NCF825
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NCF825 is a high-performance nickel-iron-chromium-based alloy, also known as Incoloy 825 or UNS N08825. It features excellent corrosion resistance and high-temperature strength, and is widely used in various fields.
Product name：
German sign number
Material：
2.4858
Warehouse：
Tianjin
Surface treatment：
Pickled/bright/black leather etc.
Category：
Keyword：
NCF825
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Details description
Chemical Composition
Main components include Nickel (Ni) 38.00 - 46.00%, Chromium (Cr) 19.50 - 23.50%, Iron (Fe) ≤22%, and also contain Molybdenum (Mo) 2.50 - 3.50%, Copper (Cu) 1.50 - 3.00%, Titanium (Ti) 0.60 - 1.20%, etc. Carbon (C) content ≤0.05%, Silicon (Si) ≤0.50%, Manganese (Mn) ≤1.00%.
Physical Properties
Density is approximately 8.14 g/cm³, specific heat capacity 444 J/kg・K (20°C), resistivity 112 μΩ・cm, thermal conductivity 10.9 W/m・K, average thermal expansion coefficient at 20 - 100℃ is 13.4×10⁻⁶/°C, melting point is approximately between 1370 - 1400℃.
Mechanical Properties: 0.2% yield strength ≥235 N/mm², tensile strength ≥580 N/mm², elongation ≥30%, hardness ≤207 HB.
Main Characteristics
Excellent corrosion resistance: It has good corrosion resistance to various acids such as sulfuric acid, phosphoric acid, and nitric acid, as well as alkalis such as sodium hydroxide and potassium hydroxide, and acyl chloride solutions. The high nickel content gives it excellent resistance to stress corrosion cracking, while chromium, molybdenum, and copper enhance its resistance to pitting and crevice corrosion in chloride environments.
Good high-temperature performance: It exhibits good mechanical properties at room temperature and at high temperatures up to 550℃, maintaining stability in high-temperature environments and possessing a certain degree of oxidation resistance.
Good processing and welding performance: Its hot and cold processing performance is similar to that of standard austenitic stainless steel. It can be welded using TIG welding, MIG welding, and manual arc welding.
Heat Treatment Methods
Generally, solution heat treatment can be performed at 920 - 1030℃, followed by rapid cooling.
Product Specifications
Common forms include plates, tubes, bars, and wires. Plates and sheets can be used to manufacture various containers and equipment housings; tubes can be used in piping systems; bars can be used to process shaft parts; and wires can be used for welding purposes.
Application Fields
Petrochemical industry: Used to manufacture corrosion-resistant equipment such as heat exchangers, reactors, and pipelines.
Energy sector: Can be used for high-temperature components in nuclear power plants and thermal power plants, such as steam generators, and also for air heat exchangers in petroleum refining.
Ocean engineering: Used to manufacture structural components and seawater pipelines for offshore platforms, capable of resisting seawater corrosion.
Aerospace field: Can be used to manufacture key components such as combustion chambers and turbine blades for aero-engines.
Food processing industry: Because it is non-toxic and harmless, it can be used in equipment and pipelines that directly contact food, ensuring the safety of food production, storage, and transportation.
Qualification certification
Corporate video
Seamless steel pipe manufacturing
3PE anti-corrosion pipe manufacturing
Spiral steel pipe manufacturing
Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
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