All About Hastelloy X Alloy: Composition, Properties, and Applications
- January 18, 2024
- 11:38 pm
- 1171
Hastelloy X alloy is a high-strength, high-temperature oxidation-resistant alloy composed mainly of nickel, chromium, molybdenum, and iron. It is one of the Hastelloy family of alloys and is widely used in aerospace, chemical, energy, and petroleum industries where high temperature, corrosion, and wear resistance are critical. In today’s article, we will introduce all about Hastelloy X alloy: composition, properties, and applications.
Hastelloy C-276 belongs to nickel-molybdenum-chromium-iron-tungsten nickel-based alloy, which is one of the most corrosion-resistant modern metal materials.
Hastelloy X is a nickel-based superalloy known for its exceptional high-temperature strength and oxidation resistance.
All About Hastelloy X Alloy: Composition, Properties, and Applications
All About Hastelloy X Alloy - 1. Composition:
The chemical composition of Hastelloy X alloy includes approximately 47.5% nickel, 22% chromium, 9% molybdenum, and 18.5% iron. The addition of these elements gives Hastelloy X excellent oxidation resistance and high-temperature corrosion resistance, allowing it to withstand oxidation and thermal corrosion in high-temperature environments up to 1100°C.
In addition, Hastelloy X alloy also has good processing performance and weldability, and can be processed using various methods such as forging, rolling, and drawing. It also has excellent oxidation and corrosion resistance, and performs well in chemical corrosion and high-temperature oxidation environments.
Hastelloy C-276 belongs to nickel-molybdenum-chromium-iron-tungsten nickel-based alloy, which is one of the most corrosion-resistant modern metal materials.
Hastelloy X is a nickel-based superalloy known for its exceptional high-temperature strength and oxidation resistance.
All About Hastelloy X Alloy - 2. Properties:
Hastelloy X alloy has excellent physical and chemical properties. The following are the main properties of the alloy:
- Density: The density of Hastelloy X alloy is 8.22 g/cm³.
- Strength: Hastelloy X alloy has excellent high-temperature strength and high strength, with a tensile strength of up to 950 MPa.
- Thermal expansion coefficient: The thermal expansion coefficient of Hastelloy X alloy is 13.1 × 10^-6/℃, which is lower than most metal materials.
- Thermal conductivity: The thermal conductivity of Hastelloy X alloy is 11.2 W/m·K, which has good thermal conductivity properties at high temperatures.
- Melting point: The melting point of Hastelloy X alloy is 1285℃, and its high melting point makes it have good stability in high-temperature environments.
- Corrosion resistance: Hastelloy X alloy has excellent corrosion resistance at high temperatures and can withstand the erosion of most corrosive media such as acids, alkalis, and oxides, making it particularly suitable for seawater corrosion environments.
- Antioxidant property: Hastelloy X alloy has excellent antioxidant properties at high temperatures, capable of withstanding oxidation and thermal corrosion up to 1100°C, maintaining material stability.
- Wear resistance: Hastelloy X alloy has high hardness and wear resistance, making it suitable for use in wear environments where high-speed rotating components are subjected to wear.
All About Hastelloy X Alloy - 3. Applications:
Hastelloy X alloy has excellent high temperature, high pressure, corrosion resistance, and wear resistance properties, and has been widely used in various industrial fields. Here are some typical applications of Hastelloy X alloy:
- Aerospace: Hastelloy X alloy is used in the aerospace industry to manufacture high-temperature engine and turbine blades, jet engines, and gas turbines.
- Chemical industry: Hastelloy X alloy is used in the chemical industry to manufacture reactors, distillation towers, pipelines, valves, and pumps, among other equipment, for the treatment of corrosive media such as acids, alkalis, oxides, and salts.
- Energy field: Hastelloy X alloy is used in the energy field to manufacture high-temperature equipment such as gas turbines, fuel cladding for nuclear reactors, heaters, heat exchangers, furnaces, etc.
- Petroleum field: Hastelloy X alloy is used in the petroleum field to manufacture equipment and pipelines on drilling platforms, which are used to withstand high temperatures, high pressures, and corrosive media.
All About Hastelloy X Alloy - 4. Variety and Specification:
There are many varieties and specifications of Hastelloy X alloy. According to specific application fields and processing requirements, various shapes and sizes of materials can be provided, including:
- Pipe: external diameter from 6mm to 219mm, wall thickness from 0.5mm to 20mm, length customized according to customer requirements.
- Plate: thickness ranging from 0.3mm to 60mm, width ranging from 1000mm to 2000mm, length ranging from 1000mm to 6000mm.
- Wire: Diameters ranging from 0.1mm to 10mm, length customized according to customer requirements.
All About Hastelloy X Alloy - 5. Supply Status:
The supply status of Hastelloy X alloy includes the following:
- Hot-rolled (R): refers to the state of material after hot rolling at high temperatures, with good processing performance and plasticity.
- Cold-rolled state (Y): refers to the state of the material after cold rolling at room temperature, with high strength and hardness.
- Solid solution annealed state (M): refers to the state of a material after solid solution annealing at high temperatures, with good plasticity and toughness, suitable for processing into various shapes of components.
- Solution-processed hardened state (MY): refers to the state of a material after undergoing solution annealing at high temperatures and then undergoing cold deformation processing, resulting in high strength and hardness, suitable for components that withstand high stress and high load.
More about Hastelloy X Alloy:
Due to the high chemical stability and high-temperature oxidation resistance of Hastelloy X alloy, there are also some special requirements for its production and processing:
- High processing difficulty: The high hardness and tensile strength of Hastelloy X alloy make it difficult to process, requiring the use of specialized processes and tools for processing and manufacturing.
- Strict welding requirements: The welding requirements for Hastelloy X alloy are very high, requiring strict control of welding temperature and welding speed to avoid weld defects and cracks.
- High requirements for cleanliness: Hastelloy X alloy requires high levels of cleanliness during manufacturing to avoid the impact of impurities and oxides on its properties. Therefore, a series of strict control measures are required during production and processing.
Why Choose Huaxiao Alloy?
Thank you for reading our article and we hope you’ve enjoyed it. If you want to find more information about Hastelloy X alloy, we would advise you to visit Huaxiao Alloy. As a leading supplier of Hastelloy X alloy products across the world, Huaxiao Alloy offers customers high-quality Hastelloy alloy products such as Hastelloy X alloy, Hastelloy C4, Hastelloy C-276, and Hastelloy C22 at a very competitive price.
Hastelloy C-276 belongs to nickel-molybdenum-chromium-iron-tungsten nickel-based alloy, which is one of the most corrosion-resistant modern metal materials.
Hastelloy X is a nickel-based superalloy known for its exceptional high-temperature strength and oxidation resistance.
Hastelloy X is a nickel-based superalloy designed for applications requiring exceptional resistance to oxidation and high-temperature strength. It is widely used in environments where both mechanical stress and extreme heat are present.
Key Properties:
- Composition: Primarily nickel with significant amounts of iron, molybdenum, and chromium, plus small additions of cobalt and tungsten.
- Thermal Stability: Excellent mechanical properties at temperatures up to 1200°C (2200°F).
- Corrosion Resistance: Outstanding resistance to oxidation, carburization, and stress corrosion cracking at high temperatures.
Applications:
- Aerospace: Turbine engine components, combustion chambers, and afterburners.
- Industrial: High-temperature furnace components and heat exchangers.
- Chemical Processing: Equipment exposed to high temperatures and corrosive gases.
| Property | Hastelloy C276 | Hastelloy X |
|---|---|---|
| Composition | Nickel-molybdenum-chromium alloy with tungsten. | Nickel-chromium-molybdenum-iron alloy with cobalt. |
| Primary Function | Exceptional corrosion resistance in reducing and oxidizing environments. | High-temperature strength and oxidation resistance. |
| Corrosion Resistance | Excellent in aggressive chemical environments, including chlorides. | Focused on oxidation and carburization resistance at high temperatures. |
| Applications | Chemical processing, marine, and pollution control systems. | Aerospace turbines, industrial furnaces, and heat exchangers. |
Key Difference: C276 excels in chemical environments, while Hastelloy X is designed for high-temperature applications.
Alloy X-750 is a nickel-chromium precipitation-hardenable superalloy known for its high strength and corrosion resistance in extreme environments. It is primarily strengthened by the addition of aluminum and titanium.
Key Properties:
- High Strength: Maintains mechanical strength at temperatures up to 700°C (1300°F).
- Corrosion Resistance: Resistant to oxidation and chemical corrosion.
- Thermal Stability: Excellent creep and stress rupture properties.
Applications:
- Aerospace: Gas turbines, jet engine components, and thrust reversers.
- Nuclear: Components in reactor cores and nuclear power systems.
- Industrial: High-temperature fasteners and springs.
| Aspect | Hastelloy | Alloy |
|---|---|---|
| Definition | A family of nickel-based alloys specifically engineered for corrosion and high-temperature environments. | A general term referring to any material made by combining two or more elements, usually metals. |
| Specialization | Highly specialized for chemical resistance and high-temperature strength. | Can include ferrous (steel) or non-ferrous (nickel, titanium) alloys, with broad applications. |
| Examples | Hastelloy C276, C22, X, and B3. | Examples include stainless steel, Inconel, and Monel. |
Key Insight: Hastelloy is a subset of alloys designed for specific industrial needs, particularly in extreme environments.
Yes, Hastelloy is a superalloy, as it belongs to a group of high-performance materials engineered for:
- Exceptional corrosion resistance: Particularly in harsh chemical and high-temperature environments.
- High mechanical strength: Retains properties under extreme conditions such as high stress and elevated temperatures.
- Thermal Stability: Performs well in applications exceeding 1000°C.
Superalloys like Hastelloy are commonly used in the aerospace, chemical processing, and energy industries.
| Aspect | Alloy | Metal Alloy |
|---|---|---|
| Definition | A material composed of two or more elements, at least one of which is a metal. | A specific type of alloy where metals are the predominant component. |
| Examples | Steel (iron + carbon), bronze (copper + tin). | Stainless steel, brass, and Hastelloy. |
| Scope | Includes both metal-metal combinations and metal-nonmetal combinations (e.g., Al-Si alloys). | Focuses on combinations of metals or metals with small non-metal additives. |
Conclusion: All metal alloys are alloys, but not all alloys are strictly composed of metals.
All About Hastelloy X Alloy: Composition, Properties, and Applications
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