Home > Products > Precision Alloys > KOVAR ALLOY
KOVAR ALLOY
- 500 Metric Ton / Metric Tons per Month
- Shanghai
- T/T
Product Details
Brand Name: | Brilliance | Place of Origin: | China | Model Number: | BL-0108 |
Type: | Nickel Strip | Application: | Vacuum Electronics | Ultimate Strength (≥ MPa): | 517 |
Grade: | FeNi29Co17 | Elongation (≥ %): | 30% | Powder Or Not: | Not Powder |
Ni (Min): | 29% |
Product Description
KOVAR
Type Analysis
Carbon: 0.02Max, Nickel: 29.0Max, Iron: Balance, Silicon: 0.20Max.
Manganese: 0.30Max, Cobalt: 17.0Max.
Description
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.
Physical Properties
Specific gravity.......................................8.36
Curie temperature
°F.................................................... 815
°C.................................................... 435
Density lb/cu in............................................... 0.302
kg/cu m............................................... 8359
Melting Point
°F.................................................. 2640
°C................................................. 1450
Thermal conductivity
Btu-in/ft²/hr/°F...................................... 120
W/m-K......................................................17.3
Electrical resistivity
ohm-cir mil/ft......................................... 294
microhm-mm......................................... 490
Modulus of elasticity
psi x 10(6) ..................................... 20
MPa x 10(3) .................................. 138
Contact Us
- Changzhou Brilliance Special Steel Co., Ltd.
- Contact nameDavid
- Phone86-519-89986880
- AddressXinbei Changzhou,Jiangsu
Precision Alloys | Pure Nickel | High-temperature Alloys | Anti-corrosion Alloys |
Thermal Spraying Wire | Capillary Tube | Inconel Series | Incoloy Series |
Monel Series | Nimonic Alloys | Udimet Alloys | Welding Wire |
- ASTM F15 Kovar Bar
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- Nickel-Chromium Alloy, Inconel 625
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- Alloy 42, ASTM F30, NILO 42
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- Alloy C22
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