ALNiCo Magnet by china-magnets-source-material.com

Alnico magnet is the first generation permanent magnetic material. It is a kind of alloy that contains aluminum, nickel, cobalt, iron and other microscope metallic element.

The Alnico magnet manufacture successfully in the 1930 s. At that time, the Alnico is the best in magnetic performance, and its temperature coefficient is very small. Therefore, the Alnico magnet is mainly used on producing the permanent motor at that time. After the 1960s, with the development of ferrite permanent magnet and rare earth permanent magnet, the alnico magnets are replaced to use in producing motor.

How to choose a magnetic material? By china-magnets-source-material.com

When choose a magnet material, you need to figure out the requirement you need magnet to do in your application, but not blindly pursue high performance magnetic material; and then get a comprehensive understanding of different magnetic materials. If you have confusion on some point, you can ask for technical help from magnet specialist or manufacturer.

Material	Magnetic Property	Working Temperature	Corrosion Resistance	Price	Remark
NdFeB Magnet	high	low	low	high	1
Ferrite / Ceramic	middle	middle	high	low	3
SmCo Magnet	high	high	high	high	2
AlNiCo Magnet	low	high	high	middle	4

Ferrite and ndfeb magnet can be processed by sintering or bonding method. The Sintered magnet has high magnetic force, but poor formation. The bonded magnet has good formation, but low property.
Alnico can be processed by casting and sintering, the cast alnico has high property, but poor formation. The bonded alnico has good formation, but low property.

This is a brief introduction for choosing magnetic material, for more information, please visit our website www.china-magnets-source-material.com

What is magnetic material? by china-magnets-source-material.com

Magnetic material is one of three fundamental functional materials in the industry. 

It was divided in two types based on magnetic properties: soft magnet and hard magnet (also named permanent magnet). Both are easy to get magnetized. The difference is: hard magnet can stay magnetized for long time with high coercive force; soft magnet has low coercive force, so lost its magnetic force easily.

Soft magnet: steel and iron, soft ferrite and high iron amorphous materials

Hard magnet: Sintered Neodymium Magnet, BondedNeodymium Magnet, AlNiCo, Samarium Cobalt Magnet, Ferrite (due to rare earth material content, they are also called rare earth magnets except ferrite)