Stellite vs Inconel

Stellite vs Inconel: What’s the Difference

ByAbhishek Modak

When it comes to metal alloys, there are a plethora of options available. Two of the most popular choices are Stellite and inconel. Both have remarkable properties that make them great for various applications, so let’s take some time to explore their differences.

What is Stellite?

Elwood Haynes developed Stellite alloys in the early 1900s made up of cobalt, chromium, tungsten, and carbon. It is often used in high-wear applications because it has superior wear resistance and is corrosion-resistant when exposed to heat or chemical solutions. Stellite also has superior machinability, making it ideal for components that need to be milled or shaped into precise shapes.

What is Inconel?

Inconel is an alloy composed primarily of nickel and chromium (with other elements such as iron and molybdenum added). It was developed in the 1940s by Wiggin Alloys and has become widely used in aerospace engineering due to its ability to withstand extreme temperatures without becoming brittle. In addition, Inconel also has good thermal fatigue strength and oxidation resistance making it ideal for parts that need to resist corrosion over long periods at high temperatures.

Differences Between Stellite and Inconel

When comparing Stellite and Inconel, it is important to remember that both are high-performance alloys used in a variety of industries. While they both offer resistance to corrosion, heat, and wear and tear, their composition is what sets them apart. Stellite contains more chromium as well as tungsten which gives it more strength in extreme environments while Inconel contains nickel which makes it resistant to corrosion. Stellite is frequently used in tools that will be subject to a significant amount of pressure during use such as valves in pumps whereas Inconel can often be found used for exhaust systems in the automotive industry due to its ability to resist higher temperatures without becoming brittle or flaking off.

  • Stellite is a cobalt-chromium alloy, while Inconel is an austenitic nickel-chromium alloy.
  • Stellite has a higher melting point than Inconel.
  • Stellite is more resistant to corrosion than Inconel.
  • Stellite is harder and stronger than Inconel.
  • Inconel is more resistant to heat than Stellite.
  • Inconel is more ductile than Stellite.

Conclusion:

When it comes to metal alloys, there are several different options available depending on your application requirements. Stellite alloys provide superior wear resistance and good machinability, while Inconel offers excellent corrosion resistance at high temperatures with good thermal fatigue strength. Whether you choose Stellite or inconel depends on your particular needs, but both offer unique advantages that make them excellent choices for many applications. Regardless of your decision, both alloys can help you create parts that will la

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