Comparison of samarium cobalt magnet and ndfeb magnet

Many customers do not understand the difference between ndfeb magnets and samarium cobalt magnets, you will understand the use of ndfeb magnets market larger reasons.

(1) Different ingredients:

Ndfeb magnet:

The rare earth metal neodymium is 29 percent to 32.5 percent

Metallic element iron 63.95-68.65%

The nonmetal boron 1.1-1.2%

Elements such as dysprosium 0.6-1.2% niobium 0.3-0.5% aluminum 0.3-0.5% copper 0.05-0.15% were added to a small amount.

Samarium cobalt magnet 2:17:

The rare earth metal samarium Sm:23-28%

Rare earth metal cobalt Co:48-52%

Metallic element iron Fe:14-17%

Metal element copper :5-7%

Minor addition of zirconium Zr:2-3

(2) different performance

Comparatively speaking, the overall performance of samarium cobalt magnet is weaker than that of ndfeb!

(3) different prices

Samarium cobalt magnets and ndfeb magnets of the same performance size, the price of ndfeb is lower than samarium cobalt!Of course from the above two metal element ratio can see!The content of ndfeb in iron is higher, rare earth element content is less, and the price of iron is very cheap, so the price of ndfeb is cheap!Samarium cobalt magnet in the rare earth element samarium and cobalt content accounted for about 70%, so the price is slightly higher!

(4) the ability of high temperature resistance, oxidation resistance and corrosion resistance is different

The content of iron in ndfeb is very high, so it is easy to be oxidized corrosion, so to do plating treatment, the service life is largely determined by the coating effect!The content of iron in samarium cobalt magnet only accounts for a small part, basically are not easy to be oxidized corrosion of rare earth and metal elements, generally, do not need to be electroplating treatment;However, the use environment is more harsh or in order to extend the service life beautify the appearance, do plating treatment will be better!

Jugo Magnet is a rare earth magnet manufacturer with many years of experience in China.More question of samarium cobalt magnet and ndfeb magnet, Welcome contact Jugo Magnet freely!

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