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Key Features & Advantages

Alnico magnets have high magnetic strength and energy but low coercivity. They are less brittle than rare-earth magnets, with excellent corrosion resistance and temperature stability, and can work at very high temperatures. Made by casting or sintering, they can be made into complex shapes (such as horseshoe) that other magnets cannot.

​​​​​Customization

​​Grade 5 and Grade 8 are the most common alnico grades. We can customize almost any shape and size according to your drawings from sintered or cast materials. Contact us for a quote and we will provide the most cost-effective solution.

​​​​​​​Processing Notes

Alnico magnets are hard and brittle, easy to crack. They need careful processing and are not suitable for structural or decorative use. Regular machining is not applicable; cutting and grinding must be done before magnetization, and holes need EDM. We can process them as your drawings require.

​​​​​​​Surface Treatment

Alnico magnets usually need no coating or plating due to good corrosion resistance.

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AlNiCo has great natural corrosion resistance.

Coating is usually unnecessary. Nickel or epoxy coating is optional for harsh corrosive environments.

Extremely stable. They have negligible demagnetization over decades under normal conditions, with consistent performance across temperature fluctuations.

Mainly used in instruments, sensors, speakers, motors, automotive, aerospace and high-temperature precision devices.

Raw material, grade, shape complexity, tolerance, coating, magnetization type, and order volume

Samples: 7–15 days

Mass production: 15–25 days

MOQ: 1000–5000pcs (depends on size and shape)

Per batch: dimension, magnetic performance, temp resistance, salt spray, visual inspection.

AQL standard available

Yes.

We offer custom shapes (disc, block, ring, arc), grades, magnetizations, tolerances, and coatings to meet your requirements.

Samples are free for in-stock items. A sample fee applies to out-of-stock items, which is fully creditable against your bulk order.

Shipping cost is on your side.

AlNiCo has lower magnetic strength but highest temperature resistance and excellent stability, suitable for high-temperature low-demanding scenarios.