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Is Cobalt Chrome Magnetic?

Is Cobalt Chrome Magnetic?

Cobalt chrome is a popular metal alloy for jewelry and prosthetics, but what about its magnetic properties? Does cobalt chrome have any effect on a magnet? In this blog, we’ll answer that question and discuss cobalt chrome’s composition and how it affects its magnetism.

What is Cobalt Chrome?

Cobalt chrome is an alloy of chromium, cobalt, and sometimes tungsten or molybdenum. It’s often used in medical implants such as hip replacements because it’s resistant to corrosion and wear. It also has a high melting point, meaning it won’t warp or deform under extremely hot temperatures. Cobalt chrome is also popular for jewelry because it looks like white gold or silver but doesn’t require maintenance like other precious metals.

Is Cobalt Chrome Magnetic?

Cobalt chrome is not magnetic; however, adding cobalt to stainless steel can make it magnetic. This type of stainless steel is known as “cobalt-bearing stainless steel” and can be found in many everyday items such as fridge magnets, knives, scissors, coins, and more. In jewelry specifically, though, cobalt chrome itself will not attract a magnet since it does not contain any iron-based alloys.

Effects of Magnetism on Cobalt Chrome

Even though cobalt chrome isn’t magnetic, it can still be affected by magnets when used near them. For example, suppose you have a watch made with cobalt chrome. In that case, you should avoid putting it near strong magnets like those found in speakers or stereo systems since the powerful magnetic fields may disrupt the watch’s movement — resulting in incorrect time readings or even damage to the watch components themselves! The same goes for other items made out of cobalt chrome, such as prosthetic joints: they should be kept away from strong magnets to prevent disruption and damage to their internal components.


In conclusion, while cobalt chrome itself isn’t magnetic due to its composition — which typically consists of chromium, cobalt, and sometimes tungsten/molybdenum — adding cobalt to stainless steel can make the steel magnetic. However, no matter if you have an item made out of pure cobalt chrome or one with added iron-based alloys — such as fridge magnets or watches — you should keep them away from strong magnets since they could disrupt their operation or even cause permanent damage! With that said, though, you don’t need to worry about your jewelry being attracted to everyday items like your fridge door; they won’t stick around! So now you know all about the magnetism (or lack thereof) associated with cobalt chrome!

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