Customization: | Available |
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Application: | Aviation, Electronics, Industrial, Medical, Chemical |
Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Inconel 601 is a nickel-chromium alloy known for its exceptional resistance to high-temperature oxidation and corrosion. Here's a detailed description of its key properties:
Chemical Composition: Inconel 601 primarily consists of nickel, chromium, and iron, with small additions of aluminum and other elements. The typical composition includes approximately 60% nickel, 23% chromium, 1.4% aluminum, and traces of other elements.
High-Temperature Strength: It exhibits remarkable strength and retains its mechanical properties at elevated temperatures, making it suitable for use in applications where heat resistance is critical.
Oxidation Resistance: One of the standout features of Inconel 601 is its exceptional resistance to oxidation at high temperatures. It forms a protective oxide layer on the surface, which prevents further oxidation even in challenging environments.
Corrosion Resistance: In addition to its resistance to oxidation, Inconel 601 offers good resistance to corrosion in a wide range of acidic and alkaline environments. This makes it suitable for applications in chemical processing, furnace components, and marine environments.
Creep Resistance: Inconel 601 exhibits excellent resistance to creep deformation, allowing it to maintain its shape and integrity even under prolonged exposure to high temperatures and mechanical stress.
Thermal Stability: It retains its mechanical properties over a wide temperature range, from cryogenic temperatures up to approximately 1200°C (2200°F).
Weldability: Inconel 601 can be welded using conventional welding techniques such as gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW). However, care must be taken to avoid excessive heat input, which can lead to the formation of detrimental precipitates and reduced mechanical properties.
Parameter | Value |
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Material | Inconel 601 |
Composition | Nickel (Ni): 58%-63%, Chromium (Cr): ~21%, Molybdenum (Mo): ~9%, Niobium (Nb): ~3.6%, Iron (Fe): ~5% |
Density | 8.1 g/cm^3 |
Melting Point | 1320-1370°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: Due to its unique combination of properties, Inconel 601 finds numerous applications in industries such as aerospace, chemical processing, thermal processing, heat treatment, power generation, and pollution control. Typical applications include furnace components, radiant tubes, muffles, baskets, catalyst support grids, and jet engine exhaust syst.
Raw Material Preparation: High-quality raw materials, primarily nickel, chromium, iron, aluminum, and other alloying elements, are carefully selected and sourced. These materials are typically in the form of pre-alloyed powders or ingots.
Melting: The raw materials are melted together in an electric arc furnace or a vacuum induction furnace at temperatures exceeding 2500°F (1370°C). This high-temperature melting process ensures complete alloying and homogenization of the molten metal.
Casting: Once the alloy composition is thoroughly mixed, the molten metal is poured into cylindrical molds to form ingots or billets. These initial forms will later be processed into rods.
Hot Working: The ingots or billets are heated to a suitable temperature and then subjected to hot working processes such as forging or rolling. This helps to shape the metal into the desired rod dimensions while refining the microstructure and improving mechanical properties.
Intermediate Annealing: Intermediate annealing may be performed to relieve internal stresses and refine the grain structure of the material. This step is particularly important for maintaining the desired properties of the alloy during further processing.
Cold Drawing: The hot-worked rods are then subjected to cold drawing processes, where they are pulled through a series of dies at room temperature to achieve the desired diameter and surface finish. This cold working process also enhances the mechanical properties of the rods.
Heat Treatment: After cold drawing, the rods may undergo heat treatment processes such as annealing or solution heat treatment to further optimize their microstructure and mechanical properties. Heat treatment also helps to relieve residual stresses and improve dimensional stability.
Final Inspection and Testing: The finished rods undergo rigorous quality control measures, including dimensional inspection, chemical analysis, and mechanical testing, to ensure they meet the specified requirements and standards for composition, dimensions, and performance.
Finishing and Packaging: Once the rods pass inspection, they are finished to remove any surface imperfections and then packaged according to customer specifications. Proper packaging ensures the rods are protected during transportation and storage.