Incoloy 925 is a versatile, aging-hardening nickel-iron-chromium alloy designed to provide a unique combination of high strength and excellent corrosion resistance. Its chemical composition includes molybdenum, copper, titanium, and aluminum, which enhance its performance in harsh environments.
Characteristics of Incoloy 925 alloy:
Chemical composition ：
Nickel (Ni): Provides resistance to chloride stress corrosion cracking (SCC) and enhances overall corrosion resistance.
Molybdenum (Mo): improves resistance to pitting and crevice corrosion, especially in chloride-containing environments.
Copper (Cu): works in conjunction with nickel and molybdenum to enhance resistance to reducing chemicals.
Chromium (Cr): Provides protection in an antioxidant environment.
Titanium (Ti) and aluminum
(Al): The aging hardening reaction is induced in the heat treatment process to improve the strength of the alloy.
Mechanical behavior ：
High strength is achieved by aging hardening heat treatment. Excellent toughness and ductility even in harsh environments. corrosion resistance ：
In an “acidic” environment containing hydrogen sulfide (H₂S), there are stress corrosion cracking (SSC) and stress corrosion cracking (SCC).
Excellent performance in both reducing and oxidizing chemical environments.
Suitable for environments rich in chloride and acidic conditions.
Use of 925 alloy INCOLOY
Due to its excellent performance, INCOLOY 925 alloy is widely used in industries that require corrosion resistance and high stress environments. Main applications include:
Oil and gas industry:
Downhole and surface gas well components (e.g., tubing, valves, hangers, positioning joints, tool joints, and packers). Equipment used in the extraction of sour crude oil and natural gas, where resistance to cracking caused by H₂S is critical.
Offshore and Offshore Engineering:
Pumps, fasteners and other components exposed to seawater and corrosive Marine environments.
Industrial and chemical processing:
High strength piping systems and components for the treatment of corrosive chemicals.
Fasteners and accessories used in harsh environments.
General engineering:
Applications that require high strength, corrosion resistance and durability combined.
INCOLOY 925 alloy is a high-performance material specifically designed for demanding applications in corrosive and high-stress environments. Its unique combination of high strength, corrosion resistance, and resistance to stress corrosion cracking makes it the preferred material for critical components in the oil and gas, marine, and chemical processing industries.
The density of the alloy is ρ=8.08g/cm³.
