Incoloy 825 is a nickel-iron-chromium alloy containing molybdenum, copper, and titanium. Designed to deliver exceptional resistance to various corrosive environments. The nickel content provides sufficient protection against chloride-induced stress corrosion cracking. The combination of nickel with molybdenum and copper also offers outstanding resistance to reducing environments such as those containing sulfuric acid and phosphoric acid. Molybdenum further helps resist pitting and crevice corrosion. The chromium content in this alloy confers resistance to various oxidizing substances including nitric acid, nitrates, and oxidized salts. The titanium addition, when properly heat-treated, stabilizes the alloy and prevents intergranular corrosion sensitivity.
Incoloy825 metallographic structure: Incoloy825 alloy has a stable face-centered cubic structure. The chemical composition and proper heat treatment ensure that the corrosion resistance is not weakened by sensitization.
Incoloy825 corrosion resistance:
1.Incoloy825 is a general engineering alloy with acid and alkali metal corrosion resistance in both oxidizing and reducing environments.
2.The high nickel content makes the alloy have effective resistance to stress corrosion cracking.
3.It is very good in corrosion resistance in various media, such as sulfuric acid, phosphoric acid, nitric acid and organic acids, alkali metals such as sodium hydroxide, potassium hydroxide and hydrochloric acid solution.
4.Incoloy825’s higher overall performance is demonstrated in nuclear combustion dissolvers with a variety of corrosive media, such as sulfuric acid, nitric acid and sodium hydroxide being treated in the same equipment.
Incoloy825 Application scope:
Incoloy825 is widely used in a variety of industrial applications where the operating temperature does not exceed 550℃.
Typical applications are:
1.Heating tubes, containers, baskets and chains used in sulfuric acid washing plants.
2.Marine cooling heat exchanger, Marine product pipeline system, acid gas environment pipeline.
3.Heat exchangers, evaporators, washing and impregnation pipes in phosphoric acid production.
4.Air heat exchanger in petroleum refining food engineering
5.Chemical process.
6.Flame retardant alloys for high pressure oxygen applications.
The density of the alloy is ρ=8.14g/cm³.
