ThePipingMart Blog Metals Differences Between Waspaloy and Hastelloy

Differences Between Waspaloy and Hastelloy

Between Waspaloy and Hastelloy

When it comes to choosing the right metal alloy for your project, there are many options available. Two that are often compared side-by-side are Waspaloy and Hastelloy. Both alloys have unique properties that can make them suitable for certain applications, so let’s break down exactly what makes these metals different from one another.

Composition of Alloys

The most basic difference between Waspaloy and Hastelloy is their composition. Waspaloy is an age-hardenable nickel-based superalloy composed of nickel, cobalt, iron, chromium, molybdenum, aluminum, titanium, and tungsten. The exact composition will vary depending on who manufactures the alloy but typically contains around 50-60% nickel with other minor components included as well. This combination of elements gives it excellent strength at high temperatures while still being corrosion-resistant.

Hastelloy is also a nickel-based superalloy, but its composition is slightly different than that of Waspaloy’s. It contains more chromium than Waspaloy does (around 22%) as well as molybdenum (around 14%) which together give it better corrosion resistance than Waspaloy. It has a higher melting point than Waspaloy as well due to its higher chromium content which also helps in making it more heat resistant overall.

Waspaloy vs Hastelloy

  • Stainless steel is a very strong and durable material that can withstand a lot of wear and tear.
  • It is also very easy to clean and maintain, as it does not corrode or rust like other metals.
  • However, stainless steel can be quite expensive, and it is also susceptible to fingerprints and smudges.
  • Additionally, stainless steel can become very hot when exposed to direct sunlight or heat, making it uncomfortable to use in certain situations.
  • Overall, stainless steel is a great choice for those looking for a durable and easy-to-maintain material, but it is important to keep in mind its potential drawbacks before making a purchase.


The primary difference between these two alloys lies in their uses due to their different compositions. Waspaloy is often used in aerospace applications due to its excellent high-temperature strength and corrosion resistance; components such as turbine blades or exhaust systems could benefit from its use because they must be able to withstand extreme temperatures without breaking down or corroding over time. It is also used in some medical applications, such as implants, because of its biocompatibility with the body, which makes it less likely to cause irritation or adverse reactions when inserted into the body.

Hastelloy, on the other hand, tends to be used primarily in chemical processing equipment since its greater corrosion resistance lends itself well to being exposed to harsh chemicals while still maintaining good structural integrity over long periods of time. It can also be used in some aerospace applications where additional corrosion resistance is needed or where components need extra heat resistance due to their proximity to hot exhaust systems or turbines etc., though typically not as much as other alloys like Inconel or Stellite 6B would be used for this purpose instead of Hastelloy itself due to cost considerations amongst other factors.


Waspaloy and Hastelloy are two very different alloys that have specific uses based on their compositions and properties. While both have excellent strength at high temperatures along with good corrosion resistance, they differ primarily in terms of cost-effectiveness – Waspaloy tends to be cheaper overall – and in terms of corrosion resistance – Hastelloy has higher levels of chromium which gives it better protection against corrosive substances like acids or alkalis, etc. Therefore each has a place within certain industries depending on what type of application they’re being used for; those wishing to use either should research further into them before settling on one option over the other for their project needs!

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