GH4783 superalloy encyclopedia

Mondo Technology Updated on 2024-01-19

GH4783 is an important superalloy, the following is a detailed analysis of its chemical composition, properties, international corresponding grades and application fields:

Chemical Composition: The chemical composition of GH4783 alloy includes a variety of elements, the main elements of which include:

Carbon (c): 003-0.10%

Chromium (cr): 180-21.0%

Nickel (Ni): Margin.

Molybdenum (Mo): 350-5.00%

Cobalt (Co): 120-15.0%

Aluminum (AL): 120-1.60%

Titanium (Ti): 275-3.25%

Iron (Fe): 200%

The precise ratio of these elements gives GH4783 excellent high-temperature performance, oxidation resistance and corrosion resistance.

Performance characteristics: density: the density of GH4783 alloy is relatively low, which is 822 g cm to help reduce the weight of manufactured parts.

High temperature performance: The alloy shows good strength and long-lasting properties above 650°C, has excellent high temperature fatigue life, and is suitable for high temperature environments.

Oxidation resistance: Chromium forms a dense oxide protective film at high temperatures, which improves the oxidation resistance of the alloy.

Corrosion resistance: GH4783 alloy has excellent corrosion resistance to most acids and alkalis.

Processing performance and welding process: The welding of alloys is more complex, and argon arc welding is generally used, which requires welding in a solid solution state and the same alloy is used as the welding wire.

Microstructure: The alloy contains phase and M23C6 carbide phase, which has stable structure and properties.

International Corresponding Grades:

The international corresponding grades of GH4783 alloy include:

New name for high temperature: GH4783

High temperature old name: GH783

American Standard ASTM: Inconel783

These corresponding grades are widely recognized internationally and contribute to the application of the alloy and internationally**.

Applications: GH4783 alloy is widely used in aviation, aerospace, petroleum, chemical and power generation equipment and other fields, including the following key components:

Compressor blades.

Turbine discs. Valve body. Ring. Axis.

Due to its excellent high-temperature performance, oxidation resistance and corrosion resistance, GH4783 alloy plays an important role in these fields. Its high strength and excellent high-temperature fatigue life also improve reliability in high-temperature environments, making it one of the key materials in modern industry.

Overall, GH4783 is a high-performance superalloy whose excellent properties and wide range of applications make it one of the materials of choice for engineers when manufacturing high-temperature components.

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