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Kovar Alloy F15

Shapes Available

  • Coil
  • Round Bar
  • Sheet


  • Aerospace
  • Electrical
  • Manufacturing
  • Medical

Industry Names

  • ASTM F15 Alloy
  • Kovar


  • Exotic
  • Specialty Steel


  • AMS I-23011C CL 1
  • ASTM F1466
  • ASTM F15
  • MIL I 23011C Class 1
  • UNS K94610


  • Computers
  • Hybrids
  • Microwaves
  • Semi Conductors


  • Extremely Stable
  • Good Electrical Alloy

Kovar is a nickel-cobalt based iron alloy. This alloy is a controlled expansion alloy uses for ceramic and glass metal seals. Kovar is produced to deal with microwave, semi-conductor, computer and other aerospace and space applications. Kovar is generally very stable down to low temperatures.

Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Chemical Composition
C- .06
Co- 17.0
Cr- .20
Cu- .2
Fe- Bal
Mn- .5
Mo- .2
Ni- 29.00
P- .025
S- .025
Si- .2
Zr- .25

DISCLAIMER: The information provided on this Web site, technical or otherwise, is merely for informational purposes, and is not intended to serve as a guide, manual, instructions, or any kind reference for proper safety procedures or material purchasing. Michlin Metals makes no warranty, express or implied, based on the statements on this Web site and, as such, will not be liable for any damages, either direct or indirect, including but not limited to consequential damages, such as damages for loss of profits, that may arise based on reliance on the information provided on this Web site. Some information has been referenced from reliable industry sources. Tradenames listed are the sole property of the tradename owners. Michlin Metals typically provides branded products through its relationships with mills and authorized re-sellers. Equivalent non-branded product is sometimes also available through certified sources of such products. Michlin Metals will never substitute non-branded product when branded product is requested.

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