Inconel Alloys are a family of nickel and chromium based high temperature alloys known for their excellent resistance to heat, corrosion and high strength.
Incoloy 800 is a high-temperature alloy belonging to the nickel-iron-chromium alloy series, which is mainly used in applications requiring high-temperature and corrosion resistance. It is widely used in the petrochemical, energy and chemical processing industries for its good high temperature performance and corrosion resistance.
Composition
Nickel (Ni): 30-35 per cent
Iron (Fe): balance
Chromium (Cr): 19-23 per cent
Aluminium (Al): 0.15-0.60%
Carbon (C): ≤ 0.10%
Manganese (Mn): ≤ 1.0%
Silicon (Si): ≤ 1.0%
Performance
High Temperature Resistance: Maintains good strength and stability at temperatures up to 1000°C (1832°F), suitable for high temperature processes.
Corrosion resistance: good oxidation resistance and corrosion resistance, especially in air and neutral media performance.
Creep resistance: good creep resistance at high temperatures, suitable for long periods of high temperature use.
Weldability: good weldability, suitable for manufacturing complex structures and components.
Applications
Petrochemical: used in chemical reactors, pipelines, heat exchangers, etc., especially in high temperature and corrosive environments.
Energy: Used in boilers and furnace tubes of power plants, subject to high temperature and high pressure environments.
Chemical Processing: For the treatment of various chemical media, especially acidic and alkaline media.
Heat exchangers: for high temperature heat exchange applications.
Incoloy 800H
Incoloy 800H is an improved version of Incoloy 800 specifically designed to withstand higher temperatures and more stringent application requirements. It is an alloy based on Incoloy 800, but with higher strength and better high-temperature properties.
Composition
Nickel (Ni): 30-35 percent
Iron (Fe): Balance
Chromium (Cr): 19-23 percent
Carbon (C): 0.05-0.10 per cent
Aluminium (Al): 0.15-0.60
Titanium (Ti): 0.60-1.20%
Manganese (Mn): ≤ 1.0%
Silicon (Si): ≤ 1.0%
Field of application
High Temperature Resistance: Maintains good strength and stability at temperatures up to 1150°C (2100°F). Suitable for extreme high temperature environments.
Corrosion resistance: excellent oxidation resistance and corrosion resistance, especially in the oxidising environment at high temperatures.
Creep resistance: excellent creep resistance, suitable for long time high temperature load environment.
Weldability: good welding performance, suitable for the manufacture of complex structures and high temperature components.
Incoloy 800HT
A further improved version of Incoloy 800H, designed to provide increased strength and durability in extreme high temperature environments. It is primarily used in applications requiring extreme heat resistance and high temperature stability.
Composition
Nickel (Ni): 30-35 percent
Iron (Fe): Balance
Chromium (Cr): 19-23 per cent
Carbon (C): 0.06-0.10 per cent
Aluminium (Al): 0.15-0.60
Titanium (Ti): 0.60-1.20%
Manganese (Mn): ≤ 1.0%
Silicon (Si): ≤ 1.0%
Performance
High Temperature Resistance: Maintains excellent performance at temperatures up to 1200°C (2192°F). Suitable for use in extreme high-temperature environments.
Corrosion Resistance: Provides good resistance to oxidation and corrosion, especially in oxidising environments at high temperatures.
Creep resistance: excellent creep resistance, suitable for long time high temperature load application.
Weldability: Good weldability, suitable for the manufacture of complex structures and high temperature components.
Fields of application
High-temperature furnace tubes: for high-temperature equipment such as industrial furnace tubes, heating furnaces and heat exchangers.
Energy industry: for power plant boilers, steam generators and high-temperature operating components.
Petrochemical industry: for petroleum refining equipment, chemical reactors and treatment systems.
Chemical Processing: In high temperature chemical processing equipment and process applications.
Incoloy 825
Incoloy 825 is a nickel-iron-chromium alloy used in a wide variety of industrial applications for its excellent corrosion and high temperature resistance. It performs well in acidic and oxidising environments and is suitable for applications requiring high corrosion and temperature resistance.
Composition
Nickel (Ni): 38-46 per cent
Iron (Fe): balance
Chromium (Cr): 19.5-23.5 per cent
Molybdenum (Mo): 2.5-3.5 per cent
Copper (Cu): 1.0-2.0%
Silicon (Si): ≤ 0.50 per cent
Manganese (Mn): ≤ 1.0%
Carbon (C): ≤ 0.05%
Properties
Corrosion resistance: Excellent corrosion resistance, especially in acidic environments such as sulphuric acid, phosphoric acid, fluoride and marine environments. The presence of molybdenum and copper enhances the resistance to these corrosive media.
HIGH TEMPERATURE RESISTANCE: Good high temperature performance with stability up to 550°C (1022°F) for medium to high temperature environments.
Oxidation Resistance: Excellent oxidation resistance, suitable for high temperature oxidising environments.
Weldability: Good weldability for complex components and structures.
Applications
Petrochemical: Used in petroleum refining and chemical processing equipment, such as reactors, pipelines and tanks.
Offshore: For offshore platforms, marine structures and equipment due to its excellent corrosion resistance.
Chemical Processing: Used in acidic media and corrosive environments, such as pickling tanks and chemical reactors.
Energy industry: boiler parts of power plants, heat exchangers, etc.’
Incoloy 925
Incoloy 925 is a high-strength nickel-iron-chromium alloy especially suited for use in high-temperature and corrosive environments. It offers improved strength and excellent corrosion resistance for applications requiring extreme conditions.
Composition
Nickel (Ni): 24-26 per cent
Iron (Fe): Balance
Chromium (Cr): 20-22 per cent
Molybdenum (Mo): 6.0-7.0 per cent
Titanium (Ti): 0.5-1.0%
Aluminium (Al): ≤ 0.20%
Silicon (Si): ≤ 0.50
Manganese (Mn): ≤ 0.50
Carbon (C): ≤ 0.03%
Performance
Corrosion resistance: excellent corrosion resistance, especially in acidic media and chlorinated environment, such as seawater and acid.
High temperature resistance: maintain good strength and stability in high temperature environments, can be used in temperatures up to 700 ° C (1292 ° F).
Creep Resistance: Good creep resistance for long periods of high temperature loading.
Mechanical Properties: High strength to withstand high mechanical loads.
Application Areas
Petrochemical: High strength components for the oil and gas industry, such as downhole equipment, pipelines and reactors.
Offshore: For offshore platforms, subsea equipment and marine structures due to its excellent corrosion resistance in seawater.
Chemical Processing: Chemical reactors, acidic media treatment equipment, etc.
Energy industry: high-temperature components of power plants, boilers and heat exchangers.
