| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
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| Standard: | JIS, GB, DIN, BS, ASTM, AISI |
| Purity: | 58% |
| Alloy: | Alloy |
| Type: | Nickel Strip |
| 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 strips 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 strips 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 strips 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 strips involves several steps, including melting, casting, hot rolling, cold rolling, and final finishing. Here's a detailed description of the production process:
Raw Material Preparation: The production begins with the selection of high-quality raw materials, including nickel, chromium, molybdenum, niobium, and other alloying elements. These materials are carefully weighed and mixed to achieve the desired composition.
Melting: The raw materials are melted in a vacuum induction furnace or an electric arc furnace under controlled conditions to ensure uniformity and purity of the alloy composition. The molten metal is then refined to remove any impurities.
Casting: Once the molten metal is refined, it is poured into molds to form ingots or slabs. These ingots or slabs are then allowed to solidify and cool to room temperature.
Hot Rolling: The solidified ingots or slabs are reheated to high temperatures and passed through a series of rolling mills to reduce their thickness and width. This process is called hot rolling and is typically performed at temperatures above the recrystallization temperature of the alloy.
Cold Rolling: After hot rolling, the strips undergo cold rolling to further reduce their thickness and improve their surface finish. Cold rolling is performed at room temperature using specialized rolling mills, which apply high pressure to the strips to achieve the desired thickness and dimensional accuracy.
Annealing: Cold-rolled strips may undergo annealing, a heat treatment process that involves heating the strips to high temperatures and then slowly cooling them to relieve internal stresses and improve their mechanical properties.
Final Finishing: Once the desired thickness and properties are achieved, the strips undergo final finishing processes, such as cutting, slitting, edge trimming, and surface treatment, to meet the specific requirements of customers. This may include polishing, coating, or heat treatment as needed.
Quality Control: Throughout the production process, strict quality control measures are implemented to ensure that the Inconel 625 strips meet the required standards for composition, dimensions, mechanical properties, and surface finish.
Packaging and Shipping: The finished strips are carefully inspected, packaged, and labeled according to customer specifications. They are then shipped to customers for use in various applications across industries.
Overall, the production of Inconel 625 strips involves precise control of parameters such as temperature, pressure, and rolling speed to achieve the desired properties and dimensions required for specific applications.
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