... with excellent resistance to pitting, crevice corrosion, intercrystalline corrosion, and erode in oxide, also good resistance to inorganic acid corrosion ... welding. 625 have the resistance to oxidation and carbonizing in the static and cycle environments, also hacve the resistance the ... -heater,gas import board, fan, blender, fair water fin, flue and so on for using in flue gas desulfurization system.4 ...