Cobalt alloys are a group of cobalt-chromium ‘super-alloys’. They are designed for high wear resistance and excellent chemical and corrosion performance in hostile environments. Let’s take a deeper look at this type of superalloy and why you should use it for your next project.
Chemical Properties
There are several different types of these superalloys all containing various levels of titanium, silicon, sulfur, phosphorus, molybdenum, manganese, chromium, carbon, boron, aluminum, iron, nickel, and cobalt. Most of them contain four to six of these elements. Cobalt is the largest alloy found in cobalt alloys. Chromium is also an extremely important. It not only offers high corrosion resistance, it’s also the predominant carbide former and it provides strength.
Manufacturing Processes
Cobalt alloys are produced via wrought or hot forging, hard-faced deposit, powder metal, and casting. It is more difficult to machine and grind than steel and requires high-performance processing equipment and specialized machining tools.
Applications
Cobalt alloys are found in many different products. Some of those include:• Saw teeth, hard facing, and acid-resistant machine parts• Poppet valves, valve seats, and exhaust valves of an internal combustion engine• M2HB machine gun and machine gun barrels• Medical applications including manufacturing of artificial hip joints, other bone replacements and cast structure of dental prosthesis• Turning tools for lathes
Should I Use Cobalt Alloy Parts for My Next Project?
If you are thinking of using cobalt alloy parts for your next project, contact us at Ferralloy today. We can help with all your superalloy and other metal needs and offer high-quality products.
