Kovar Alloy 4J29 Plate , Invar Alloy 4J32,4J33,4J34,4J36 Sheet

Kovar Alloy 4J29 Plate is an iron cobalt nickel alloy with a thermal expansion coefficient similar to that of hard glass. As Kewa alloy is tough and versatile, extensive quality control is applied in the manufacturing process of UNS K94610 alloy to ensure uniform physical and mechanical properties, making drawing, stamping and processing easier. In addition, Kova? It is the most dynamic mechanical performance.

Product specifications of Kovar Plate

• Density: 0.302 lbs./in3
• Specific Gravity: 8.36 g/cc
• Curie Temperature: 435o C / 815o F
• Melting Point: 1450o C / 2640o F
• Specific Heat: 0.105 cal/gm/ o C at 0o C & 0.155 cal/gm/ o C at 430o C
• Thermal Conductivity: 17.3 W/m ⋅ K
• Electrical Resistivity: 49 microhm/cm

Chemical Composition of Kovar Plate

Kovar Alloy 4J29 Plate Picture:

Application of Kovar Plate

It is suitable for electric vacuum devices such as transmitting tube, oscillation tube, ignition tube, transistor, tube seal plug and relay shell. With a certain linear expansion coefficient in the temperature range of 20℃-450℃, it can be matched with hard glass and firmly sealed.

Application: Used for making iron nickel cobalt alloy strip, bar, plate and pipe with hard glass. It is suitable for electric vacuum devices such as transmitting tube, oscillation tube, ignition tube, transistor, tube seal plug and relay shell. With a certain linear expansion coefficient in the temperature range of 20℃-450℃, it can be matched with hard glass and firmly sealed.