Astm F-15,1.3981, K94610. Standard specifications for Iron, Nickel, Cobalt, Alloy Sealing.
Technical characteristics
Alloy Kovar, consists of 52-54% - of iron, 29% - nickel, the rest - cobalt. The presence of cobalt in the composition significantly increases the cost of the material. This magnetic alloy has a specific gravity of 8.2 g/cm3, a good thermal conductivity of about 19 W/m ° C, close to zero linear expansion coefficient, the conductivity is about twice that of invar.
Percentage composition
| Fe | Ni | Co | P | S | C | Cr | Ti | Al | Cu | Si | Mn |
| base | 29 | 17-18 | ≤0.015 | ≤0.015 | ≤0,03 | ≤0,1 | ≤0,1 | ≤0,2 | ≤0,2 | ≤0,3 | ≤0,4 |
The alloy is subject to corrosion in a humid environment. It is coated with silver in the manufacture of capacitors. A wire of this alloy soldered into glass forms a leak-tight, reliable connection used in the construction of lamp current leads and cabinets of electrovacuum devices.
Applications
The production of capacitors with small TKE and variable capacitance and vacuum tube devices for power engineering.
Furnizor
Supplier Evek GmbH offers to buy precision alloys at the best price in this segment of rolled products. We offer to buy Kovar, Astm F-15,1.3981, K94610 from specialized warehouses of Evek GmbH with delivery in any city. Full compliance with modern quality standards. Timely delivery is provided by representative offices in Eastern European cities.
Buy, bargain price
Supplier offers precision alloys Astm F-15,1.3981, K94610, the price - due to the technological features of production without including additional costs. The website of Evek GmbH contains information on the latest arrivals of products. Always available precision alloys: Kovar, Astm F-15,1.3981, K94610, price - optimal from the supplier.
