Gh4738, Gh864, Waspaloy, and NC20K14 are all names for the same high-performance nickel-based superalloy known for its excellent high-temperature strength, oxidation resistance, and thermal stability. This alloy is commonly used in critical applications where materials must perform under extreme temperatures and mechanical stresses, such as in aerospace engines, gas turbines, and other high-temperature environments.
Key Properties of Gh4738 (Gh864, Waspaloy, NC20K14)
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Chemical Composition:
- Nickel (Ni): The primary component of the alloy, usually ranging between 50-60%.
- Chromium (Cr): Approximately 13-15%, providing excellent oxidation resistance at high temperatures.
- Cobalt (Co): Around 10-15%, enhancing high-temperature strength and stability.
- Molybdenum (Mo): About 2-4%, improving high-temperature strength and resistance to oxidation and corrosion.
- Titanium (Ti): Typically 2-4%, contributing to age-hardening capabilities and strengthening the alloy at elevated temperatures.
- Aluminum (Al): Often included in smaller amounts for enhanced oxidation resistance.
- Iron (Fe): Present as the balance element.
- Other minor elements may include carbon, boron, and silicon for mechanical and thermal properties.
Typical Composition (approximate):
- Nickel (Ni): 50-60%
- Chromium (Cr): 13-15%
- Cobalt (Co): 10-15%
- Molybdenum (Mo): 2-4%
- Titanium (Ti): 2-4%
- Aluminum (Al): 1-2%
- Iron (Fe): Balance
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High-Temperature Performance:
- Oxidation Resistance: The alloy exhibits excellent resistance to oxidation at high temperatures, maintaining integrity and performance in air-exposed environments.
- Creep Resistance: Gh4738 (Waspaloy) offers superior creep resistance, which is essential in applications subjected to prolonged high heat and stress, such as in gas turbines or aerospace engines.
- Thermal Stability: It maintains its mechanical properties and strength at elevated temperatures, making it ideal for components exposed to extreme heat, such as turbine blades and combustion chambers.
- Fatigue Resistance: Excellent resistance to fatigue under thermal and mechanical cycling, providing durability in critical applications.
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Mechanical Properties:
- Tensile Strength: The alloy has high tensile strength at elevated temperatures, which is critical for parts that bear mechanical loads.
- Hardness: Maintains good hardness even at high temperatures, contributing to wear resistance.
- Fatigue Resistance: High resistance to fatigue and thermal cycling, making it ideal for components that experience repeated stress.
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Corrosion Resistance:
- General Corrosion Resistance: It is highly resistant to general corrosion and oxidation, which enhances the alloy's lifespan and performance in extreme conditions.
- High-Temperature Corrosion Resistance: Performs well in environments where both high heat and corrosive substances are present.
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Applications:
- Aerospace Industry: Turbine blades, nozzles, rotor discs, combustion chambers, and other high-temperature components in jet engines and gas turbines.
- Power Generation: Used in components like gas turbines, heat exchangers, and combustion chambers that operate in high-temperature environments.
- Marine & Offshore: Components exposed to high temperatures and corrosive environments.
- Chemical & Nuclear Processing: In reactors, furnaces, and heat exchangers, where both high temperatures and corrosive environments are encountered.
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Forms Available:
- Strip
- Sheet
- Coil
- Plate
- Bar
Advantages of Gh4738 (Gh864, Waspaloy, NC20K14):
- High-Temperature Strength: The alloy maintains strength and stability under extreme temperatures, making it ideal for use in turbine engines and jet engines.
- Oxidation Resistance: It exhibits excellent resistance to oxidation, ensuring durability in high-temperature, air-exposed environments.
- Creep and Fatigue Resistance: Exceptional resistance to creep and fatigue, even at high temperatures, which is essential for high-performance components.
- Corrosion Resistance: The alloy has strong resistance to corrosion in both general and high-temperature corrosive environments.
- Versatile Applications: Suitable for various industries such as aerospace, power generation, marine, and chemical processing.
Summary:
Gh4738 (also known as Gh864, Waspaloy, or NC20K14) is a high-performance nickel-based superalloy designed for extreme high-temperature and high-stress environments. It offers excellent high-temperature strength, oxidation resistance, creep resistance, and thermal stability, making it ideal for aerospace, power generation, and chemical processing applications. It is available in various forms such as strip, sheet, coil, and plate, and is commonly used in turbine blades, gas turbines, heat exchangers, and other high-performance components.
Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.
Product Description
Superalloy steel strips and plates are specially designed materials used in environments where high heat and stress are present. These alloys are made by adding elements like chromium, nickel, and molybdenum to steel, which help improve their strength, resistance to oxidation, and durability at high temperatures.High-temperature alloy steels are made to be strong, durable, and resistant to damage in extreme conditions, making them essential for many high-performance industries.
| Item |
Description |
| Material Type |
superalloy |
| Main Composition |
Primarily iron, with alloying elements like chromium (Cr), nickel (Ni), cobalt (Co), molybdenum (Mo), etc. |
| Temperature Resistance |
Designed to withstand high temperatures, typically up to 650°C-1000°C (varies depending on alloy composition). |
| Properties |
High strength, oxidation and corrosion resistance, and thermal stability under elevated temperatures. |
| Common Forms |
Strips, plates, sheets, foils. |
| Applications |
Turbines, jet engines, heat exchangers, industrial furnaces, power plants, and other high-temperature environments. |
| Fabrication Techniques |
Can be cold-rolled, hot-rolled, or heat-treated for different forms and applications. |
| Thickness Range (Strips) |
0.1 mm to 3 mm (typically). |
| Thickness Range (Plates) |
3 mm to 100 mm or more (depending on the grade and specifications). |
| Heat Treatment |
Solution treatment, aging, or quenching to enhance properties like strength and resistance. |
| Corrosion Resistance |
Enhanced corrosion resistance, especially in high-temperature environments. |
| Common Grades |
Hastelloy, Inconel, Incoloy, etc. (specific alloys depend on the application and temperature requirement). |
superalloy are materials designed to maintain their strength, stability, and resistance to oxidation and corrosion when exposed to high temperatures, typically above 500°C (932°F). These alloys are essential in environments where metals are subjected to extreme heat, such as in turbines, jet engines, power plants, and chemical processing industries.
The key characteristics of high-temperature alloys include:
- High Strength: They retain their mechanical strength even at elevated temperatures.
- Oxidation Resistance: They resist oxidation and scaling in hot air or gases.
- Creep Resistance: These alloys resist deformation (creep) under long-term exposure to stress at high temperatures.
Common types of high-temperature alloys include nickel-based alloys (e.g., Inconel), cobalt-based alloys (e.g., Stellite), and iron-based alloys (e.g., AISI 310). These alloys are used in critical applications like turbine blades, aerospace components, and industrial reactors, where performance under extreme conditions is crucial.
High-Temperature Alloys are materials designed to maintain their strength, stability, and resistance to oxidation and corrosion when exposed to high temperatures, typically above 500°C (932°F). These alloys are essential in environments where metals are subjected to extreme heat, such as in turbines, jet engines, power plants, and chemical processing industries.
The key characteristics of high-temperature alloys include:
- High Strength: They retain their mechanical strength even at elevated temperatures.
- Oxidation Resistance: They resist oxidation and scaling in hot air or gases.
- Creep Resistance: These alloys resist deformation (creep) under long-term exposure to stress at high temperatures.
Common types of high-temperature alloys include nickel-based alloys (e.g., Inconel), cobalt-based alloys (e.g., Stellite), and iron-based alloys (e.g., AISI 310). These alloys are used in critical applications like turbine blades, aerospace components, and industrial reactors, where performance under extreme conditions is crucial
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FAQ
1. What are high-temperature alloys?
High-temperature alloys are materials designed to maintain excellent mechanical properties, oxidation resistance, corrosion resistance, and structural stability under high-temperature conditions. These alloys are commonly used in industries like aerospace, energy, chemical, and automotive, especially in environments with extreme conditions.
2. What are the main uses of high-temperature alloys?
High-temperature alloys are primarily used in the following applications:
- Aerospace and Aviation: Turbine blades, jet engine components, and gas turbines.
- Energy Industry: Gas turbines, heat exchangers, steam turbines.
- Automotive Industry: Turbochargers, exhaust systems, engine components.
- Chemical Industry: Corrosion-resistant equipment such as reactors, boilers, etc.
3. What are the main types of high-temperature alloys?
Common types of high-temperature alloys include:
- Nickel-based alloys: For example, Inconel and Hastelloy, widely used in high-temperature environments.
- Cobalt-based alloys: Such as Stellite alloys, typically used in applications that require extreme heat and corrosion resistance.
- Iron-based alloys: Such as heat-resistant steels, used in environments with slightly lower temperature requirements.
4. Why are high-temperature alloys expensive?
High-temperature alloys are typically more expensive due to several reasons:
- Raw material costs: Many high-temperature alloys contain expensive metals like nickel, cobalt, and molybdenum.
- Manufacturing processes: The production of high-temperature alloys requires specialized smelting, heat treatment, and processing techniques, which drive up production costs.
- Heat resistance requirements: The alloys must possess excellent heat resistance, corrosion resistance, and oxidation resistance, which involves higher technical demands.
5. How do I choose the right high-temperature alloy for my needs?
When selecting a high-temperature alloy, consider the following factors:
- Application environment: Factors like working temperature, exposure to corrosive substances, high pressure, or shock loads.
- Mechanical performance requirements: Different alloys have varying strengths, hardness, fatigue resistance, and more, so choose the alloy based on your specific needs.
- Cost considerations: Choose the most suitable alloy based on your budget, as high-temperature alloys can vary significantly in price.
6. Can I purchase small quantities of high-temperature alloys?
Yes, we offer small-batch customization services to meet your specific needs. Many high-temperature alloy suppliers can produce small quantities and offer different shapes and sizes of products.
7. What is the typical delivery time for high-temperature alloys?
The delivery time depends on several factors, including:
- Order volume: Large orders may take longer to produce.
- Material types and specifications: Some specific high-temperature alloys may require longer production and processing times.
- Supply chain conditions: Raw material availability and processing times can also affect delivery. Generally, delivery time ranges from a few weeks to a few months.
8. How can I ensure that the high-temperature alloys I purchase meet quality standards?
We recommend that you:
- Choose reputable suppliers who comply with international standards (e.g., ASTM, ISO).
- Request detailed material certificates and quality inspection reports, such as chemical composition analysis, mechanical property tests, etc.
- Confirm the heat treatment and processing methods with the supplier to ensure the alloy meets your specific requirements.
9. Can high-temperature alloys be further processed or customized?
Yes, many high-temperature alloys can be further processed or customized, including cutting, welding, heat treatment, etc. We offer corresponding processing services, and we can produce customized sizes and shapes based on your requirements.
10. What after-sales services are provided for high-temperature alloys?
We offer comprehensive after-sales services, including:
- Technical support: We provide consulting on material selection, processing, installation, and usage.
- Quality assurance: We guarantee that the high-temperature alloys meet the specifications and offer quality assurance on the products.
- Regular inspections and feedback: For long-term customers, we offer regular quality inspections and performance feedback to ensure the reliability of the alloys in real-world applications.
11. Do high-temperature alloys have recycling value?
Yes, many high-temperature alloys, especially nickel-based and cobalt-based alloys, have high recycling value. Under certain conditions, these alloys can be recycled, especially in high-value components in industries like aerospace and energy.
12. How do I place an order for high-temperature alloys?
You can place an order through the following methods:
- Directly contact the sales team with your requirements and specifications.
- Order online (if the supplier offers an online platform).
- Submit an RFQ (Request for Quotation) to receive detailed pricing and delivery information.
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