What is GH2132?
- July 28, 2024
- 9:59 pm
- 385
GH2132 is a high-temperature alloy with iron (Fe), nickel (Ni) and chromium (Cr) as the main components, and its specific chemical composition is Fe-25Ni-15Cr, which is synthesized and strengthened by the addition of molybdenum (Mo), titanium (Ti), aluminum (Al), vanadium (V), and trace boron (B). The alloy has high strength and excellent corrosion resistance at room temperature, and exhibits high yield strength and long-lasting creep strength at high temperatures, up to a maximum service temperature of 650°C. The alloy is also available in a wide range of materials, including aluminum, titanium, aluminum (Ti), vanadium (V), and trace boron (B).
Chemical Composition
The main chemical composition of GH2132 alloy includes:
- Nickel (Ni): about 24.0-27.0%
- Chromium (Cr): about 13.5-16%
- Molybdenum (Mo): about 24%
- Iron (Fe): about 3%
Other trace elements: such as titanium (Ti), aluminum (Al), vanadium (V) and trace boron (B), etc.In addition, other elements such as manganese, silicon, cobalt and vanadium may be present.
The effect of the chemical composition of GH2132 alloy
- GH2132 alloy has high yield strength and enduring, creep strength below 650°C. This is mainly attributed to its complex microstructure, including uniformly distributed diffuse phases and solid solutions. In particular, the precipitation strengthening of the γ’-Ni3(Ti, Al) phase allows the alloy to exhibit excellent mechanical properties at elevated temperatures.
- The presence of chromium (Cr) confers good corrosion resistance to GH2132 alloy, enabling it to operate stably in high temperature and corrosive environments.
- GH2132 alloy has good machining plasticity and satisfactory weldability, thanks to its comprehensively strengthened design, including added elements such as molybdenum, titanium, aluminum, vanadium and trace boron.
- In terms of mechanical properties, GH2132 alloy has a tensile strength of 115-234 MPa, a yield strength of 23 MPa, a ductility of 65%, an HBS grade of 123-321 and an HRC grade of 30
The HBS grade is 123-321, and the HRC grade is 30.
Application cases in aero-engine component manufacturing
1.Turbine disks
GH2132 alloy is widely used in the manufacture of turbine disks for aero-engines due to its excellent high temperature strength and creep resistance. These components are required to operate at high temperatures for long periods of time and therefore require extremely high material properties.
2.Compressor disks
The alloy is also used in the manufacture of compressor disks for aero-engines, which also need to withstand high temperatures and high rotational mechanical loads.
3.Fasteners
GH2132 alloy is also used in the manufacture of various types of fasteners for aero-engines, which work at high temperatures and pressures, and have high requirements for corrosion resistance and mechanical strength.
4.Load bearing rings and magazines
In addition, GH2132 alloy is also used in the manufacture of aero-engine load bearing rings and magazines and other components, which also need to have good high-temperature performance and mechanical strength.
5.Shafts and plate welded bearings
GH2132 alloy is also used in the manufacture of aero-engine shafts and plate welded bearings, which need to maintain high stability and reliability when working in high temperature environments.
6.Charge chamber
In addition to the above components, GH2132 alloy is also used in the manufacture of aero-engine charge chambers, which are also required to work in high temperature environments and require good oxidation resistance and high-temperature strength.
Advantages
1.High-temperature performance
GH2132 alloy has extremely high yield strength and long-lasting, creep strength below 650°C, which makes it able to maintain good mechanical properties in a high-temperature environment, and is suitable for components such as aero-engines, etc., that need to work at high temperatures for long periods of time.
2.Machining plasticity
GH2132 alloy has excellent machining plasticity, which means that it performs well in hot and cold machining and molding processes, and is able to meet the manufacturing needs of complex parts.
3.Weldability
The alloy also has satisfactory weldability, which makes it easy to weld to other materials or to itself during the manufacturing process, thus increasing the reliability of the overall structure.
4.Wide range of applications
Due to its excellent high-temperature performance and good processability, GH2132 alloy is particularly suitable for the manufacture of high-temperature load-bearing components in aero-engines, such as turbine disks, compressor disks, rotor blades and fasteners.
Ducol is a trademarked name for a family of low-alloy, high-strength steels developed primarily for use in shipbuilding, pressure vessels, and structural applications. The composition of Ducol steels typically includes:
- Carbon (C)
- Manganese (Mn)
- Silicon (Si)
- Nickel (Ni)
- Chromium (Cr)
These elements provide Ducol steel with improved toughness, weldability, and resistance to wear and corrosion.
SA216 WCC is a specification for carbon steel castings suitable for high-temperature service. It is commonly used in the manufacture of valve bodies, flanges, fittings, and other pressure-containing parts. The material composition typically includes:
- Carbon (C)
- Manganese (Mn)
- Silicon (Si)
- Phosphorus (P)
- Sulfur (S)
SA216 WCC is known for its good mechanical properties, including tensile strength, yield strength, and ductility, suitable for high-pressure and high-temperature environments.
38Cr2 is a chromium steel alloy, often used in applications requiring good wear resistance and moderate toughness. The composition of 38Cr2 typically includes:
- Carbon (C): 0.35-0.42%
- Chromium (Cr): 0.90-1.20%
- Manganese (Mn): 0.50-0.80%
- Silicon (Si): ≤0.40%
This material is commonly used for manufacturing components like gears, shafts, and other parts subjected to medium mechanical stresses.
Steel 1.7225, also known as 42CrMo4, is a chromium-molybdenum alloy steel. It is known for its high strength, toughness, and wear resistance, making it suitable for highly stressed components. The typical composition includes:
- Carbon (C): 0.38-0.45%
- Chromium (Cr): 0.90-1.20%
- Molybdenum (Mo): 0.15-0.30%
- Manganese (Mn): 0.60-0.90%
- Silicon (Si): 0.10-0.40%
It is commonly used in the automotive and mechanical engineering industries for components like crankshafts, gears, and axles.
Devarda’s alloy is a reducing agent used in analytical chemistry, particularly for the determination of nitrates and nitrites. It is composed of:
- Aluminum (Al): ~45%
- Copper (Cu): ~50%
- Zinc (Zn): ~5%
It is used to reduce nitrates to ammonia under alkaline conditions.
Ferromanganese is an alloy of iron and manganese, typically containing around 70-80% manganese and 20-30% iron. It is used primarily in steelmaking:
- Deoxidizing agent: Removes oxygen from molten steel.
- Alloying element: Adds manganese to steel, improving hardness, toughness, and wear resistance.
Tibetan alloy, also known as Tibetan silver, is a term used to describe various metal alloys used in traditional Tibetan artifacts and jewelry. These alloys typically include:
- Copper (Cu)
- Nickel (Ni)
- Zinc (Zn)
- Silver (Ag): In some cases, it contains a small percentage of silver.
The exact composition can vary, but the alloy is known for its durability and distinctive appearance.
Titanium aluminide is an intermetallic compound, primarily consisting of titanium (Ti) and aluminum (Al), often with the formula TiAl. It is known for:
- High temperature resistance
- Low density
- Good oxidation resistance
Applications include components in aerospace engines and automotive industries, such as turbine blades and exhaust valves.
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