Best Alnico Magnets of 2025

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 29 Jan 2025

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Alnico magnets are a type of permanent magnet made of an alloy of aluminum, nickel, and cobalt, with small amounts of other metals such as copper and iron. These magnets have high magnetic strength and are resistant to demagnetization, making them useful in various applications like sensors, motors, and generators. Alnico magnets come in different shapes and sizes, including blocks, rods, and discs, and can be magnetized in various directions. They are also able to operate at high temperatures and can maintain their magnetic properties even in harsh environments. Overall, alnico magnets are a reliable and versatile option for magnetic applications.

At a Glance: Our Top Picks

Educational Alnico Magnet and Iron Filings Set Cover #TOP 1
Educational Alnico Magnet and Iron Filings Set
ftb score rating icon 9.8
Alnico Horseshoe Magnet for Engineering Applications Cover #TOP 2
Alnico Horseshoe Magnet for Engineering Applications
ftb score rating icon 9.7
2 Alnico Rectangular Bar Magnets for Education Cover #TOP 3
2 Alnico Rectangular Bar Magnets for Education
ftb score rating icon 9.5

Top 10 Alnico Magnets

#TOP 1

Educational Alnico Magnet and Iron Filings Set

F110-IRON-1
Red, Silver
Pack of 1
Educational Alnico Magnet and Iron Filings Set Cover
Educational Alnico Bar Magnet & Iron Filings Set for Science, Education, Experiments, Students, and Teachers

The FIRST4MAGNETS Magnet Set is an excellent resource for teaching children about physics and conducting engaging science projects. The combination of bar magnets and iron filings allows you to easily demonstrate the patterns of magnetic fields, making learning both fun and interactive. With its protective epoxy paint coating, you can be assured of durability while using the magnets in various experiments. The compact size and manageable weight of the set make it convenient for students and teachers alike, enhancing any educational experience.

What We Like
Ideal for educational purposes
Great for hands-on experiments
Durable protective coating
Compact and lightweight design
#TOP 2

Alnico Horseshoe Magnet for Engineering Applications

F4M812-1
Pack of 1
Alnico Horseshoe Magnet for Engineering Applications Cover
Medium Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 40mm x 25mm x 25mm 4.5mm hole - 9kg Pull

The FIRST4MAGNETS Alnico Magnet is perfect for engineering and manufacturing tasks. Its impressive strength and high-temperature resistance, up to 500 degrees Celsius, allow you to use it in demanding environments. Additionally, its corrosion resistance makes it suitable for underwater and sub-sea applications, giving you confidence in its durability. The protective epoxy coating further enhances its longevity, ensuring it maintains performance even in tough conditions. This magnet's robust features make it an essential tool for any engineering project.

What We Like
High strength and durability
Corrosion resistant
High-temperature tolerance
Protective epoxy coating
#TOP 3

2 Alnico Rectangular Bar Magnets for Education

ALBAR100520-1
Pack of 1
2 Alnico Rectangular Bar Magnets for Education Cover
2 Alnico Rectangular Bar Magnets for Science, Education, Experiments, Students, and Teachers - 0.1kg Pull (10 x 5 x 20mm)

The Alnico Bar Magnets come as a pack of two, making them ideal for various educational purposes. Each magnet measures 10mm x 5mm x 20mm, providing a compact size that is easy to handle. With a pull strength of 0.1kg, these magnets are effective for experiments and demonstrations, allowing you to explore magnetic forces in a practical way. They can withstand temperatures up to 500 degrees Celsius, ensuring durability even in challenging conditions. The protective epoxy coating adds an extra layer of safety and longevity, making them suitable for classroom use.

What We Like
Compact size for easy handling
Effective for educational experiments
Durable up to 500 degrees Celsius
Protective epoxy coating
Pack of two magnets
#TOP 4

Horseshoe Magnet 80 mm AlNiCo5 for Education

1286
Red, Green
80 x 60 x 15 mm
Horseshoe Magnet 80 mm AlNiCo5 for Education Cover
Horseshoe Magnet 80 mm x 60 mm x 15 mm, school Magnet made of AlNiCo5 red-green coated - holds 3,2 kg - Power AlNiCo Magnets for Experiments, Science & Education

The Magnosphere Horseshoe Magnet is a versatile tool for education and experiments. Made from durable AlNiCo5, this magnet measures 80 x 60 x 15 mm and can hold up to 3.2 kg, making it ideal for various training purposes. Its distinctive red and green coating helps you easily identify the north and south poles, enhancing your learning experience. The magnet is suitable for a range of scientific applications, providing you with reliable performance and durability for your educational activities.

What We Like
Strong holding capacity
Identifiable pole colours
Durable AlNiCo5 material
Ideal for experiments
#TOP 5

Alnico Shallow Pot Magnet for High Temperatures

ALSP2909M5-4
Pack of 4
Alnico Shallow Pot Magnet for High Temperatures Cover
Alnico Shallow Pot Magnet for High-Temperature, Engineering, and Manufacturing Applications - 29mm dia x 9mm thick c/w 5.2mm dia countersunk hole - 5kg Pull - Pack of 4

The FIRST4MAGNETS Pot Magnet is designed for high-temperature applications, operating effectively at up to 450 degrees Celsius. This makes it perfect for situations where heat is a factor. Its clamping capability allows you to easily fix it onto assemblies, making it a valuable tool in engineering and manufacturing. The protective steel outer shell not only safeguards the magnet but also enhances its magnetic strength. Additionally, the epoxy coating ensures durability, adding to its long-lasting performance.

What We Like
High-temperature operation up to 450°C
Ideal for clamping applications
Strong protective outer shell
Durable epoxy coating
#TOP 6

Extra Large Red Alnico Horseshoe Magnet for Engineering

F4M814-1
Pack of 1
Extra Large Red Alnico Horseshoe Magnet for Engineering Cover
Extra Large Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 57mm x 35mm x 40.5mm - 23kg Pull

The FIRST4MAGNETS Alnico Magnet is an exceptional choice for engineering and manufacturing applications. Its impressive strength and high operating temperature of up to 500 degrees Celsius make it ideal for challenging environments. You will appreciate its corrosion resistance, ensuring durability even in underwater and high-temperature settings. Additionally, the protective epoxy coating enhances its longevity, allowing you to use it confidently in various projects without worrying about wear and tear.

What We Like
Strong pull force
High-temperature resistant
Corrosion resistant
Durable protective coating
#TOP 7

Large Red Alnico Horseshoe Magnet for Engineering

F4M813-1
Pack of 1
Large Red Alnico Horseshoe Magnet for Engineering Cover
Large Red Alnico Horseshoe Magnet for High-Temperature, Engineering, and Manufacturing Applications - 30mm x 45mm x 30mm 4.5mm hole - 11kg Pull

The FIRST4MAGNETS Alnico Horseshoe Magnet is perfect for those in engineering and manufacturing. Its impressive strength provides reliable performance for various applications. You can trust its corrosion resistance, making it suitable for high-temperature and underwater settings. With a protective epoxy coating, this magnet ensures durability and longevity. Its compact dimensions, coupled with an 11kg pull force, make it a versatile tool for your projects.

What We Like
High strength for various applications
Corrosion resistant for durability
Suitable for high temperatures
Protective coating enhances longevity
Compact size for versatility
#TOP 8

Alnico Round Bar Magnets for Education

ALROD0620-1
Pack of 2
Alnico Round Bar Magnets for Education Cover
2 Alnico Round Bar, Rod Magnets for Science, Education, Experiments and High-Temperature Applications - 6mm dia x 20mm long - 0.4kg Pull

The Alnico Magnets are perfect for high-temperature applications, as they can withstand operating temperatures up to 500 degrees Celsius. This feature ensures that you can use them in various scientific experiments without worrying about their performance. They are also corrosion resistant, making them suitable for outdoor use and ensuring longevity. Additionally, these magnets are ideal for educational purposes, allowing students and teachers to conduct hands-on experiments easily. With a protective epoxy coating, they are designed to maintain their integrity even in challenging environments.

What We Like
High-temperature resistant
Corrosion resistant
Educational use
Protective coating
#TOP 9

Red Cast Alnico 5 Bridge Magnet with Keeper

Red Cast Alnico 5 Bridge Magnet with Keeper Cover
Red Cast Alnico 5 Bridge Magnet With Keeper, 1.18" Wide, 0.78" High, 0.78" Thick, 0.20" Hole On Top (Pack of 1)

The Master Magnetics Alnico 5 Magnet is designed to deliver exceptional performance, producing a high pull strength even in extreme temperatures up to 975 degrees Fahrenheit. You will appreciate its temperature stability, as the holding power remains consistent, making it ideal for various heat applications. With its unique 2-Poles design, this magnet enhances holding ability to steel and thin materials without iron, providing you with versatility in your projects. Additionally, the included keeper ensures that the magnet's strength is maintained, adding to your convenience.

What We Like
High pull strength
Temperature stable
Enhanced holding ability
Includes a keeper
#TOP 10

High-Temperature Alnico Round Bar Magnets

ALROD0825-1
Pack of 2
High-Temperature Alnico Round Bar Magnets Cover
2 Alnico Round Bar, Rod Magnets for Science, Education, Experiments and High-Temperature Applications - 8mm dia x 25mm long - 0.49kg Pull

The FIRST4MAGNETS Alnico Magnets are perfect for high-temperature applications, operating efficiently at up to 500 degrees Celsius. This feature is particularly beneficial if you need a reliable magnet for experiments or outdoor use. Additionally, these magnets are corrosion-resistant, ensuring they maintain their performance even in challenging environments. Ideal for educational purposes, they serve as excellent tools for students and teachers alike. The protective epoxy coating further enhances their durability, allowing you to use them confidently in various projects.

What We Like
High-temperature resistance
Corrosion-resistant
Ideal for education
Durable protective coating
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Are alnico magnets strong?

Alnico magnets are generally stronger than regular ferrite (ceramic) magnets, they are also electrically conductive unlike ceramic/ferrite magnets. To their advantage, alnico magnets though still brittle are typically less brittle than most rare-earth magnets and produce a strong magnetic field.

2. Do alnico magnets lose their magnetism?

Magnets that are not protected from outside magnetic fields may fall prey to loss of magnetic charge. Certain magnets are more susceptible to this effect, such as Alnico. External magnetic fields that may lead to demagnetization are encountered multiple ways, environmentally and through improper storage.

3. What is the strongest magnet in the world?

The strongest permanent magnets in the world are neodymium (Nd) magnets, they are made from magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.

4. What is the use of alnico?

Alnico is a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni), and cobalt (Co), hence the acronym al-ni-co. They also include copper, and sometimes titanium. Alnico alloys are ferromagnetic, and are used to make permanent magnets.

Editor's Notes

During our alnico magnet research, we found 19 alnico magnet products and shortlisted 10 quality products. We collected and analyzed 3,353 customer reviews through our big data system to write the alnico magnets list. We found that most customers choose alnico magnets with an average price of £18.15.

The alnico magnets are available for purchase. We have researched hundreds of brands and picked the top brands of alnico magnets, including FIRST4MAGNETS, Magnosphere, Master Magnetics.

Written by
Kenneth Collin Avatar

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.