Incoloy Alloy
GNEE steel group is a supply chain integrated enterprise including steel plate, coil, profile, outdoor landscape design and processing. Founded in 2008, with 5 million RMB registered capital, Gnee has made impressive progress and development in steel market with Gnee People more than 10 years hard fighting. At present, the total investment amount reaches 30 million RMB, workshop area more than 35000㎡, with over 200 employees. Gnee is becoming the most professional international steel supply chain company in China central plains with explicit strategic framework, integrated governance structure, firm management foundation, abundant fund and human power.
Group has 5 subsidiary corporations, located in Anyang, Tianjin, Hongkong and Singapore countries and districts. Headquarters is in hometown of oracle in Henan province, location of world cultural heritage" Yin Ruin", Anyang city, one of eight ancient capitals of China.
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What Is Incoloy Alloy?
Incoloy products are mostly chromium-based and mostly nickel-based, and designed for corrosion resistance as well as strength at high temperatures. Incoloy alloys belong to the category of super austenitic stainless steels.
High temperature resistance
Incoloy alloy can withstand high temperatures without losing its strength or ductility. This makes it ideal for applications such as jet engine parts, gas turbines, and industrial furnaces.
Corrosion resistance
Incoloy alloy has excellent resistance to a wide range of corrosive environments, including acids, alkalis, and salts. This makes it suitable for use in chemical processing plants, paper mills, and food processing equipment.
Strength and durability
Incoloy alloy has high tensile strength and durability, making it ideal for applications that require heavy loads or high stress. It is often used in the construction of bridges, buildings, and heavy machinery.
Electrical conductivity
Incoloy alloy has good electrical conductivity, making it suitable for use in electrical components and circuits.
Formability and weldability
Incoloy alloy can be easily formed into a variety of shapes and sizes, and can be welded using a variety of methods. This makes it suitable for use in complex parts and structures.
Heat resistance
Incoloy alloy has excellent heat resistance, making it suitable for use in high-temperature applications such as heat exchangers, furnaces, and industrial ovens.
Types of Incoloy Alloy
Incoloy 800: This alloy contains approximately 32% nickel, 21% iron, and 21% chromium, along with small amounts of aluminum and titanium. It has good resistance to oxidation and corrosion and is commonly used in heat exchangers, steam generators, and chemical processing equipment.
Incoloy 825: This alloy contains approximately 47% nickel, 22% chromium, 15% iron, and small amounts of titanium, aluminum, and molybdenum. It has excellent resistance to pitting, crevice, and stress corrosion, and is commonly used in the chemical processing and petrochemical industries.
Incoloy 901: This alloy contains approximately 60% nickel, 23% chromium, 13% iron, and small amounts of aluminum, titanium, and zirconium. It has excellent resistance to oxidation and corrosion in high temperature and high pressure environments, and is commonly used in gas turbines, heat exchangers, and industrial furnaces.
Incoloy 925: This alloy contains approximately 55% nickel, 20% chromium, 12% iron, and small amounts of molybdenum, titanium, and aluminum. It has excellent resistance to pitting, crevice, and stress corrosion, as well as good strength and toughness, and is commonly used in the aerospace, defense, and medical industries.

Heat exchangers: Incoloy alloy is commonly used in the construction of heat exchangers, which are used in various industries such as power generation, chemical processing, and refining. Incoloy alloy can withstand high temperatures and corrosive environments, making it ideal for use in heat exchangers.
Chemical processing: Incoloy alloy is widely used in the chemical processing industry due to its excellent resistance to corrosion and high-temperature environments. It is used in the construction of vessels, tanks, and pipes that are used to transport and store chemicals.
Power generation: Incoloy alloy is used in the power generation industry, particularly in the construction of gas turbines, which are used to generate electricity. Incoloy alloy can withstand high temperatures and corrosive environments, making it ideal for use in gas turbines.
Aerospace: Incoloy alloy is used in the aerospace industry, particularly in the construction of aircraft engines and other high-temperature components. Incoloy alloy can withstand high temperatures and corrosive environments, making it ideal for use in the aerospace industry.
Medical: Incoloy alloy is used in the medical industry, particularly in the construction of medical devices such as pacemakers and implantable medical devices. Incoloy alloy is biocompatible and can withstand the harsh environment of the human body.
Incoloy alloy is a family of nickel-iron-chromium alloys that are known for their excellent resistance to corrosion and high-temperature environments. Here are some of the common components of Incoloy alloy.
Nickel: The primary component of Incoloy alloy is nickel, which typically makes up between 30% to 70% of the alloy. Nickel provides excellent resistance to oxidation and corrosion, as well as good strength and ductility.
Iron: Iron is another key component of Incoloy alloy, typically making up between 20% to 30% of the alloy. Iron provides good mechanical properties, such as strength and toughness, as well as improved weldability.
Chromium: Chromium is also a key component of Incoloy alloy, typically making up between 15% to 28% of the alloy. Chromium provides excellent resistance to oxidation and corrosion, as well as improved heat resistance.
Aluminum: Aluminum is typically added to Incoloy alloy in small amounts, typically less than 5%. Aluminum provides improved resistance to oxidation and improves the strength and toughness of the alloy.
Titanium: Titanium is also typically added to Incoloy alloy in small amounts, typically less than 5%. Titanium provides improved resistance to oxidation and improves the strength and toughness of the alloy.
Molybdenum: Molybdenum is sometimes added to Incoloy alloy in small amounts, typically less than 5%. Molybdenum provides improved resistance to pitting and crevice corrosion, particularly in reducing environments.
Process of Incoloy Alloy
The process of manufacturing Incoloy alloy typically involves several steps, including melting, casting, hot rolling, annealing, cold rolling, and finishing. Here is a general overview of the manufacturing process for Incoloy alloy.
Melting: The primary components of Incoloy alloy, such as nickel, iron, and chromium, are melted together in a furnace. Other alloying elements such as aluminum and titanium may also be added at this stage.
Casting: The molten alloy is poured into a mold to create a casting. The casting is then allowed to cool and solidify.
Hot rolling: The casting is heated to a high temperature and rolled into a sheet or bar. This process helps to improve the mechanical properties of the alloy and make it easier to work with.
Annealing: The hot rolled material is then annealed to improve its ductility and reduce its hardness. Annealing involves heating the material to a specific temperature and then allowing it to cool slowly.
Cold rolling: The annealed material is then cold rolled to improve its strength and finish. Cold rolling involves rolling the material at room temperature, which helps to improve its mechanical properties and surface finish.
Finishing: The final step in the manufacturing process is finishing, which may include processes such as polishing, cutting, and machining to create the desired shape and size of the finished product.

Incoloy alloy is known for its excellent resistance to corrosion and high-temperature environments, but proper maintenance and care are still important to ensure optimal performance and longevity. Here are some tips for maintaining Incoloy alloy.
Keep it clean: Regular cleaning can help to prevent the buildup of dirt, grime, and other contaminants that can cause corrosion and other forms of damage. Use a non-abrasive cleaner and avoid using acidic or alkaline cleaners that can damage the surface of the alloy.
Inspect regularly: Regular inspections can help to identify any signs of damage or corrosion early on, before they become more serious. Look for any signs of pitting, cracking, or other forms of surface damage.
Protect from the environment: Incoloy alloy is resistant to many forms of corrosion, but it can still be affected by certain environments, such as those containing high levels of chlorine or other corrosive agents. When possible, protect the alloy from these environments by using coatings or other forms of protection.
Handle with care: Incoloy alloy can be damaged by rough handling or contact with abrasive materials. When handling the alloy, use proper equipment and handling techniques to avoid damage.
Store properly: When not in use, store Incoloy alloy in a dry, clean environment away from corrosive agents and other materials that could cause damage.
How to Choose Incoloy Alloy Correctly
Choosing the correct Incoloy alloy requires careful consideration of the specific application and requirements, as well as an understanding of the properties and benefits of different alloy grades. Here are some tips for choosing Incoloy alloy correctly.
Identify the application requirements: The first step in choosing the correct Incoloy alloy is to identify the specific application requirements, such as temperature range, corrosive environment, mechanical properties, and fabrication requirements.
Evaluate the alloy properties: Different Incoloy alloy grades have different properties, such as varying amounts of nickel, iron, and chromium, as well as other alloying elements such as aluminum and titanium. Evaluate the properties of each alloy grade to determine which one is best suited for the specific application requirements.
Consult the material specifications: Consult the material specifications for each Incoloy alloy grade to determine its chemical composition, mechanical properties, and physical characteristics. This information can be found in technical data sheets or material specifications provided by the manufacturer.
Consider the cost: The cost of Incoloy alloy can vary depending on the specific grade and manufacturer. While it may be tempting to choose the least expensive option, it is important to consider the long-term performance and maintenance costs of the alloy in relation to the specific application requirements.
Consult with a material expert: If you are unsure about which Incoloy alloy to choose, consult with a material expert who can provide guidance based on their experience and knowledge of the various alloy grades and their properties.
What Is Difference Between Inconel and Incoloy?
Incoloy and Inconel are both nickel-based alloys, but there are some differences between the two
Composition
Incoloy is an alloy of nickel, iron, and chromium, while Inconel contains nickel, chromium, and usually aluminum and titanium.
Heat resistance
Both alloys have good heat resistance, but Inconel is generally considered to have better heat resistance than Incoloy.
Corrosion resistance
Incoloy has better resistance to high temperature oxidation and certain forms of corrosion, while Inconel has better resistance to other types of corrosion, such as pitting and crevice corrosion.
Applications
Incoloy is commonly used in the chemical processing, food processing, and paper industries, while Inconel is commonly used in the aerospace, power generation, and oil and gas industries.
What Is the Difference Between Incoloy and Titanium?
Incoloy and Titanium are both metals with unique properties, but they differ in several ways.
Composition: Incoloy is a nickel-iron-chromium alloy with additional elements such as aluminum and titanium. Titanium, on the other hand, is a metal element found in nature and is known for its high strength-to-weight ratio.
Corrosion resistance: Both Incoloy and titanium have excellent resistance to corrosion, but Incoloy is generally more resistant to oxidizing environments, while titanium is more resistant to reducing environments.
Heat resistance: Incoloy has better heat resistance and can withstand higher temperatures without losing its mechanical properties. Titanium, while also heat resistant, has a lower maximum service temperature.
Applications: Incoloy is commonly used in high-temperature, high-corrosion applications like chemical processing, gas turbines, and heat exchangers. Titanium, due to its high strength-to-weight ratio, is often used in aerospace, medical, and sporting goods applications.
Cost: Titanium is generally more expensive than Incoloy due to its unique properties and limited availability.
Weldability: Both Incoloy and Titanium can be welded, but they require different techniques and precautions. Incoloy can be welded using a variety of techniques, while welding Titanium requires specialized equipment and techniques to prevent contamination.
What Is the Melting Point of Incoloy Alloy?
The melting point of Incoloy alloy varies depending on the specific alloy grade. In general, Incoloy alloys have melting points in the range of 1300°C to 1400°C. However, it is important to note that the actual melting point can be affected by factors such as the specific alloy composition, heat treatment, and processing history.
Incoloy alloy can be fabricated using a variety of techniques, depending on the specific application requirements and the properties of the alloy grade. Here are some common fabrication techniques used for Incoloy alloy.
Hot rolling: Hot rolling is a process used to shape and size Incoloy alloy into bars, plates, or strips. The alloy is heated to a high temperature and then passed through a series of rolls to achieve the desired shape and size.
Cold working: Cold working involves shaping and forming the alloy at room temperature, often using techniques such as drawing, extruding, and spinning. This process can improve the mechanical properties of the alloy, such as strength and hardness.
Welding: Incoloy alloy can be welded using a variety of techniques, such as gas tungsten arc welding (GTAW), shielded metal arc welding (SMAW), and electron beam welding (EBW). It is important to select the appropriate filler metal and follow proper welding procedures to ensure good weld quality and performance.
Machining: Incoloy alloy can be machined using conventional techniques such as turning, drilling, and milling. However, due to its high strength and toughness, machining can be challenging and may require specialized tools and equipment.
Heat treatment: Heat treatment can be used to modify the microstructure of Incoloy alloy and enhance its mechanical properties. Common heat treatments include solution annealing, precipitation hardening, and stress relieving.
How Is Incoloy Alloy Welded or Joined?




Incoloy alloy can be welded or joined using a variety of techniques, depending on the specific application requirements and the properties of the alloy grade. Here are some common welding or joining techniques used for Incoloy alloy.
Gas tungsten arc welding (GTAW): GTAW is a commonly used welding technique for Incoloy alloy due to its ability to produce high-quality welds with minimal heat input. This technique is often used for thin sections or for applications where appearance and corrosion resistance are important.
Shielded metal arc welding (SMAW): SMAW is another commonly used welding technique for Incoloy alloy, especially for thicker sections or for applications where cost is a concern. This technique uses an electrode covered in a flux material to protect the weld area from contamination.
Laser welding: Laser welding is a high-energy welding technique that can be used to produce high-quality welds with minimal heat input. This technique is often used for applications where precision and speed are important.
Electron beam welding (EBW): EBW is a high-energy welding technique that can be used to produce high-quality welds with minimal heat input. This technique is often used for applications where high precision and cleanliness are required.
Brazing: Brazing is a joining technique that uses a filler metal with a melting point below that of the base materials to join them together. This technique can be used for applications where a strong, leak-tight joint is required.
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FAQ
Q: Is INCOLOY a superalloy?
Q: Is INCOLOY corrosion resistant?
Q: What is the difference between INCOLOY 825 and 800?
Q: What is the difference between hastelloy and INCOLOY?
Q: Should I use titanium or Incoloy immersion heater?
Q: Is Inconel 600 better than Incoloy 800?
Q: What is Incoloy used for?
As you can see, INCOLOY alloy 825 has been carefully produced to give it a range of properties that make it useful in the chemicals industry. It's also used in pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing and handling radioactive waste.
Q: What are the grades of Incoloy?
Q: What is the difference between Incoloy 800 and 840?
Q: What is the maximum temperature for incoloy 600?
The versatility of INCONEL alloy 600 has led to its use in a variety of applications involving temperatures from cryogenic to above 2000°F (1095°C).
Q: What is incoloy 800 used for?
Q: What material is INCOLOY?
Q: What is INCONEL versus INCOLOY?
Q: What is the most common INCOLOY?
Q: Is INCOLOY magnetic?
Q: Is nickel an Inconel?
Q: What is the difference between hastelloy and Incoloy?
Q: Is Inconel easy to machine?
Q: Why does Inconel crack?
Q: What is Incoloy 825 equivalent to?

















