| Customization: | Available |
|---|---|
| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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Inconel 825 strip is a thin, flat product made from the nickel-iron-chromium alloy known as Inconel 825. This alloy typically contains nickel, chromium, iron, and molybdenum, along with small amounts of other elements such as copper, titanium, and aluminum. Here's a detailed description of Inconel 825 strip:
Composition: Inconel 825 strip is primarily composed of nickel (Ni), which provides excellent corrosion resistance, especially in acidic environments. It also contains significant amounts of chromium (Cr) and iron (Fe), which contribute to its resistance to oxidation and high-temperature strength. Additionally, the presence of molybdenum (Mo) enhances its resistance to pitting and crevice corrosion.
Corrosion Resistance: One of the key characteristics of Inconel 825 strip is its exceptional resistance to corrosion, particularly in harsh environments containing sulfuric acid, phosphoric acid, sulfur-containing gases, and chloride ions. This makes it suitable for applications in chemical processing, pollution control, and marine engineering.
Overall, Inconel 825 strip offers excellent corrosion resistance, high-temperature performance, weldability, and formability, making it a versatile material for demanding industrial applications.
High-Temperature Performance: Inconel 825 strip exhibits good mechanical properties and retains its strength at elevated temperatures, making it suitable for use in high-temperature applications such as heat treatment furnaces, exhaust systems, and aerospace components.
Weldability: Inconel 825 strip can be easily welded using conventional welding techniques such as gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW). This allows for the fabrication of complex structures and components.
Formability: The strip form of Inconel 825 offers flexibility and ease of fabrication, allowing it to be formed into various shapes and sizes to meet specific application requirements. It can be cold-worked or hot-worked to achieve the desired dimensions and properties.
Surface Finish: Inconel 825 strip typically has a smooth surface finish, which is important for applications where surface quality is critical, such as in aerospace and pharmaceutical industries.
Applications: Inconel 825 strip finds applications in a wide range of industries including chemical processing, oil and gas, marine engineering, aerospace, pharmaceutical, and food processing. It is used in equipment such as heat exchangers, reactors, piping systems, tubing, and pollution control devices.
| Item | Inconel 600 | Inconel | Inconel 617 | Inconel | Inconel | Inconel | Inconel | Inconel |
| 601 | 625 | 690 | 718 | X750 | 825 | |||
| C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
| Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
| Fe | 6~10 | rest | ≤3 | rest | 7~11 | rest | 5~9 | ≥22 |
| P | ≤0.015 | ≤0.02 | ≤0.015 | -- | -- | -- | -- | -- |
| S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
| Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
| Cu | ≤0.5 | ≤1 | -- | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
| Ni | ≥72 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
| Co | -- | -- | 10~15 | ≤10 | -- | ≤1 | ≤1 | -- |
| Al | -- | 1-1.7 | 0.8-1.5 | ≤0.8 | -- | 0.2-0.8 | 0.4-1 | ≤0.2 |
| Ti | -- | -- | ≤0.6 | ≤1.15 | -- | -- | 2.25-2.75 | 0.6-1.2 |
| Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
| Nb+Ta | -- | -- | -- | 4.75-5.5 | -- | 4.75-5.5 | 0.7-1.2 | -- |
| Mo | -- | -- | 8~10 | 2.8-3.3 | -- | 2.8-3.3 | -- | 2.5-3.5 |
| B | -- | -- | ≤0.006 | -- | -- | -- | -- | -- |
Inconel 825 strip finds application in various industries due to its unique properties. Here are some common applications:
Chemical Processing: Inconel 825 strip is widely used in chemical processing equipment such as reactors, vessels, and piping systems due to its exceptional corrosion resistance to sulfuric acid, phosphoric acid, and other aggressive chemicals.
Oil and Gas Industry: It is utilized in oil and gas extraction and processing equipment, including tubing, valves, and fittings, where resistance to corrosive environments and high temperatures is crucial.
Marine Engineering: Inconel 825 strip is employed in marine applications such as seawater desalination plants, offshore platforms, and ship components due to its resistance to corrosion in marine environments.
Aerospace: Inconel 825 strip is used in aerospace applications where corrosion resistance and high-temperature performance are essential, such as in aircraft exhaust systems, engine components, and heat exchangers.
Pharmaceutical Industry: It is utilized in pharmaceutical manufacturing equipment where cleanliness, corrosion resistance, and high-temperature stability are required, such as in reactors, sterilizers, and processing vessels.
Food Processing: Inconel 825 strip may be used in food processing equipment such as heat exchangers, evaporators, and storage tanks, where corrosion resistance to food acids and sanitizing agents is necessary.
Pollution Control: It finds application in pollution control devices such as scrubbers, flue gas desulfurization systems, and exhaust gas treatment equipment due to its resistance to acidic gases and high temperatures.
Heat Treatment Industry: Inconel 825 strip is used in heat treatment furnaces and equipment where high-temperature strength and resistance to oxidation are required.
Overall, the versatility, corrosion resistance, high-temperature performance, and formability of Inconel 825 strip make it suitable for a wide range of demanding industrial applications across various sectors.
The production process of Inconel 825 wire involves several steps:
Melting: The process begins with the melting of the raw materials, typically nickel, chromium, and small amounts of other elements such as aluminum and titanium, in a vacuum induction furnace or an electric arc furnace. The precise composition is crucial to achieving the desired properties of the final product.
Casting: Once the alloy is molten and properly mixed, it is cast into ingots or billets using molds. This step ensures the alloy's initial form and size before further processing.
Hot Working: The cast ingots or billets are then subjected to hot working processes such as forging or rolling. This step reduces the cross-sectional area of the material and refines its microstructure, improving its mechanical properties and homogeneity.
Annealing: After hot working, the material undergoes annealing to relieve internal stresses and improve its ductility and toughness. Annealing typically involves heating the material to a specific temperature and holding it for a certain duration before slowly cooling it down.
Cold Drawing: The annealed material is then cold drawn through a series of dies to achieve the desired wire diameter and dimensional accuracy. Cold drawing further refines the microstructure, increases the wire's strength, and improves its surface finish.
Intermediate Annealing (Optional): Depending on the specific requirements of the application and the desired properties of the final product, intermediate annealing may be performed between cold drawing steps to maintain ductility and prevent excessive work hardening.
Final Annealing: Once the desired wire size and properties are achieved, the wire may undergo a final annealing process to ensure uniformity and stability of its microstructure and mechanical properties.
Surface Treatment (Optional): In some cases, the wire may undergo surface treatments such as pickling, passivation, or coating to improve its corrosion resistance or surface finish.
Quality Control: Throughout the production process, rigorous quality control measures are implemented to ensure that the final product meets the required specifications and standards for mechanical properties, dimensional accuracy, and surface finish.
Packaging and Shipping: The finished Inconel 825 wire is then packaged according to customer requirements and shipped to end-users or distributors for further processing or direct use in various applications.
Overall, the production process of Inconel 825 wire involves a combination of melting, hot working, annealing, cold drawing, and quality control steps to achieve the desired properties and quality of the final product.
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