Alloy Name: Kovar Wire
Uns Number: K94610
Description: Kovar wire is a low expansion alloy whose nickel iron cobalt chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. It is suitable for glass and ceramic sealing to metal.
Size/diameter (inches): 0.0200 - 0.1250
Specification: ASTM F-15
Conforms to SAE AMS-I-23011 Class 1
Temper: Annealed
1/4 Hard
1/2 Hard
3/4 Hard
4/4 Hard Fully Hardened
As Drawn
Typical Chemistry: Fe: 53.00 Nominal
Ni: 29.00 Nominal
Co: 17.00 Nominal
Mn: 0.50 Max
Si: 0.20 Max
C: 0.04 Max
Al: 0.10 Max
Mg: 0.10 Max
Zr: 0.10 Max
Ti: 0.10 Max
Cu: 0.20 Max
Cr: 0.20 Max
Mo: 0.20 Max
*Typical Chemistry listed above is for reference only and is not to be used for specification purposes.
Available Forms: Spools
Cut Lengths
Note For Non Stock Items:

If you need a non-stock item, we custom manufacture wire in most diameters and lengths.

Warranty Clause:

Bob Martin company believes the information contained herein to be reliable. However, the technical information is given without charge by Bob Martin Company and the user shall employ such information at its own discretion and risk. Bob Martin Company assumes no responsibility for results obtained or incurred from the use of such information in whole or in part.

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