Inconel 625 does not usually require heat treatment to improve its corrosion resistance, but its mechanical properties can be optimized through solution treatment and aging treatment.
The main chemical components of Inconel 625 include:
Nickel (Ni): about 58-63%
Chromium (Cr): about 19-23%
Molybdenum (Mo): about 8-10%
Iron (Fe): about 2.5-4%
Niobium (Nb): about 3.15-4.15%
Cobalt (Co): can contain up to 2.5%
Carbon (C): ≤0.10%
Manganese (Mn): ≤1.0%
Silicon (Si): ≤0.5%
Phosphorus (P): ≤0.015%
Sulfur (S): ≤0.015%
Physical properties
Density: about 8.4 g/cm³
Melting point: about 1300-1350°C
Mechanical properties
The mechanical properties of Inconel 625 include:
Tensile strength: about 690-1000 MPa
Yield strength: about 310-550 MPa
Elongation: about 30-40%
Hardness: about HB 200-300
Corrosion resistance
Inconel 625 performs well in a variety of corrosive media, especially in chloride-containing environments. It has good corrosion resistance to oxidizing acids, reducing acids and mixed acids, including sulfuric acid, hydrochloric acid, phosphoric acid and organic acids.
Inconel 625 is widely used in the following fields:
Used in the manufacture of chemical equipment, reactors, storage tanks, pipelines and heat exchangers, especially when handling corrosive chemicals.
Oil and gas industry: used for oil well equipment, refineries and natural gas processing equipment.
Marine engineering: used to manufacture offshore platforms, ship components and seawater desalination equipment.
Aerospace: used to manufacture aircraft engine components, combustion chambers and turbine blades, etc.
Nuclear power plants: used to manufacture nuclear reactor components.
