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3 Types of Cobalt Metal

Everything You Need to Know About Cobalt

When most people think of cobalt, they usually associate it with the color blue. However, are there actually several different types of cobalt? In this blog post, we’re going to take a closer look at the various types of cobalt and what makes them unique.




Cobalt-60 (Co-60) is a radioactive isotope of cobalt that is produced through neutron activation in nuclear reactors. It has a half-life of 5.27 years and is commonly used in radiotherapy —the use of radiation to treat cancer—as well as research into food irradiation and industrial sterilization. Co-60 is also used for medical imaging, such as X-rays and gamma scans.

Cobalt Blue Glass

Cobalt blue glass is a type of glass made with cobalt oxide, which gives it its signature light blue hue. It was first developed in Germany in the early 19th century and has been used for centuries for decorative purposes, such as vases and bowls. Today, it’s still used in some laboratory experiments due to its ability to filter out certain frequencies of light.

Cobalt Steel

Cobalt steel is an alloy made from iron, carbon, chromium, tungsten and other trace elements such as nickel or molybdenum that contain cobalt atoms within their molecular structure. This type of steel is known for its exceptional strength and durability – it can be up to three times harder than regular carbon steel – making it ideal for use in cutting tools such as drill bits or saw blades.


As you can see, there are many different types of cobalt out there! Whether you’re looking for a material that can produce powerful X-rays or something stronger than regular steel for your cutting tools, there’s sure to be a type of cobalt suited to your needs. Next time you’re faced with a project requiring one of these materials, make sure to consider the different types available!


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