International name: Inconel Alloy 625, NS336 625, NAS, W.Nr.2.4856, UNS NO6625, Nicrofer S 6020-FM 625, ATI 625
Executive standard: ASTM B443/ASME SB-443, ASTM B444/ASME SB-444, ASTM B366/ASME SB-366, ASTM B446/ASME SB-446, ASTM B564/ASME SB-564
The main component: C≤0.01, Mn≤0.50, Ni≥58, Si≤0.50, P≤0.015, S≤0.015, Cr20.0～23.0, Fe ≤5.0, Al ≤0.4, Ti ≤0.4, Nb 3.15～4.15, Co ≤1.0, Mo 8.0～10.0.
Physical properties: 625 alloy, density: 8.44g/cm3, melting point: 1290-1350 degrees, magnetic: no.
Heat treatment: 950-1150 degrees, insulation 1-2 hours, fast air cooling or water cooling.
Mechanical properties: tensile strength: σb≥ 758Mpa, yield strength:σb≥ 379Mpa, elongation: δ≥30%, hardness: HB150-220.
The corrosion resistance and the main use of the environment:
Inconel 625 is a nickel as the main components of austenitic superalloys. Because of the solid solution strengthening effect of molybdenum, niobium in Ni Cr alloy, in the low temperature to 1093 degrees, it has high strength, anti fatigue properties of extraordinary, which is widely used in aviation. Although the alloy is designed to adapt to the environment of high temperature strength of the alloy, but the high content of chromium, molybdenum has highly resistance to pitting corrosion, crack change ability in many corrosion media, from the high oxidation environment to general corrosion environment, which shows excellent corrosion resistance characteristics. Chloride contamination media such as sea water, geothermal water, neutral salt and brine, Inconel 625 also have super corrosion resistance.
Application area: a process unit in an organic chemical process consisting of chlorides, especially in the use of acid chloride catalyst. Digester and bleach tank for the manufacture of pulp and paper industries, the absorption tower, flue gas desulfurization system and heater flue gas inlet baffle, fan (damp), mixer, guide plate and flue, used in the manufacture of equipment and components used in acid gas environment, the reaction of acetic acid and acetic anhydride generator, sulfuric acid condenser, pharmaceutical equipment, bellows and other industries and products.
