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. For more information on Kovar and other electrical alloys, check out our latest video below or click here for the transcript. Check out the video below for a deep dive into Kovar!



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
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