Does cobalt magnet (samarium cobalt) have 9000 Gauss?

Many people directly ask a question when choosing magnets, can cobalt magnets achieve 9000 Gauss? Here, I understand cobalt magnets as samarium cobalt magnets.

From the perspective of the material itself, the advantages of ordinary sintered samarium cobalt magnets (SmCo) lie in their high temperature resistance and strong demagnetization resistance, rather than pursuing extremely high surface magnetic field strength. Under common dimensions and testing conditions, the surface Gaussian value of a single samarium cobalt magnet is generally much lower than 9500 Gauss, and more concentrated around two to three thousand Gauss.

So we can't achieve it, can we?

Not really. If combined, cobalt magnetism still has a chance to reach 9000 Gauss.

Samarium cobalt magnetic rod

For example, combining a samarium cobalt magnet with a stainless steel sleeve to form a samarium cobalt magnet rod can meet the requirement of 9500 Gauss, so it depends on whether you want this type, otherwise a single cobalt magnet cannot achieve it. Not only that, even neodymium iron boron material is not acceptable.

So, whether a magnet can achieve Gaussian index depends on its structure and magnetic circuit, not just the material itself.

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