Kovar is made up of 29% nickel, 17% cobalt, .2% silicon, .3% manganese and 53.5% iron. Kovar is known for its low coefficient of thermal expansion. Kovar end uses are usually glass sealing in the electronics industry.

Kovar strip: THK 0.05 – 1.0 mm, Width 20-280mm

Kovar sheet: THK 1.0-3.0 mm, Width 280mm

Kovar plate: THK 4.5-20mm

Kovar bar: Dia. 20-100 mm

Kovar wire: Dia. 0.1-6.0 mm

Kovar tube: OD. 0.5-6.0mm, OD 6.0-30.0 mm