Due to its high nickel content and unique alloy composition, Inconel 718 is generally non-magnetic. Its excellent corrosion resistance and high-temperature strength, combined with its non-magnetic nature, make it ideal for industries with extremely high performance and magnetic interference requirements. If you are using Inconel 718 in an application requiring non-magnetic properties, you can rest assured that this alloy will meet your needs.
If you require more information about Inconel 718 or other alloy options, please feel free to contact us.
Is Inconel 718 a magnetic or non-magnetic material?
Is Inconel 718 a magnetic or non-magnetic material?
Inconel 718 is a nonmagnetic nickel-based superalloy. It maintains its nonmagnetic austenitic crystal structure over a wide temperature range, from its low temperature to its melting point. Due to this property, it is ideally suited for applications requiring high strength and corrosion resistance, and free from magnetic interference.
What type of material is Inconel 718?
It's a nickel-chromium alloy.
INCONEL Alloy 718 (UNS N07718/W.Nr. 2.4668) is a high-strength, corrosion-resistant nickel-chromium alloy with a service temperature range of -423°F to 1300°F. This age-hardening alloy is easy to machine, allowing for the manufacture of even complex parts.
Inconel 718 is a nickel-based superalloy known for its high strength, corrosion resistance, and good machinability, especially at high temperatures. In its standard state, Inconel 718 is generally non-magnetic.
Nickel and its alloys (including Inconel 718) are generally non-magnetic in the annealed or solution-treated state. However, the material may develop slight magnetism after cold working or certain heat treatments. This magnetism is typically weaker than that of ferromagnetic materials such as iron and steel.
In fact, if you observe any magnetism in Inconel 718, it likely indicates that the material has undergone some processing or heat treatment that has affected its magnetism. For applications where magnetism is critical, it is recommended to consult the specific material data sheet or the supplier for detailed information on the magnetism of the Inconel 718 alloy in the specific state you are considering.
Understanding the Non-Magnetic Nature of Inconel 718
Inconel Alloy 718 Chemical Composition
| Ni | Cr | Fe | Mo | C | Mn | Si | Ph | S | Ti | Cu | B | Al | Co |
| 50-55 | 17-21 | Bal | 2.8-3.3 | 0.08 | 0.035 | 0.35 | 0.015 | 0.015 | 0.65-1.15 | 0.30 | 0.0006 | 0.2-0.8 | 1.0 |
Is Inconel 718 magnetic?
Inconel 718 is generally considered non-magnetic. This is because the alloy is primarily composed of nickel (non-magnetic) and other elements such as chromium, molybdenum, and niobium. The addition of these elements enhances the alloy's high-temperature strength, oxidation resistance, and overall durability. The non-magnetic nature of Inconel 718 makes it suitable for applications where magnetism might interfere with its function, such as in the aerospace and electrical industries.
Why is Inconel 718 non-magnetic?
The reason Inconel 718 is non-magnetic lies in its unique alloy composition, especially its high nickel content. Nickel is a non-magnetic metal, and although the alloy contains a small amount of iron (which is typically magnetic), its overall structure is carefully designed to prevent it from exhibiting significant magnetism. The presence of elements such as chromium, molybdenum, and niobium also helps stabilize the alloy's structure, preventing it from becoming magnetic.
Applications of Non-Magnetic Inconel 718
The non-magnetic nature of Inconel 718 is one of the reasons for its widespread use in industries where magnetic interference can be problematic. Some common applications include:
Aerospace
Inconel 718 is commonly used in jet engine and turbine components, where its non-magnetic nature helps prevent interference with precision equipment.
Medical Devices
Inconel 718 alloys are used in medical implants and devices, where its non-magnetic nature is crucial for ensuring compatibility with MRI.
Electronics
The non-magnetic nature of Inconel 718 also makes it important in applications where exposure to magnetic fields could affect the performance of electronic components.
Gnee Steel also supplies custom Inconel 718 products in various sizes and specifications. Please send us your drawings for a quote!
About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
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