| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Inconel 617 rods are solid cylindrical bars made from the nickel-chromium-cobalt-molybdenum alloy known as Inconel 617. These rods are engineered to provide exceptional performance in high-temperature environments, offering excellent resistance to oxidation, corrosion, and creep at elevated temperatures. Here's a detailed description of Inconel 617 rods:
Material Composition: Inconel 617 rods are primarily composed of nickel (Ni), chromium (Cr), cobalt (Co), and molybdenum (Mo), along with small amounts of other elements such as aluminum, titanium, and iron. The precise composition is carefully controlled to achieve the desired mechanical and chemical properties.
High-Temperature Resistance: Inconel 617 rods are designed to withstand extreme temperatures, making them ideal for use in applications where exposure to heat is prevalent. They retain their strength and integrity at temperatures ranging from cryogenic levels up to approximately 1200°C (2200°F).
Corrosion and Oxidation Resistance: Inconel 617 rods exhibit excellent resistance to both corrosion and oxidation, even in harsh environments such as those containing sulfur, carbon dioxide, or oxygen. This corrosion resistance makes them suitable for use in chemical processing, power generation, and aerospace applications.
Mechanical Properties: Inconel 617 rods possess high tensile strength, yielding strength, and creep resistance, allowing them to withstand mechanical stresses and loads at elevated temperatures. They also maintain good ductility and toughness, enabling them to be machined, forged, and welded into various shapes and components.
Applications: Inconel 617 rods find diverse applications across industries such as aerospace, gas turbine engines, petrochemical processing, nuclear reactors, and industrial heating equipment. They are used for fabricating components such as turbine blades, combustion chambers, heat exchangers, furnace fixtures, and high-temperature fasteners.
Sizes and Dimensions: Inconel 617 rods are available in various sizes and dimensions to suit different application requirements. Common diameters range from a few millimeters to several inches, while lengths can be customized according to specific project needs.
Surface Finish: Inconel 617 rods typically feature a smooth surface finish, free from defects or imperfections that could compromise their performance or integrity. Surface treatments such as polishing or passivation may be applied to enhance corrosion resistance or improve aesthetics.
| Parameter | Value |
|---|---|
| Material | Inconel 617 |
| Composition | Nickel (Ni): 76%, Chromium (Cr): 21%, Iron (Fe): 1.5%, Molybdenum (Mo): 1.5%, |
| Density | 8.4 g/cm^3 |
| Melting Point | 1330-1380°C |
| Tensile Strength (Room Temperature) | 600-650 MPa |
| Yield Strength (0.2% offset) | 300MPa |
| Elongation at Break | 30% |
| Hardness (HRC) | 65-95 |
| Thermal expansion coefficient (24-100ºC)10-6×m/m°C |
13.75 |
| Thermal Conductivity | 12.7 W/m·K at 21°C |
| Operating temperature (°C) |
-200~ +400 |
| Standard | ASTM B166 |
| 1180ºC | 1180ºC |
Applications:
Aerospace Industry: Inconel rods are used in aerospace applications for manufacturing components such as engine turbine blades, combustion chambers, exhaust systems, and structural parts. Their ability to withstand high temperatures and harsh environments makes them essential for jet engines, rocket engines, and other aerospace propulsion systems.
Petrochemical Industry: Inconel rods are utilized in the petrochemical industry for equipment exposed to corrosive environments, high temperatures, and pressure. They are employed in the fabrication of heat exchangers, reactors, piping systems, valves, and fittings used in refining, chemical processing, and oil and gas production facilities.
Power Generation: Inconel rods are essential for power generation applications, including gas turbines, steam turbines, and nuclear power plants. They are used to manufacture components such as turbine blades, turbine discs, boiler tubes, and heat exchanger tubing, where they provide excellent resistance to high temperatures and corrosion.
Chemical Processing: Inconel rods are employed in chemical processing equipment where resistance to corrosion and high temperatures is critical. They are used in the construction of reactors, vessels, pumps, valves, and piping systems handling corrosive chemicals, acids, and solvents.
Heat Treatment Furnaces: Inconel rods are used in the fabrication of fixtures, heating elements, and furnace components for high-temperature heat treatment processes. Their resistance to oxidation and creep deformation makes them suitable for use in heat treating furnaces, annealing furnaces, and industrial ovens.
Automotive Industry: Inconel rods are used in high-performance automotive applications, particularly in exhaust systems and turbochargers. Their ability to withstand the high temperatures and corrosive gases produced by combustion engines makes them ideal for improving engine performance and durability.
Marine Applications: Inconel rods are utilized in marine environments where corrosion resistance is essential, such as in offshore oil rigs, seawater desalination plants, and shipbuilding. They are used in components exposed to saltwater, such as marine exhaust systems, valves, and pumps.
Medical Devices: Inconel rods are used in certain medical applications where resistance to corrosion and biocompatibility are required. They may be used in the manufacture of implants, surgical instruments, and medical devices subjected to sterilization processes.
The production process of Inconel rods involves several steps, including melting, casting, hot rolling, cold drawing, heat treatment, and finishing. Here's an overview of each step:
Melting: The process begins with the melting of raw materials such as nickel, chromium, iron, and other alloying elements in an electric arc furnace or vacuum induction furnace. The precise composition of the alloy is crucial to achieving the desired properties of the final product.
Casting: Once the molten alloy reaches the desired composition, it is poured into molds to solidify into ingots or billets. This step may involve various casting techniques such as continuous casting or traditional ingot casting.Throughout the production process, strict quality control measures are implemented to monitor and maintain the chemical composition, mechanical properties, and dimensional accuracy of the Inconel rods. Advanced testing techniques such as spectroscopy, microscopy, and mechanical testing are used to verify the quality of the final product before it is shipped to customers.
Hot Rolling: The solidified ingots or billets are heated to high temperatures and then passed through a series of rolling mills to reduce their thickness and form them into intermediate shapes such as bars or rods. Hot rolling helps refine the microstructure of the material and improve its mechanical properties.
Cold Drawing: After hot rolling, the intermediate products are further processed through cold drawing or cold rolling to achieve the final dimensions and surface finish. Cold drawing involves pulling the material through a series of dies at room temperature to reduce its diameter and improve its dimensional accuracy and surface quality.
Heat Treatment: Inconel rods undergo heat treatment processes such as annealing, solution treatment, and aging to optimize their microstructure and mechanical properties. Annealing involves heating the material to a specific temperature and then slowly cooling it to relieve internal stresses and improve its ductility. Solution treatment is performed to dissolve any precipitates and homogenize the alloy's composition, followed by quenching to lock in the desired microstructure. Aging or precipitation hardening is then carried out to further strengthen the material through the formation of fine precipitates.
Finishing: The final step in the production process involves finishing operations such as straightening, cutting, grinding, polishing, and inspection to ensure that the Inconel rods meet the required dimensional tolerances, surface finish specifications, and quality standards.
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