| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
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| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
| Purity: | 58% |
| Alloy: | Alloy |
| Type: | Nickel Bar |
| Powder: | Not Powder |
| Samples: |
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| Customization: |
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Inconel 625 is a nickel-based superalloy known for its excellent corrosion resistance, high strength, and good fabricability. When formed into strips, it retains these desirable properties and finds various applications across industries. Here's a detailed description:
Composition: Inconel 625 primarily consists of nickel (around 58%), chromium (20-23%), molybdenum (8-10%), and niobium (3.15-4.15%). The alloy also contains small amounts of iron, tantalum, and other elements, contributing to its unique properties.
Properties:
Corrosion Resistance: Inconel 625 offers outstanding resistance to a wide range of corrosive environments, including seawater, acidic solutions, and oxidizing and reducing conditions.
High Temperature Strength: It maintains its strength and mechanical properties at elevated temperatures, making it suitable for high-temperature applications.
Excellent Fatigue Strength: Inconel 625 exhibits excellent fatigue strength, making it suitable for cyclically loaded applications.
Good Weldability: The alloy can be readily welded using conventional methods without significant loss of properties.
Overall, Inconel 625 rods offer a combination of properties that make them highly versatile for use in demanding environments across various industries.
| 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 | -- | -- | -- | -- | -- |
Applications:
Aerospace: Inconel 625 rod are used in aircraft ducting systems, engine exhaust systems, and turbine seals due to its high strength and corrosion resistance.
Chemical Processing: It is employed in chemical processing equipment, such as reactors, vessels, and piping systems, where resistance to corrosive chemicals is essential.
Marine Applications: Due to its excellent resistance to seawater and brine, Inconel 625 is used in marine applications like seawater piping systems, boat and ship components.
Oil and Gas Industry: It is used in downhole and surface wellhead equipment, as well as in components like valves and tubing, where resistance to corrosive and high-pressure environments is required.
Power Generation: Inconel 625 rods find applications in power generation equipment, including steam turbines, boiler systems, and heat exchangers, due to its high-temperature strength and corrosion resistance.
Medical and Chemical: The alloy is used in medical devices, chemical processing equipment, and pharmaceutical manufacturing due to its biocompatibility and resistance to chemical corrosion.
High Fabricability: Inconel 625 can be easily formed, machined, and fabricated using standard techniques.
The production of Inconel 625 rods follows a similar process to that of strips, with some specific variations to meet the requirements of rod manufacturing. Here is a detailed description of the production process for Inconel 625 rods:
Raw Material Selection: The process begins with the careful selection of high-quality raw materials such as nickel, chromium, molybdenum, niobium, and other alloying elements to meet the desired composition for Inconel 625.
Melting and Casting: The selected raw materials are melted in a specialized furnace, such as a vacuum induction furnace or an electric arc furnace, to form a molten alloy with the required chemistry. The molten alloy is then cast into ingots or billets through a casting process.
Hot Rolling: The casting ingots or billets are reheated to high temperatures and then hot rolled through a series of rolling mills to form the rods. The hot rolling process helps to reduce the cross-sectional area of the material, improve its grain structure, and achieve the desired diameter of the rod.
Cold Drawing: After hot rolling, the rods undergo cold drawing, a process that involves pulling the hot-rolled rod through a series of dies to further reduce its diameter to the specified size. Cold drawing helps to improve the dimensional accuracy, surface finish, and mechanical properties of the rod.
Annealing: Cold-drawn rods might undergo an annealing process to relieve internal stresses, refine the grain structure, and enhance the mechanical properties of the material. Annealing is typically performed by heating the rods to high temperatures and then slowly cooling them under controlled conditions.
Straightening and Cutting: The annealed rods are straightened to ensure they meet the required straightness tolerances. They are then cut to the desired lengths using cutting machines.
Surface Treatment: The rods may undergo surface treatment processes such as polishing, grinding, or pickling to improve their surface finish and remove any impurities or scale.
Quality Control: Throughout the production process, quality control measures are implemented to monitor the chemical composition, mechanical properties, dimensions, and surface quality of the rods. Non-destructive testing techniques may also be used to ensure the rods meet the specified standards.
Packaging and Shipping: Once the rods pass all quality checks, they are carefully packaged, labeled, and prepared for shipping to customers. The packaging is designed to protect the rods from damage during transportation and storage.
In summary, the production of Inconel 625 rods involves a series of controlled processes, including melting, casting, hot rolling, cold drawing, annealing, straightening, and surface treatment, to produce high-quality rods with the required properties for various industrial applications.
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