Known as Inconel(r) 625, this nickel-chromium-molybdenum alloy is a highly versatile superalloy. It offers remarkable oxidation protection, high strength and toughness, and outstanding resistance to high temperatures. It is used in a variety of applications including heat exchangers, exhaust systems, aqueous corrosion resistance, and valves. It is also known for its ability to resist pitting and crevice corrosion.
Inconel(r) Alloy 625 is used for high temperature applications, because it provides excellent strength, toughness, and resistance to corrosion in a wide range of corrosive environments. It also has excellent weldability and fabrication characteristics. It can be supplied in the following forms: welded pipe, bar, tube, and extruded sheet. It is commonly used in the chemical, marine, and power industry.
The alloy's strength is due to the solid solution effect from columbium and molybdenum. It also has a high resistance to chloride ions and stress corrosion cracking. This alloy can be readily welded by SMAW and GMAW. It also has excellent creep resistance and high fatigue strength.
Alloy 625 is also a good candidate for cold working. It can be formed using a variety of cold working processes. It is especially resistant to deformation at hot working temperatures, and is very tough at cryogenic temperatures.
Inconel Alloy 625 is used in a variety of marine applications, including propeller blades for boats and fuel lines. It is also used as a weld overlay for corrosion resistance. It has been used for pipelines that collect sour gas.