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High-Temperature Resistant Magnets
High-Temperature Magnets, engineered to withstand extreme heat, deliver unparalleled performance in demanding environments. Perfect for use in aerospace, automotive, and industrial applications, they ensure consistent and reliable operation even under intense thermal conditions. With exceptional durability and precision, these magnets are indispensable in cutting-edge manufacturing, scientific research, and high-performance machinery. Discover the ultimate solution for heat-resilient strength and efficiency with Magnet Store's High-Temperature Magnets
Shop High-Temperature Resistant Magnets
Shop High-Temperature Resistant Magnets
Discover Magnet Store's premium high-temperature resistant magnets, engineered for demanding environments where standard magnets fail. Ideal for professional applications such as industrial machinery, automotive systems, and scientific equipment exposed to extreme heat. These magnets are perfect for tasks requiring reliable performance under high-temperature conditions.
Showing 25–35 of 35 resultsSorted by price: low to high
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20mm x 10mm x (5.2mm Countersunk Hole) Ferrite Disc Magnet Y35 (1.3KG Pull)
From £29.54 (£24.62 ex VAT) -
8mm x 2mm Samarium Cobalt Disc Magnet Sm2Co17 – Max Temp 350°C (0.075KG Pull)
From £30.54 (£25.45 ex VAT) -
17mm x 17mm x 4.5mm Neodymium Block Magnet N40EH – Max Temp 200°C (6.35KG Pull)
From £32.60 (£27.17 ex VAT) -
15mm x 10mm Neodymium Disc Magnet Black Epoxy N45UH – Max Temp 180° (8.86KG Pull)
From £37.90 (£31.58 ex VAT) -
20mm x 10mm x (5.2mm Countersunk Hole) Samarium Cobalt Disc Magnet Sm2Co17 – Max Temp 350°C (2.0KG Pull)
From £42.72 (£35.60 ex VAT) -
10mm x 5mm x (3.2mm Countersunk Hole) Samarium Cobalt Disc Magnet Sm2Co17 – Max Temp 350°C (0.29KG Pull)
From £47.85 (£39.88 ex VAT) -
20mm x 3mm Samarium Cobalt Disc Magnet Sm2Co17 – Max Temp 350°C (0.7KG Pull)
From £82.62 (£68.85 ex VAT) -
25mm x 10mm x 3mm Samarium Cobalt Block Magnet Sm2Co17 – Max Temp 350°C (0.37KG Pull)
From £87.18 (£72.65 ex VAT) -
6mm x 4mm Samarium Cobalt Disc Magnet Diametrically Magnetised Sm2Co17 – Max Temp 350°C (0.084KG Pull)
From £90.18 (£75.15 ex VAT) -
20mm x 5mm Samarium Cobalt Disc Magnet Sm2Co17 – Max Temp 350°C (1.1KG Pull)
From £119.67 (£99.73 ex VAT) -
OD49mm x ID43mm x Thickness 2.15mm Neodymium Arc Full Assembly Magnet N45H – Max Temp 120°C
£136.72 (£113.93 ex VAT)
High Tempreture Magnets FAQs
How do I choose a magnet grade for high temperatures?
Match the grade suffix to your maximum working temperature, then confirm it against the datasheet for the exact part.
Neodymium grades carry a letter suffix showing how well they resist demagnetisation as they heat up: no suffix is the standard rating, then M, H, SH, UH and EH climb progressively. In this category that means N54H magnets are rated to 120°C and N52SH magnets to 150°C. For anything hotter, see samarium cobalt below.
What do the letters after a neodymium grade mean?
The number is magnetic strength and the letter is heat resistance, and the two trade off against each other.
N54H pairs a very high strength number with the H temperature rating, while N52SH gives up a little strength for the higher SH rating. That is why N52SH is rated 30°C hotter than N54H despite carrying the lower number. Our neodymium magnet grades guide sets out the full range.
When should I use samarium cobalt instead of neodymium?
Choose samarium cobalt when your application runs above roughly 150°C, or where corrosion resistance matters.
Our Sm2Co17 magnets are rated to 350°C. They deliver less pull force than a neodymium magnet of the same size, so expect to size up when you switch.
Is the maximum temperature a fixed limit?
No. The figure on each product is a guide for typical use.
The temperature a magnet actually tolerates also depends on its shape and the magnetic circuit it sits in. A thin magnet in open air will lose performance sooner than a thicker one in a closed steel circuit. If your application runs close to the limit, tell us the operating conditions and we will advise.
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