Incoloy 825 Socket Head Cap Screws

Incoloy 825 Socket Head Cap Screws are high-precision industrial fasteners manufactured by Zeron Fastners, known for their high tensile strength and compact head design, which allows for internal wrenching. Fabricated from the high-nickel alloy Incoloy 825 (UNS N08825), which contains molybdenum, copper, and titanium, these screws offer outstanding resistance to a diverse array of corrosive media. This includes exceptional immunity to stress-corrosion cracking in chloride-bearing environments and superior defense against reducing acids like sulfuric and phosphoric acid. Due to their high strength-to-weight ratio and corrosion resistance, these screws are indispensable for securing machinery components, pressure equipment, and sensitive instrumentation in tight spaces within the chemical processing, aerospace, marine, and oil and gas industries.

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Incoloy 825 Socket Head Cap Screws

Chemical Composition (Incoloy 825 Socket Head Cap Screws)

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 Socket Head Cap Screws)

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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