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Kovar Bar
- 500 Metric Ton / Metric Tons per Month
- Shanghai
- T/T
Product Details
Brand Name: | Brilliance | Place of Origin: | China | Model Number: | BL-0167 |
Type: | Nickel Bar | Application: | Vacuum Electronics | Grade: | FeNi29Co17 |
Powder Or Not: | Not Powder | Ni (Min): | 29% |
Product Description
Kovar Bar
Character of Kovar
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. 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 intergrated circuits, it has been used for the flat pack and the dual-in-line package.
Kovar alloy is magnetic at all temperatures below the Curie point. Magnetic properties will depend upon heat treatment; the lower hardness, the higher permeability values and lower hysteresis loss.
Density: 8.36g/cm3
Curie Temp: 435°C(815°F)
Introduction of Kovar
Kovar is a Ni-Fe alloy with 29% Nickel, 17% Cobalt and the remaining balance is Iron. The expansion characteristics of Kovar match both borosilicate (or Pyrex) glasses and alumina ceramics, making it one of the most popular of the controlled expansion alloys for hermetic sealing applications.
Chemical composition of Kovar alloy
C≤0.020, Ni≤29.0, Si≤0.20, Mn≤0.30, Co≤17.0, Fe=remainder
Delivery
Huge stock of strip, bar and wire in stock. Fast delivery with 5 days for customized size.
Forms available: Plate, sheet, strip, wire, rod, bar, forging, tube, pipe, capillary, square pipe, and parts
Application of Kovar
Kovar is widely used in applications such as power tubes, microwave tubes, transistors, diodes, hybrid packages and other kinds of scientific instruments.
Equal grades
4J29(China grade), ASTM F-15, NILO K, Pernifer 2918, Rodar, Dilvar P1, UNS K94610, 29-17 alloy
Standards
ASTM-15
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 |
- Super Alloy, Inconel 718 Round Bar
- Inconel Series, Alloy 600, UNS N06600
- INCOLOY A-286, UNS S66286
- Invar, INVAR 36, Werkstoff 1.3912
- Kovar (ASTM F-15)
- Alloy 800HT, UNS N08811
- UDIMET 188, Haynes 188
- Hastelloy C22, UNS N06022
- Hastelloy X, UNS N06002
- Inconel 625, UNS N06625
- Inconel 600, UNS N06600
- Monel K-500, Alloy K-500
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