Invar 36® Superalloy

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Chemical Analysis


.15 max


.60 max


.006 max


.004 max


.40 max


.25 max


36.0 nom


.50 max



Common Trade Names: Invar 36®, Nilo 6®, Pernifer 6®

Invar 36® is a nickel-iron alloy that contains 36% nickel and possesses a rate of thermal expansion approximately one-tenth that of carbon steel. Alloy 36 maintains nearly constant dimensions over the range of normal atmospheric temperatures, and has a low coefficient of expansion from cryogenic temperatures to about 500°F. This nickel iron alloy also retains good strength and toughness at cryogenic temperatures.

In addition, Invar 36® can be hot formed, cold formed or machined using processes similar to austenitic stainless steels.

Why Choose Invar 36®?

Invar alloys are widely known and utilized because they exhibit a coefficient of thermal expansion (CTE) that is close to zero. This beneficial quality has made UNS K93600 one of the most effective alloys for the manufacturing of precision instrumentation. Alloy 36 is generally thought of as the metal of choice for any type of low expansion application, because it has a very small CTE.


Invar 36® Available Formats

As an exclusive Invar 36® supplier we stock alloy UNS K93600 in a wide range of formats, including:

Magellan Metals is your premiere Invar 36® supplier. Contact us for more information on our alloy 36 products, or request a quote today.

Invar 36® Applications

As a direct Invar 36® supplier we provide nickel iron alloy 36 to numerous industries where dimensional changes due to temperature variation must be minimized, some of the applications where UNS K93600 is utilized, include:

  • Aircraft controls
  • Optical & laser systems
  • Radio & electronic devices
  • Composite forming tools & dies
  • Cryogenic components

Contact Magellan Metals Today

As an exclusive Invar 36® supplier contact us for more information on the benefits of UNS K93600, call Magellan Metals at (203) 838-5700, or request a quote today.