The most powerful magnets available today are the Rare Earths types. Relative Cost By Weight / Relative Cost By BHmaxĭifficulty to Machine / Maximum Operating Temperature 3.0 Which are the strongest magnets? The magnets shown on the site are chosen for economy and for general applications. For most non-technical applications, the grade is not terribly important. In addition to the families noted above, there are various grades within each family. Applications: Ideal for both industrial, and non-technical applications such as holding, magnetic jewelry, clasps and more.Sizes and Shapes: Discs, blocks, rings and rods.Neo magnet material may corrode easily under certain conditions, so it’s best to protect the surface by plating or coating. Characteristics: Not as brittle as SmCo, but should not be used at temperatures above 300☏, without special design considerations.Composed of neodymium, iron & boron, these strong permanent magnets are the most powerful class of magnet materials commercially available today. Neodymium magnets are rare-earth magnet materials with the highest magnetic properties. Applications: Generally used for more technically advanced and high-temperature applications.

Sizes and Shapes: Discs, Blocks, and rings.

Characteristics: High magnetic properties, very brittle, but can be safely used at temperatures up to 500☏.

Today, SmCo magnets are most often used in applications which require elevated temperatures and the need for high magnetic properties. Samarium Cobalt magnets are a class of rare-earth magnet materials that were introduced in the early 1970’s.

Applications: Commonly used in Meters, and for specialized holding, high-temperature applications.

Sizes and Shapes: Discs, Rods, bars, and horseshoes.

Cast alnico magnets can also be produced in relatively complex shapes.

Characteristics: Excellent for high temperature applications up to 1,000☏, high residual induction, and corrosion resistant.

Alnico magnets are used primarily in technical applications, where temperature stability is critical.

Applications: Commonly used for crafts, holding latches, toys, motors and more.Īlnico magnets are composesd of aluminum, nickel, and cobalt, and have been popular since the 1930’s.

Sizes and Shapes: Discs, rings, blocks and arc segment forms.

This material is hard, brittle, and dark gray in color.

Characteristics: Relatively high in magnetic strength, and exhibiting good resistance to demagnetization, ceramic magnets are popular for many consumer applications.

Applications: labeling, signage, visual displays, premiums, adhering office supplies, business cards, DIY home projects, window treatments and more.Ĭeramic (ferrite) magnets are composed of barium or strontium ferrite, and the most widely used, lowest-cost magnet material available today.

Magnetic sheeting rolls are typically 24” wide, 100’ long, and the typical thickness ranges between 0.02” and 0.03”.

Sizes and Shapes: Magnetic strips measure up to 3” wide by 400’ long, and the typical thickness is 1/16”.

Materials laminated with white vinyl can be imprinted using silk screening or digital printing techniques. Both magnetic strips and magnetic sheets are available with double-sided adhesive tape for easy application to products. This inexpensive material can be bent, coiled and twisted, and easy to cut with a knife or scissors. Characteristics: Flexible magnet material is like rubber, and either white or dark brown in color.Flexible Magnetsįlexible magnets are a special form of ferrite or rare-earth magnet materials, manufactured by binding ferrite or rare-earth magnet powders in a variety of carriers, such as vinyl. The information below summarizes the properties of each type to help you decide what you might need. These are, in order of increasing magnetic strength, the Flexible, Ceramic, Alnico, Samarium Cobalt, and Neodymium types. There are five families of magnetic materials that you can choose from. 1.0 What Magnet Materials Can I Choose From?

Magnet rings