What is Inconel 625?

Inconel 625  is a nickel-based alloy with high strength and excellent water resistance. The strength of 625 alloy is mainly due to the solution effect of molybdenum and niobium.

The alloy is a solid solution strengthened nickel base deformation superalloy with molybdenum niobium as the main strengthening element. It has excellent corrosion resistance and oxidation resistance. It has good tensile and fatigue properties from low temperature to 980℃, and is resistant to stress corrosion under salt spray atmosphere. Therefore, it can be widely used in the manufacture of aircraft engine parts, aerospace structural parts and chemical equipment.

Its performance and characteristics

1.the alloy has good cold and hot formability, steel ingot forging heating temperature 1120℃.

2. The average grain size of the alloy is closely related to the deformation degree and final forging temperature of the forging.

3. the welding performance of the alloy is good, can be used in a protective atmosphere with tungsten pole or the alloy as a filler for argon arc welding, also available brazing connection and resistance seam welding.

4.surface treatment process: remove the oxide skin on the surface of the alloy first alkali washing, and then pickling in acid, hydrofluoric acid – water solution.