What material is Inconel625? What are the characteristics?
Inconel625 is a solid solution strengthened nickel-based superalloy with molybdenum and niobium as the main strengthening elements. Has excellent corrosion resistance and oxidation resistance. It has good tensile and fatigue properties at low temperatures to 980°C and is resistant to stress corrosion in salt spray environments. Therefore, it can be widely used in the manufacturing of aerospace engine parts, aerospace structural parts and chemical equipment. Inconel 625 alloy has good processing properties and welding properties, and can be supplied with various plates, rods, tubes, wires, strips and forgings.
The weld metal after welding with ERNiCrMo-3 (625 welding wire) has high strength and the ability to resist local erosion such as corrosion and crevice corrosion in a wide temperature range.
It is a face-centered cubic lattice structure. After being heated at about 650°C for a long enough time, carbon particles and unstable quaternary phase will precipitate and transform into a stable Ni3 (Nb, Ti) orthorhombic lattice phase. After solid solution strengthening, the molybdenum and niobium in the nickel-chromium matrix will improve the mechanical properties of the material, but the plasticity will be reduced.
1. ERNiCrMo-3 is mainly used for welding INCONEL 625 alloy, INCOLOY 825\25-6MO alloy and other molybdenum-containing stainless steels by gas metal arc welding or tungsten inert gas arc welding.
It can also be used for surface surfacing of steel, and can also be used to weld nickel steel and various corrosion-resistant alloys such as 20 alloy. ERNiCrMo-3 welding wire can be used for submerged arc welding to weld INCONEL 625 alloy or nickel steel, or for surface surfacing of steel. When performing submerged arc welding, INCOFLUX 7 submerged arc flux should be used.
2. General product specifications of this type of welding wire
Diameter: 3.2mm 2.4mm 2.0mm (usually straight welding wire)
1.6mm 1.2mm 1.0mm 0.9mm (upper plate welding wire)
