copper (Cu) 1.5 to 3.0
Titanium (Ti) 0.6 to 1.2
Carbon (C) 0.05 max

Mechanical Properties (Incoloy 825 Pipe Fittings)

Property Value (Solution Annealed)
Tensile Strength, min (Alloy) 585 MPa (85 ksi)
Yield Strength (0.2% Offset), min (Alloy) 240 MPa (35 ksi)
Elongation, min 30%
Hardness (Brinell), max 170 HB (95 HRB)
Modulus of Elasticity (E) 195 GPa (28,300 ksi)

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