Kovar, ASTM F-15
MATERIAL OVERVIEW
Characteristics: Kovar is an iron-nickel-cobalt alloy with a coefficient of thermal expansion similar to that of hard (borosilicate) glass. This makes it especially suitable for uses which require a matched-expansion seal between metal and glass parts. Kovar finds usage in the electronics industry for metal parts bonded to hard glass envelopes for such devices as power tubes, x-ray tubes, etc., and other applications requiring glass-to-metal seals.
GENERAL PROPERTIES
Density: |
8.36 g/cm3 |
Melting Point: |
2642 oF (1450 oC) |
Thermal Conductivity: |
16.8 W/mk |
Electrical Resistivity: |
0.49 microhm-m |
Expansion Coefficient: |
5 ppm/oC
|
TYPICAL ANALYSIS - Composition in percent
Material / Purity: |
Kovar |
| Fe | Balance |
| Ni | 29 |
| Co | 17 |
| Mn | 0.30 |
| Si | 0.10 |
Send Inquiry to This Supplier
You May Also Like
-
Wholesale Invar 36 Seamless PipeUS$ 30 - 35MOQ: 100 Kilograms
-
Hot-selling Invar 36 Seamless Pipe for Low Thermal Expansion ApplicationsUS$ 35 - 45MOQ: 100 Kilograms
-
Invar 36 Bar for ThermostatsUS$ 15 - 20MOQ: 50 Kilograms
-
Kovar Bar for Glass-to-metal SealingUS$ 25 - 30MOQ: 50 Kilograms
-
Ni50 for Reed SwitchUS$ 20 - 25MOQ: 50 Kilograms
-
Iron Nickel Cobalt Alloy Bar ASTM F15 KovarUS$ 20 - 25MOQ: 50 Kilograms
-
Sell FeNi Alloy 42 Bar Alloy 48 Alloy 52 Bar Manufacturer Expansion Alloy Alloy 42US$ 20 - 25MOQ: 50 Kilograms
-
Nickel Iron Alloy 42/ Nilo 42 (ASTM F30)US$ 18 - 25MOQ: 50 Kilograms
-
Soft Magnetic Alloy for Electrical GeneratorsUS$ 100 - 120MOQ: 50 Kilograms
-
3J1 Elastic AlloysUS$ 25 - 30MOQ: 100 Kilograms