Kovar

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We could produce Kovar forging parts,Kovar forged rings, Kovar Rolled Rings,Kovar forging flanges, Kovar forging round bars, Kovar forged disks, Kovar forging bushings,Kovar forging discs,Kovar forged tubes, Kovar forging sleeves,Kovar forging tube sheets, Kovar forging shafts,Kovar forging pipes as per the requirement of the client
Kovar is a nickel-iron-cobalt alloy containing approximately 29% nickel and 17% cobalt

We could delivery Kovar forging material as per the standard of ASTM F-15

We use EAF+VOD-ESR melting methods to melt the material of Kovar

Weight %

Kovar

29.0

53.0

17.0

0.04 max

0.50 max

0.20

0.10 max

0.20 max

0.10 max

0.20 max

The mechanical property of kovar is as follows:

Tensile Strength	Min 75KSI	Min 520MPA
Yield Strength	Min 49KSI	MIN 340MPA
Elongation	Min 42%

Kovar alloy is the annealed condition,attained by heating, preferably in hydrogen or cracked ammonia, to 850-1000°C (1560-1830°F).

Kovar could be oxidized by heating in air to temperatures in the 600-1000°C (1110-1830°F) range, depending on the thickness of oxide film required

The Chemical Composition of Kovar is as follows:

Due to special mechanical properties of Kovar forging parts, there are many wide uses as followings:

Kovar seamless rolled rings and Kovar forging shafts that is used in in tooling for Power tubes, microwave tubes, transistors, diodes, hybrid packages, and other kinds of scientific instruments

Kovar forged shafts,Kovar forging pipes, Kovar forged tube,forged tube sheet, forged flanges that are used in thermostatic bi-metal strip,and for glass sealing applications in microelectronic components, vacuum devices and electric lamp bulbs

Kovar forging shafts,Kovar forging flanges ,Kovar forged ring,Kovar forging pipes that is used in high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

Kovar forged bushings,Kovar forged sleeves,Kovar forged disk,Kovar forged discs that is used in Offshore and onshore industry, such as Positioning devices,Bimetal thermostats,Advanced composite molds for aerospace industry

Kovar open die forging parts,forging pieces,forging nozzles forged crankshaft that is used in Dimensionally stable instruments and optical devices.Containers for LNG tankers,Transfer lines for LNG

Kovar forged valve stems, forged valve parts, forged valve seat rings,forged valve blocks,forged bodies that are used in ball valves, check valves, strainers ,globe valve, gate valve,Plug valve and so on

Kovar forging rings, Kovar forging spindle, Kovar forging bars,Kovar forging gears that are used in Echo boxes and filters for mobile telephones,Magnetic shielding,Small electrical transformers,Metrology devices

Kovar forged products,Kovar forged nozzles,Kovar forging eccentric shaft that are used on Precision condenser blades,Radar and microwave cavity resonators,Special electronic housings

Seals, spacers, and specialized frames

Kovar forged wheels, forged manifold,forging roll that are used in Scientific instruments,Electrical circuit breakers,Temperature regulators,Clock balance wheels,Pendulum clocks

Our Kovar forged parts will be Ultrasonic testing as per standard, EN10228-3,Sep1921,ASTM A388 and so on

We could supply Kovar super allloy forging parts certificate as per the standard of EN10204-3.1 or EN10204-3.2 of third party

Except Kovar forgings, we could also supply NILO alloy K forgings material,UNS K94610 forged parts, 1.3981 forged products,ASTM F-15 forged pieces, Pernifer 2918 forging material,