Aerospace components Application High Temperature Alloy Bar GH2747 GH747

GH2747 High Temperature Alloy Bar Description

GH2747, this excellent Fe-Ni-Cr-based precipitation hardening deformation high-temperature alloy, has demonstrated unparalleled value in cutting-edge fields such as aviation and aerospace with its excellent solid solution state usage characteristics. It is like a tenacious warrior, standing firm in the high-temperature battlefield of 1100℃-1250℃ for a long time, and even in a short sprint, it can withstand the scorching test of up to 1300℃. Its dual properties of high-temperature heat resistance and corrosion resistance enable it to maintain stable combat effectiveness in harsh environments.

The welding performance of GH2747 alloy is excellent. It can handle complex processes and delicate operations with ease. Products in various forms such as bars, plates, pipes, wires and forgings have demonstrated its excellent plasticity and diversity. In terms of heat treatment system, GH2747 is more rigorous and efficient. Whether it is hot-rolled bars, forged bars or forgings, they are strictly controlled at 1000-1200℃, water-cooled and kept warm for a suitable time to ensure that the material performance reaches the best state.

Manufacturing Process

1. Melting

The process begins with the melting of high-purity raw materials in an electric arc furnace or induction furnace. The molten metal is then refined to remove impurities and achieve the desired chemical composition.

2. Casting

After refining, the alloy is cast into ingots. These ingots are typically subjected to a homogenization heat treatment to eliminate segregation and enhance uniformity.

3. Forging

The ingots are then hot-forged at temperatures above 1100°C to achieve the desired shape and grain structure. This step is crucial as it refines the microstructure and improves the mechanical properties of the alloy.

4. Hot Rolling

Following forging, the material undergoes hot rolling to reduce the thickness and achieve the final dimensions of the bars. This process also enhances the directional properties of the alloy.

5. Annealing

To relieve internal stresses and improve ductility, the rolled bars are annealed at temperatures around 900-950°C. This step ensures the material is ready for final machining and use.

6. Finishing

The final step involves cutting the bars to the required lengths and applying any necessary surface treatments. This may include grinding, polishing, or coating to protect against environmental factors.

GH2747 Chemical Composition

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