Chemical Machining & Etching Services

Invar Chemical Etching

Tecomet Inc. offers top of the line Invar chemical etching. Invar is a nickel-steel alloy that is used for its low coefficient of thermal expansion. The name Invar is derived from the word invariable, which refers to the material’s lack of expansion or contraction with temperature changes. Etched Invar parts are used by the electronics, telecommunications, and microwave industries. Invar etching is commonly used to produce shims, shadow masks, and microwave components.


We boast years of experience in etching Invar alloys, and our products are currently in commercial production. Even though Invar is one of the more difficult metals to etch, our expertise allows us to maintain the same level of quality across the board, regardless of difficulty. To learn more about out invar photo chemical machining contact us today.


Invar Material Composition
(Main Elements)

  • Iron 63.3%
  • Nickel 36.0%
Typical Grades
  • ASTM F1684
Common Uses
  • Shims
  • Masks
  • Microwave Components
  • Solar Panels
  • Low thermal expansion
  • Electronics
  • Telecommunications
  • Defese
  • Aircraft
  • Aerospace
  • Solar


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