Inconel is a superalloy containing nickel, chromium and molybdenum, with other elements added for specific industrial applications. When selecting a superalloy for a specific engineering need, it is important to understand the differences between the different types of alloys. Let’s take a look at two popular Inconel alloys – 82 and 625.
Differences between Inconel 82 and Inconel 625:
Inconel 82 (UNS N07208) and 625 (UNS N06625) are both popular materials used in a wide range of industrial applications such as heat exchangers, furnace components and exhaust systems. They all have excellent corrosion and oxidation resistance and are highly resistant to stress corrosion cracking. However, there are still certain differences between the two materials.
Inconel 82:
Inconel 82 has higher nickel and chromium content than Inconel 625. This gives it better creep rupture strength at high temperatures (up to 1300°C). It also has higher tensile strength than Inconel 625, making it suitable for applications where components must maintain strength under high temperature stress or vibration, such as gas turbines or chemical reactors. However, due to its higher content of alloying elements such as nickel and chromium, Inconel 82 is also more expensive than Inconel 625.
Inconel 625 has lower nickel and chromium content but still maintains good creep rupture strength up to 900°C due to its high molybdenum content. It has better weldability than Inconel 82, making it easier to make complex shapes through welding techniques like TIG welding or MIG welding. As such, it is often used in applications that require parts to be shaped or formed into complex designs, such as aircraft turbine blades or medical implants.
Inconel 82 is an austenitic nickel-chromium alloy with excellent corrosion resistance and high strength.
Inconel 625 is an austenitic nickel-chromium alloy with excellent corrosion resistance and high strength.
Inconel 82 has better resistance to pitting and crevice corrosion than Inconel 625.
Inconel 625 has better resistance to stress corrosion cracking than Inconel 82.
Inconel 82 has better resistance to intergranular corrosion than Inconel 625.
Inconel 625 has better weldability than Inconel 82.
in conclusion:
In summary, both Inconel 82 and 625 are ideal choices for industrial applications requiring excellent corrosion and oxidation resistance at high temperatures; however, they each have unique advantages depending on the application requirements. For example, if your project requires parts that maintain strength under high-temperature stress or vibration, you may want to consider Inconel 82; whereas if you need parts that can be easily formed into complex shapes, you may want to use Inconel 625. No matter which material you choose, be sure to understand the specifics of each option so you can make an informed decision when selecting a superalloy for your engineering needs!
Tianjin Anton Metal Manufacture Co., Ltd. is a company specializing in the production of various nickel-based alloys, Hastelloy alloys and high-temperature alloy materials. The company was established in 1989 with a registered capital of 10.0 million, specializing in the production and sales of alloy materials. Anton Metal’s products are widely used in aerospace, chemical industry, electric power, automobile, nuclear energy and other fields, and can also provide customized alloy material solutions according to customer needs. If you need to know the price consultation of alloy materials or provide customized alloy material solutions, please feel free to contact the sales staff.
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Post time: Nov-18-2023
