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Iron Nickel Cobalt Alloy Kovar
Iron Nickel Cobalt Alloy Kovar
Supplier Info
[China Supplier]
Contact Person : Ms. Hua Fang
Tel : 086-0523-83999006
Fax : 086-0523- 83765353
Product Detail
1)low expansion alloy 2)coefficient of thermal expansion similar to that of hard glass Specifications

Iron Nickel Cobalt Alloy Kovar 1)low expansion alloy 2)coefficient of thermal expansion similar to that of hard glass

Iron Nickel Cobalt Alloy Kovar

A vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Kovar alloy has been used for making glass to metal seals. This alloy has found wide application in power tubes, microwave tubes, transistors and diodes.

Ni 29             Co 17Fe Balance    Si 0.10Mn 0.30         C 0.02 maximum

Typical Physical Properties:Density: .302 lb/in3Specific Gravity: 8.36Curie Temperature: 435 oCMelting Point: 1450 oCSpecific Heat: .105 cal/gm/ oC at 0 oC.155 cal/gm/ oC at 430 oCHeat of Fusion: 64 cal/gmThermal Conductivity: 17.3 W/m · KElectrical Resistivity: 490 microhm/mm

Iron Nickel Cobalt Alloy Kovar

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