Incoloy 825 Hex Nuts

Incoloy 825 Hex Nuts are vital components, manufactured by Zeron Fastners, used in conjunction with corresponding bolts and studs to create secure, non-permanent joints. These nuts are made from the high-performance superalloy Incoloy 825 (UNS N08825), a nickel-iron-chromium material enhanced with molybdenum, copper, and titanium. This specific composition delivers superior resistance to a wide range of corrosive environments, including exceptional protection against stress-corrosion cracking in chloride-rich solutions and excellent defense against reducing acids like sulfuric and phosphoric acid. The hexagonal shape facilitates easy engagement with standard tools, making these nuts the go-to choice for dependable flange and equipment bolting in severely corrosive service areas like chemical processing, marine environments, and oil and gas industries.

Related Products

Incoloy 825 Nuts

Chemical Composition (Incoloy 825 Hex Nuts)

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 Hex Nuts)

Property Value (Solution Annealed)
Tensile Strength, min (Alloy) 585 MPa (85 ksi)
Yield Strength (0.2% Offset), min (Alloy) 240 MPa (35 ksi)
Hardness (Brinell), max 170 HB
Modulus of Elasticity (E) 195 GPa (28,300 ksi)
Proof Load Stress Must sustain specified bolt stress

Features Product