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Kovar

A vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Kovar alloy has been used for making glass to metal seals. This alloy has found wide application in power tubes, microwave tubes, transistors and diodes.

Chemical Composition: Carbon 0.002% max. Manganese 0.30%, Silicon 0.20%, Nickel 29.00%, Cobalt 17.00%, Iron Balance. Specific Gravity 8.36, Density 0.302 lbs. / in.^3, Melting point 1450°C.

Kovar is available in wire, sheet, and rod. Many items are in stock or have short fabrication times. Typical wire sizes range from 0.003 inch diameter to 0.375 inch diameter. Contact us to find out more. Surepure has sputtering targets of various sizes. Contact us to learn more about our quick delivery to meet your exact requirements.

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The products below are representative of what we sell. If you don't find what you're looking for, please request a quote or contact us.

64 results matching: Kovar

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Kovar Wire, 0.010 inch diameter x 1 foot long

Product #:	10996
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.010 in. / 0.254 mm / 30 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	12 in. / 1 ft. / 0.305 m

$90.00
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Kovar fill tubes, 0.076 in. OD x 0.046 in. ID x 1.50 in. long x 1 piece

Product #:	4734
Material:	Kovar
Form:	Tubing
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	1.50 in. / 38.1 mm
Kovar Subcategory:	Kovar Tubing
No. of Pieces:	1 piece
Outside Diameter:	0.076 in. / 1.93 mm
Inside Diameter:	0.046 in. / 1.17 mm

$90.00
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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 2 feet x spool

Product #:	10302
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.00045 in. / 0.011 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.292 in. / 7.42 mm
Length:	24 in. / 2 ft. / 0.610 m
Sub-Form:	Ribbon, by spool
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x spool, stress relieved temper Close out.

$90.00
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Kovar Wire, 12 gauge x 5 feet long

Product #:	8910
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.081 in. / 2.057 mm / 12 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	5 ft. / 1.524 m
Sub-Form:	Wire, by coil

$98.00
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Kovar Rod, 0.0625 inch diameter x 1 foot long

Product #:	10779
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.0625 in. / 1.588 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	12 in. / 1 ft. / 0.305 m
Sub-Form:	Rod, straight length
Description:	Subject to prior sale.

$98.00
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Kovar-ribbon-0.002x0.005x25ft

Product #:	3849
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.002 in. / 0.051 mm / 44 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.005 in. / 0.127 mm
Length:	25 ft. / 7.620 m

$100.00
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Kovar-ribbon-0.002x0.006x25ft

Product #:	3851
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.002 in. / 0.051 mm / 44 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.006 in. / 0.152 mm
Length:	25 ft. / 7.620 m

$100.00
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Kovar Rod, 0.0625 inch diameter x 2 feet long

Product #:	10778
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.0625 in. / 1.588 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	24 in. / 2 ft. / 0.610 m
Sub-Form:	Rod, straight length
Description:	Subject to prior sale.

$104.00
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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 5 feet x spool

Product #:	10298
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.00045 in. / 0.011 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.292 in. / 7.42 mm
Length:	5 ft. / 1.524 m
Sub-Form:	Ribbon, by spool
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x spool, stress relieved temper Close out.

$105.00
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Kovar Wire, 0.010 inch diameter x 5 feet long

Product #:	10995
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.010 in. / 0.254 mm / 30 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	5 ft. / 1.524 m

$105.00
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Kovar Rod, 0.0625 inch diameter x 3 feet long

Product #:	9118
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.0625 in. / 1.588 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	3 ft. / 0.914 m
Description:	Subject to prior sale.

$126.00
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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 10 feet x spool

Product #:	10299
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.00045 in. / 0.011 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.292 in. / 7.42 mm
Length:	10 ft. / 3.048 m
Sub-Form:	Ribbon, by spool
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x spool, stress relieved temper Close out.

$130.00
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Kovar Wire, 0.010 inch diameter x 10 feet long

Product #:	10994
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.010 in. / 0.254 mm / 30 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	10 ft. / 3.048 m

$130.00
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Kovar Wire, 12 gauge x 10 feet long

Product #:	8911
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.081 in. / 2.057 mm / 12 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	10 ft. / 3.048 m
Sub-Form:	Wire, by coil

$145.00
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Kovar Wire, 0.010 inch diameter x 15 feet long

Product #:	10993
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.010 in. / 0.254 mm / 30 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	15 ft. / 4.572 m

$165.00
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Kovar fill tubes, 0.076 in. OD x 0.046 in. ID x 1.50 in. long x 5 pieces

Product #:	4733
Material:	Kovar
Form:	Tubing
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	1.50 in. / 38.1 mm
Kovar Subcategory:	Kovar Tubing
No. of Pieces:	5 pieces
Outside Diameter:	0.076 in. / 1.93 mm
Inside Diameter:	0.046 in. / 1.17 mm

$175.00
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Kovar Rod, 0.0625 inch diameter x 6 feet long as 3 foot lengths

Product #:	9119
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.0625 in. / 1.588 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	6 ft. / 1.829 m
Sub-Form:	3 foot straight length(s)
Description:	Subject to prior sale.

$186.00
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Kovar Wire, 0.010 inch diameter x 20 feet long

Product #:	10992
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.010 in. / 0.254 mm / 30 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	20 ft. / 6.096 m

$190.00
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Kovar-ribbon-0.002x0.005x100ft

Product #:	3850
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.002 in. / 0.051 mm / 44 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.005 in. / 0.127 mm
Length:	100 ft. / 30.48 m

$200.00
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Kovar-ribbon-0.002x0.006x100ft

Product #:	3852
Material:	Kovar
Form:	Sheet/Foil/Ribbon/Strip
Thickness:	0.002 in. / 0.051 mm / 44 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Width:	0.006 in. / 0.152 mm
Length:	100 ft. / 30.48 m

$200.00
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