Neodymium Magnet vs Ferrite Magnet: What is the Difference

Deciding whether to choose neodymium magnet vs ferrite magnet can be an uphill task.

However, knowing the difference between these two magnets can simplify the whole process.

For that reason, this guide will compare the two magnets side-by-side for a clear understanding.

Let’s dive right in:

Magnetic Features or Properties to Compare	Neodymium Magnet	Ferrite Magnets
Chemical composition	It consists of boron, neodymium, and iron mainly referred to as Nd2 Fe14 B	They are made from ferrite compounds which are mainly iron oxide (Fe2O3) Their chemical composition is SrO-6(Fe2O3)
Cost	More expensive than ferrite magnets	More affordable
Magnetic strength (comparing magnets of the same size)	Stronger magnetic strength than Ferritic magnets. The magnetic strength varies from 1.4 tesla	Although the magnetic strength is high, it is lower than neodymium magnets
Required space	Best choice where space is limited but high magnetic strength is required. As a result, it is easier to miniaturize components	May require a larger space, but the magnetic strength is lower
Price Fluctuations	Fluctuates since it is made from rare earth metals	Stable price since the magnet is not made from rare earth metals
Remanence	Very high than	Slightly lower
Working temperature	At temperatures greater than 80 degrees Celsius, neodymium will begin to lose its magnetic properties It implies they have low Curie temperature (Tc). Additionally, the temperature characteristics are also poor	Working temperature ranges between -40 and 250 degrees Celsius They have high curie temperature (Tc)
Resistance to Corrosion	Not resistant to chemicals, therefore may not be suitable for outdoor use without proper protection mechanism.	Exhibit excellent resistance to corrosion more so by chemicals. Generally, it is a perfect choice for most outdoor applications.
Resistance to breakage	Easily breaks	Can resist breakage
Ability to retain magnetic properties	Can retain magnetic properties for a long time.	They can retain magnetic properties for a long time.
Decoration applications	Due to their silver colors, these magnets can be adapted to most decorative applications	Not suitable for decorative applications due to their dark gray color. Most of these magnets are not easily coated.
Coating	Requires coating since oxidation can quickly erode the surface. Passivation is usually the best surface treatment.	The surface does not require coating
Ability to withstand external magnetic field (Coercivity)	Very high compared to Ferrite Magnets	Comparatively low compared to neodymium
Application	Suitable where there are weight and space constraints Applications include motors, audio devices, lifting equipment, etc.	When circumstances allow, they can replace rare earth magnets. Common applications include sweeper magnets, instruments, etc. They are brittle, so you may not use them for many applications

Neodymium Magnet

With the detailed comparison of neodymium magnet and ferrite magnet, it is easier to choose a permanent magnet for your applications.

Quick FAQs

How does Neodymium Magnet vs Ferrite Magnet Speakers Compare?

Let’s look at some features that will help you choose the best magnet speakers.

Speaker Design Requirements based on the Magnet	Proposed Magnet Type
Efficiency per unit volume	Neodymium magnets
Speaker size	Small require neodymium while big speakers use may use ferrite magnets
High magnetic strength	Choose Neodymium
Cost is a concerned	Choose ferrite magnets for speakers
Speakers that may work at slightly elevated temperature	Ferritic magnets are the best solution

Remember, you can use both neodymium magnets and ceramic ferrite magnets to make high-quality speakers.

Is Iron Nitride Magnet Stronger than Neodymium?

Theoretically, iron nitride magnets tend to be stronger than neodymium magnets. It does not require any rare earth metal.

Will Ferritic Magnets Lose their Magnetism?

Ferritic magnets can retain their magnetism for a long time. It can only lose a small percentage of its initial magnetism after 100 years.

Magnetize Magnets – Source: Bunting

Can Heat Damage Neodymium Magnet?

Above 80 degrees Celsius neodymium magnet will be damaged. It has a maximum working temperature of 80 degrees Celsius.

Can Neodymium Magnets Chip or Peel?

Yes.

Remember, this permanent magnet is brittle and it can crack, chip, or shatter. Such scenarios are possible even though they are made from metals and can be coated.

Conclusion

The difference between neodymium magnets and ferrite magnets is mainly in the material composition and performance. With the information in the table above, it is easier to decide whether to choose rare earth magnets or ferrite magnets.

For all your quality magnets from China, contact us now.

More Resources:

Types of Ferrite Magnets – Source: BMAGNET

Magnet Material Comparison – Source: First 4 Magnates

Rare Earth Magnets vs. Ferrite Magnets – Source: FISHER & PAYKEL