| Customization: | Available |
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| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Incoloy tubes are corrosion-resistant alloy tubes made primarily from nickel, chromium, and iron, with additional alloying elements such as molybdenum, copper, and titanium. These tubes offer exceptional resistance to high temperatures and aggressive environments, making them ideal for applications in industries such as chemical processing, petrochemical, oil and gas, aerospace, and power generation.
Key characteristics of Incoloy tubes include:
Corrosion Resistance: Incoloy tubes exhibit outstanding resistance to corrosion in a wide range of corrosive environments, including acids, alkaline solutions, seawater, and high-temperature gases. This corrosion resistance is due to the alloy's high chromium content and the formation of a protective oxide layer on the surface.
High-Temperature Strength: Incoloy tubes retain their mechanical strength and integrity at elevated temperatures, making them suitable for use in high-temperature applications such as heat exchangers, furnaces, and boilers. The alloy's solid solution strengthening and precipitation hardening mechanisms contribute to its high-temperature strength.
Overall, Incoloy tubes offer a combination of corrosion resistance, high-temperature strength, and mechanical properties, making them a reliable choice for critical applications in challenging environments.
Excellent Mechanical Properties: Incoloy tubes offer excellent mechanical properties, including high tensile strength, fatigue resistance, and toughness, even at elevated temperatures. This enables them to withstand mechanical stresses and pressures in demanding industrial environments.
Good Weldability: Incoloy tubes can be readily welded using various welding techniques, including TIG (tungsten inert gas), MIG (metal inert gas), and submerged arc welding. Proper welding procedures and post-weld heat treatment ensure strong, leak-free joints with minimal risk of cracking or corrosion.
Versatility: Incoloy tubes are available in various grades and sizes to suit different application requirements. Common grades include Incoloy 800, 800H, 800HT, 825, and others, each offering specific properties tailored to specific environments and operating conditions.
Fabrication Flexibility: Incoloy tubes can be easily fabricated into complex shapes, including straight lengths, coils, U-bends, and serpentine coils, to accommodate the design needs of heat exchangers, condensers, boilers, and other equipment.
Regulatory Compliance: Incoloy tubes meet industry standards and specifications such as ASTM (American Society for Testing and Materials), ASME (American Society of Mechanical Engineers), and DIN (Deutsches Institut für Normung), ensuring compliance with safety, quality, and performance requirements.
| Alloy | % | Ni | Cr | Fe | C | Mn | Si | Cu | Mo | Al | Ti | P | Su |
| 925 | Max | 26 | 19.5 | margin | - | - | - | 1.5 | 2.5 | - | 0.6 | - | - |
| Min | 42 | 23 | 0.05 | 1 | 0.5 | 3 | 3.5 | 0.2 | 1.2 | 0.03 | 0.03 |
Incoloy tubes find applications in various industries where corrosion resistance, high-temperature strength, and durability are essential. Some common applications include:
Chemical Processing: Incoloy tubes are used in chemical processing plants for heat exchangers, reactors, and piping systems handling corrosive chemicals such as acids, alkalis, and solvents.
Petrochemical Industry: Incoloy tubes are employed in refineries and petrochemical plants for processes involving high temperatures and corrosive environments, including distillation, cracking, and sulfur recovery units.
Overall, Incoloy tubes play a crucial role in various industries where the combination of corrosion resistance, high-temperature strength, and reliability are paramount for efficient and safe operations.
Oil and Gas: Incoloy tubes are used in offshore and onshore oil and gas facilities for equipment such as heat exchangers, condensers, piping, and downhole components subjected to corrosive fluids and high-pressure conditions.
Power Generation: Incoloy tubes are utilized in power plants for boilers, superheaters, heat exchangers, and steam condensers operating at high temperatures and pressures, as well as in nuclear power plants for reactor components.
Aerospace: Incoloy tubes are employed in aerospace applications for components subjected to high temperatures and corrosive atmospheres, such as exhaust systems, thrust reversers, and turbine engine components.
Heat Treatment Furnaces: Incoloy tubes are used in heat treatment furnaces for annealing, brazing, and tempering processes where high temperatures and controlled atmospheres are required.
Industrial Furnaces: Incoloy tubes are utilized in industrial furnaces for heating applications, including annealing, carburizing, nitriding, and sintering processes in industries such as automotive, aerospace, and metallurgy.
Food Processing: Incoloy tubes are employed in food processing equipment for heating and cooling applications where resistance to corrosion and sanitation requirements are critical.
Water Desalination: Incoloy tubes are used in desalination plants for evaporators, condensers, and heat exchangers handling seawater or brine solutions.
Pharmaceutical Industry: Incoloy tubes find applications in pharmaceutical manufacturing processes requiring corrosion-resistant equipment for handling acids, bases, and solvents.
The production process for Incoloy tubes typically involves several stages, including:
Raw Material Selection: High-quality nickel, iron, and chromium alloys are selected as raw materials for producing Incoloy tubes. These alloys are chosen for their corrosion resistance, high-temperature strength, and other desired properties.
Melting and Alloying: The raw materials are melted in a furnace at extremely high temperatures. During the melting process, other alloying elements such as molybdenum, copper, and titanium may be added to achieve specific properties required for the Incoloy alloy.
Tube Forming: The molten metal is then poured into molds to form ingots or billets of the desired size and shape. These ingots or billets are then hot rolled or extruded into seamless tubes or welded tubes, depending on the manufacturing process chosen.
Cold Working (Optional): In some cases, the tubes may undergo cold working processes such as cold drawing or cold pilgering to achieve the desired dimensions, surface finish, and mechanical properties.
Heat Treatment: The tubes are subjected to heat treatment processes such as annealing, solution annealing, or stress relieving to improve their mechanical properties, dimensional stability, and corrosion resistance.
Finishing Operations: After heat treatment, the tubes may undergo various finishing operations such as straightening, cutting, end facing, and surface polishing to meet the specified requirements for dimensional accuracy and surface quality.
Testing and Quality Control: Incoloy tubes undergo rigorous testing to ensure they meet the required standards and specifications. This may include non-destructive testing methods such as ultrasonic testing, eddy current testing, and hydrostatic testing, as well as chemical composition analysis and mechanical property testing.
Surface Treatment (Optional): Depending on the application, the tubes may undergo surface treatments such as pickling, passivation, or coating to further enhance their corrosion resistance or improve their appearance.
Packaging and Shipping: Once the tubes pass all quality control checks, they are carefully packaged to prevent damage during transportation and shipped to customers or distributors for use in various industries.
Overall, the production process for Incoloy tubes involves careful selection of raw materials, precise manufacturing techniques, stringent quality control measures, and optional surface treatments to produce high-quality tubes with excellent corrosion resistance and mechanical properties.
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