NS312

NS312 is an early developed nickel-chromium-iron based solid solution strengthening alloy with good high temperature corrosion resistance and oxidation resistance, excellent hot and cold working and welding process performance, satisfactory thermal strength and high temperature performance below 700°C. Malleability. The alloy can be strengthened by cold working, or joined by resistance welding, solution welding or brazing. It can be supplied as cold rolled thin plates, hot rolled thick plates, strips, wires, bars, round cakes, ring billets, ring forgings, etc. It is suitable for the production of oxidation resistant parts below 1100°C under low load.

NS312 process properties and requirements NS312 formability alloy has good hot workability. Ingot forging heating temperature is 1110~1140℃; final forging temperature is not less than 950℃, slab rolling heating temperature is 1130~1170℃, finishing rolling heating temperature is 1090~1130℃. The solid solution treatment temperature of the finished product is 1010-1050℃. NS312 welding performance The alloy has good welding performance and can be connected by various methods such as arc welding, argon arc welding, resistance welding and brazing. Large or complex welded structural parts should be annealed at 870℃ for 1h after fusion welding to eliminate welding stress. NS312 parts heat treatment process parts heat treatment process should be carried out according to the heat treatment system of the corresponding material standards. Annealing of plate and strip parts should be carried out in a protective atmosphere.