InconelX-750 (N07750) nickel-based deformed high-temperature alloy
InconelX-750 (N07750) nickel-based deformed high-temperature alloy
US brand: InconelX-750 /UNS N07750
Chinese brand: GH145/GH4145
German brand: NiCr15Fe7TiAl
French brand: NC15FeTNbA
Japanese brand: NCF750
1. Overview of InconelX-750
Inconel Strength, it has good relaxation resistance below 540 degree , and also has good formability and welding performance. This alloy is mainly used to manufacture ring parts, structural parts, bolts and other parts of aero engines that work below 800 degree and require high strength and corrosion resistance, and planes that have medium or low stress and require relaxation resistance that work below 540 degree . Springs and coil springs. It can also be used to manufacture parts such as turbine blades. Available varieties include plates, strips, bars, forgings, rings, wires and tubes.
1.1 InconelX-750 material grade InconelX-750
1.2 InconelX-750 similar brands GH145/GH4145 (China), NiCr15Fe7TiAl (Germany), NC15FeTNbA (France), NCF750 (Japan)
1.3 Technical standards of InconelX-750 material
1.4 InconelX-750 heat treatment system: The solid solution heat treatment system of plates, strips and pipes in the supply state is 980 degree ±15 degree , air cooling. For the intermediate heat treatment system of materials and parts, the following processes can be selected for heat treatment.
Annealing: 955~1010 degree , water cooling.
Annealing of welded parts before welding: 980 degree , 1h.
Stress relief annealing of welded parts: 900 degree , moisturizing for 2 hours.
Stress relief annealing: 885 degree ±15 degree , 24h, air cooling.
1.5 InconelX-750 variety specifications and supply status It can supply various specifications of bars, forgings, rings, hot-rolled plates, cold-rolled plates, strips, pipes and wires.
Bars, forgings and rings can be supplied in the forged or hot-rolled state; they can also be supplied after solution treatment after forging; bars can be supplied after solution treatment by grinding or polishing; when the order requires it, they can be supplied in cold Pull state in place.
The wire can be supplied in a solid solution state; for wires with a nominal diameter or thickness below 6.35mm, it can be supplied after solid solution and with a cold drawn deformation of 50% to 65%; for wires with a nominal diameter or side length greater than 6.35mm Wire material is supplied with a cold drawing deformation of not less than 30% after solution treatment. For wires with a nominal diameter or side length not greater than 0.65mm, they are supplied with a cold drawing deformation of not less than 15% after solution treatment as required.
1.6 InconelX-750 smelting and casting process The alloy adopts electric arc furnace plus vacuum consumable remelting, vacuum induction plus electroslag, electroslag plus vacuum consumable remelting or vacuum induction plus vacuum consumable remelting.
2. Inconel X-750 physical and chemical properties
2.1 Inconel X-750 thermal performance
2.1.1 Inconel X-750 melting temperature range is 1395~1425 degree .
2.2 Inconel X-750 density ρ=8.25g/cm3.
2.3 Electrical properties of Inconel X-750 The resistivity at 50 degree is ρ=1.22×10-6Ω.m.
