Kovar tube made according to ASTMF-15; DIN 1.3981.

Kovar tube chemical:

Ni 29%

Co 17%

Si 0.1%

Mn 0.3%

C 0.02%

Fe Balance

Typical Physical Properties:

Density : 0.302 lb/in3

Specific Gravity: 8.36

Curie Temperature: 435ºC

Melting Point: 1450ºC

Specific Heat: 0.105 cal/gm/ºC at 0ºC, 0.155 cal/gm/ºC at 430ºC

Heat of Fusion: 64 cal/gm

Thermal Conductivity: 17.3 W/m.K

Electrical Resistivity: 490 micro-Ohm/mm