OEM ASTM Pernifer 2918 Kovar Alloy Steel Plates / High Strength NILO K Alloy Steel Strips
Descrition:
Kovar Alloy/ASTM F-15/NILO K/Pernifer 2918 Strip
General Introduction
Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Extensive quality controls are employed in the manufacture of this alloy to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining.
Applications:
Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.
This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In integrated circuits, it has been used for the flat pack and the dual-in-line package.
Specifications:
Chemical Compostion
|
Kovar Chemical Composition (Basic Density 8.36) |
|||||||||||||
|
Weight % |
Ni |
Fe |
Co |
C |
Mn |
Si |
Al |
Cr |
Mg |
Zr |
Ti |
Cu |
Mo |
|
Alloy K Kovar |
29.0 |
53.0 |
17.0 |
0.04 max |
0.50 max |
0.20 |
0.10 max |
0.20 max |
0.10 max |
0.10 max |
0.10 max |
0.20 max |
0.20 max |
Mechanical Properties
|
Material |
Condition |
Yield Strength (0.1% Offset) |
Tensile Strength |
Elongation % |
||
|
psi |
MPa |
psi |
MPa |
|||
|
Alloy K Kovar |
Annealed |
49,000 |
340 |
75,000 |
520 |
42 |
