Inconel 600 thermal expansion coefficient Inconel 600 chemical composition
Nickel-based superalloy
American brand: Inconel/Inconel600
Chinese brand: GH600/GH3600
1. Overview of Inconel600
Inconel600 is an early-developed nickel-chromium-iron-based solid solution strengthened alloy. It has good high-temperature corrosion resistance and oxidation resistance, excellent hot and cold processing and welding process properties, and has satisfactory thermal strength and high strength below 700°C. Plasticity. The alloy can be strengthened by cold working, and can also be connected by resistance welding, solution welding or brazing. It can supply cold-rolled sheets, hot-rolled thick plates, strips, wires, bars, round cakes, ring blanks, ring forgings, etc. Suitable for making anti-oxidation parts that can withstand low loads below 1100°C.
1.1 Material grade Inconel600.
1.2 Inconel600 similar brands Inconel, GH600, GH3600 (China).
1.5 Heat treatment system: Plate: 1010~1050℃, 3~5min/mm, air cooling; Strip: 1010℃±10℃, air cooling; Wire: 1065℃±10℃, air cooling. The inspection test of rods and ring parts has been carried out at 1010℃±10℃ and air-cooled and solid solution treated.
1.6 Variety specifications and supply status We can supply various specifications of plates, bars, forgings, strips, wires, round cakes, ring blanks, and ring forgings. Bars are supplied in forged and rolled state, surface polished or polished; round cakes and ring blanks are supplied in forged state; rings are supplied in solid solution state; plates are supplied after solid solution, alkali pickling, straightening and trimming; The strip is delivered after cold rolling, solution solution and descaling; the wire is delivered in solution pickled disc shape or straight strip shape, solution straight strip shape and fine grinding state.
1.7 Smelting and casting process The alloy is smelted using one of the following processes: (1) non-vacuum induction melting plus electroslag remelting; (2) electric arc furnace melting plus electroslag remelting; (3) vacuum melting.
1.8 Application Overview and Special Requirements This alloy has mature experience in use abroad. It has been made into aerospace engine parts in China. After passing flight tests, it has also begun to be used in aviation.
2. Physical and chemical properties of Inconel600
2.1 Inconel600 thermal performance
2.1.1 Melting temperature range 1370~1430℃.
Inconel600 organizational structure
4.1 Inconel600 phase transition temperature
4.2 Inconel600 time-temperature-structure transformation curve
4.3 Microstructure of Inconel600 alloy After the alloy was treated at 1120°C for 2 hours, there were only TiN nitrides and Cr7C3 carbides. After long-term aging at 870°C for 1500h, the structure still contained Cr7C3 and TiN, indicating that the alloy structure was stable.
4. Inconel600 process performance and requirements
5.1 Inconel600 formability alloy has good hot working properties. The heating temperature for steel ingot forging is 1110~1140℃; the final forging temperature is not less than 950℃, the heating temperature for slab rolling is 1130~1170℃, and the heating temperature for finish rolling is 1090~1130℃. ℃. The solution treatment temperature of finished products is 1010~1050℃.
5.2 Inconel600 welding performance 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°C for 1 hour after welding to eliminate welding stress. .
5.3 Heat treatment process of Inconel600 parts The heat treatment process of parts should be carried out according to the heat treatment system of the corresponding material standard. Annealing of sheet and strip parts should be carried out in a protective atmosphere
