| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
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| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
| Purity: | 50%-55% |
| Alloy: | Alloy |
| Type: | Inconel Alloy Bar |
| Powder: | Not Powder |
| Samples: |
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| Customization: |
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Audited Supplier Inconel 718 is a high-strength, nickel-based superalloy known for its excellent mechanical properties, high-temperature resistance, and corrosion resistance. Inconel 718 bars are commonly available in various diameters, lengths, and surface finishes, depending on customer requirements. These bars find applications in industries such as aerospace, oil and gas, chemical processing, and power generation, where high strength, exceptional resistance to elevated temperatures and corrosive environments are critical.
Applications:
Aerospace Industry: Inconel 718 rods are extensively used in the aerospace industry for applications such as gas turbine engine components, rocket motors, thrust reversers, combustion chambers, and structural parts. The high strength, creep resistance, and corrosion resistance of Inconel 718 make it suitable for withstanding high temperatures and harsh operating conditions.
Oil and Gas Industry: Inconel 718 rods find utility in the oil and gas industry for applications such as downhole tools, wellhead components, valves, and high-pressure pipeline fittings. The alloy's resistance to corrosive environments, including hydrogen sulfide (H2S), and its ability to maintain mechanical properties at elevated temperatures make it well-suited for these demanding applications.
Chemical Processing: Inconel 718 rods are employed in the chemical processing industry for equipment and components that come in contact with corrosive chemicals, acids, and high-temperature environments. They are used in reactors, heat exchangers, valves, pumps, and fittings, where their excellent corrosion resistance and mechanical strength are essential.
Power Generation: Inconel 718 rods are utilized in power generation applications, particularly in gas turbine and nuclear power plants. They are used in turbine blades, discs, casings, and other critical components subjected to high temperatures, high stresses, and corrosive environments. The alloy's well-balanced combination of strength, resistance to thermal fatigue, and oxidation resistance is crucial for these demanding applications.
Automotive Industry: Inconel 718 rods also find some applications in the automotive industry, particularly in high-performance engines and exhaust systems. They are used for valve components, turbocharger parts, and exhaust valves where high-temperature resistance and strength are essential.
Medical Industry: Inconel 718 rods are occasionally used in the medical field for certain implants and prosthetic devices. The alloy's biocompatibility, resistance to corrosion, and high strength make it suitable for specific medical applications.
| Item | Inconel 600 | Inconel 601 | Inconel 617 | Inconel 625 | Inconel 690 | Inconel 718 | Inconel X750 | Inconel 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 | ≥7.2 | 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 | -- | -- | -- | -- | -- |
Raw Material Selection: The production of Inconel 718 bars begins with careful selection and procurement of high-quality raw materials. This includes pure nickel, chromium, iron, molybdenum, niobium, titanium, and other alloying elements. The precise composition may vary depending on specific requirements and industry standards.
Melting and Casting: The selected raw materials are melted in an electric arc furnace or a vacuum induction furnace under controlled conditions. The molten metal is then refined to remove impurities before being cast into various forms, including ingots or billets.
Hot Working: The cast ingots or billets are heated to a specific temperature and then subjected to hot working processes, such as hot rolling or forging. This helps to reduce the size, refine the microstructure, and shape the bars.
Heat Treatment: After hot working, the Inconel 718 bars undergo a heat treatment process called solution annealing. This involves heating the bars to a high temperature followed by rapid cooling to enhance their mechanical properties, such as strength and toughness, and relieve any residual stresses.
Cold Working: The solution-annealed bars can be further processed through cold working techniques, such as cold rolling or drawing, to achieve desired dimensions, surface finish, and mechanical properties. Cold working increases the strength and hardness of the bars while retaining their ductility.
Finishing Processes: The cold-worked bars are then subjected to additional finishing processes to meet specific customer requirements. These may include straightening, polishing, cutting to length, chamfering, and surface treatments.
Quality Control: Throughout the production process, rigorous quality control measures are implemented to ensure the dimensional accuracy, chemical composition, mechanical properties, and surface integrity of the Inconel 718 bars. Non-destructive testing methods, such as ultrasonic testing or eddy current testing, may be employed to detect any defects or irregularities.
Packaging and Shipping: Once the bars pass all quality checks, they are carefully packaged to prevent damage during transportation. They are usually bundled or packed in protective materials to maintain their integrity.
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