incoloy825 (UNS N08825) specific parameters
Incoloy825 nickel alloy plate is available in thicknesses ranging from 0.1875 inches (4.8 mm) to 2.00 inches (50.8 mm) and can be used in air pollution control, chemical and petrochemical, food processing, nuclear energy, offshore oil and gas production, ore processing, refining, Steel pickling and waste treatment industry.
Incoloy825 alloy is a NI-FE-MO-CU corrosion-resistant alloy stabilized with Ti. The alloy has effective resistance to uniform corrosion and localized corrosion, and has good performance, so it is widely used in chemistry, energy, and hydrometallurgy. Application. In addition, the alloy has good toughness and performs well in the atmosphere. However, it should be noted that very shallow pitting corrosion will occur in humid atmosphere. This alloy is also resistant to freshwater corrosion and can be used in flowing seawater under all conditions. However, Certain spots will appear in still seawater or under polluted conditions, so everyone should pay attention to this when producing products. The corrosion resistance of the alloy is very good in various media, such as sulfuric acid, phosphoric acid, and hydrochloric acid. , nitric acid, sulfurous acid, organic acids and compounds. Alkali metals such as sodium hydroxide, potassium hydroxide and hydrochloric acid solutions. Of particular note is the poor corrosion resistance in hydrofluoric acid.
Incoloy825 alloy chemical composition carbon C: 0.05, chromium Cr: 19.5~23.5, nickel Ni: 38~46, aluminum AL: -, titanium Ti-, iron Fe balance, manganese Mn1.00, silicon Si0.5, phosphorus P0.040 , Sulfur S0.03, copper Cu1.5~3.0, tungsten W-, boron B-, molybdenum Mo2.5~3.0, nitrogen N0.6~1.2.
Corresponding grades of Incoloy825: China: NS1402, NS142, 0Cr21Ni42Mo3Cu2Ti, United States: ASTMA: incoloy825, SAE: No8065, United States UNS: No8825, Japanese JIS: ncf825, German DIN: 2.4858, European EN: NiCr21Mo, French NF:, British BS: nife30cr21no3 , Rui SS14:. NTR:NA2,NA1641.
Incoloy825 alloy cannot be formed below 650 degrees. The alloy is suitable for stable heat treatment at 940 degrees, and intermediate annealing is preferably higher than 1050 degrees. Welding uses nickel-based wire such as: 00cr22ni61mo9NB.
Incoloy825 has a wide range of corrosion resistance and is commonly used in the chemical processing industry, hot seawater and hydrometallurgy. It is mainly used in heat exchangers, pipes, valves and water pumps that handle hot sulfuric acid, chloride-containing solutions, sulfurous acid and other environments. etc., it is also widely used in the fields of wood pulp extractors and deep source gas wells in the paper industry.
Alloy Properties
1. Resistance to stress corrosion cracking
2. Resistance to pitting corrosion and crevice corrosion
3. Anti-oxidation and non-oxidizing hot acid properties
4. It has good mechanical properties at room temperature and high temperatures up to 550°C.
5. Certification for pressure vessels with manufacturing temperatures up to 450°C.
Incoloy825 alloy (UNS N08825) is an austenitic nickel iron chromium alloy with added molybdenum, copper and titanium. It has been developed to provide excellent corrosion resistance in oxidizing and reducing environments. The alloy is resistant to chloride stress corrosion cracking and pitting corrosion. The addition of titanium stabilizes Alloy 825 against sensitivity under welding conditions, making the alloy resistant to grain boundary erosion after exposure to temperature ranges that would sensitize unstabilized stainless steel. The manufacture of Alloy 825 is typical of nickel-based alloys, and the material is easily formed and welded by various techniques.
incoloy825 General Properties
Incoloy825 alloy (UNS N08825) is an austenitic nickel iron chromium alloy with added molybdenum, copper and titanium. It has been developed to provide excellent resistance to a wide range of corrosive environments (oxidizing and reducing).
The nickel content of Alloy 825 makes it resistant to chloride stress corrosion cracking compared to conventional austenitic stainless steels, and combined with molybdenum and copper, provides significantly improved corrosion resistance in reducing environments. The chromium and molybdenum content in 825 alloy resists chloride ion pitting corrosion and resists a variety of oxidizing atmospheres. The addition of titanium makes the alloy non-sensitizing in the welded state. This stabilization allows Alloy 825 to resist intergranular attack after exposure to temperature ranges that would normally sensitize unstabilized stainless steels.
Incoloy825 alloy provides corrosion resistance in a variety of process environments including sulfuric acid, sulfurous acid, phosphoric acid, nitric acid, hydrofluoric acid and organic acids, as well as alkali (such as sodium or potassium hydroxide) and acidic chloride solutions.
The manufacturing of incoloy825 alloy is typical of nickel-based alloys, and its materials are easy to form and weld by various techniques.
