Hot Selling GH4163 Nimonic263 C263 NCK20 Alloy Bar High Temperatur For Airc

What is High Temperature Alloy Bar?
High-temperature alloy refers to a type of metal material based on iron, nickel
and cobalt, which can work for a long time at high temperatures above 600℃ and
under certain stress; and has high high-temperature strength, good oxidation
resistance and corrosion resistance, good fatigue performance, fracture
toughness and other comprehensive properties. High-temperature alloy is a
single austenite structure, with good organizational stability and reliability
at various temperatures.

Based on the above performance characteristics, and the high degree of alloying
of high-temperature alloy, it is also called "superalloy", which is an
important material widely used in aviation, aerospace, petroleum, chemical
industry, and ships. According to the matrix elements, high-temperature alloys
are divided into iron-based, nickel-based, cobalt-based and other high-
temperature alloys. The use temperature of iron-based high-temperature alloys
can generally only reach 750~780℃. For heat-resistant parts used at higher
temperatures, nickel-based and refractory metal-based alloys are used. Nickel-
based high-temperature alloys occupy a particularly important position in the
entire field of high-temperature alloys. It is widely used to manufacture the
hottest parts of aviation jet engines and various industrial gas turbines.

Key Features
High-Temperature Strength: GH4163, Nimonic263, C263, and NCK20 alloys are
engineered to withstand extreme temperatures while maintaining structural
integrity. These alloys perform exceptionally well in high-stress, high-
temperature environments.

Oxidation and Corrosion Resistance: One of the main advantages of high-
temperature alloys is their ability to resist oxidation and corrosion, even
when exposed to hot gases and other aggressive environments. This ensures
longevity and reliability in critical applications like gas turbines and
aircraft engines.

Fatigue and Fracture Toughness: The alloys exhibit excellent fatigue resistance
and fracture toughness, making them ideal for components subject to repeated
loading, like turbine blades and rotor components.

High Durability: High-temperature alloys like GH4163 and Nimonic263 are known
for their exceptional durability, making them the preferred choice for long-
lasting applications in the aerospace industry.

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

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