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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.

72 results matching: Kovar

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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, 12 gauge x 25 ft long

Product #:	4613
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:	25 ft. / 7.620 m
Sub-Form:	Wire, by spool

$205.00
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Kovar Wire, 12 gauge x 50 ft long

Product #:	4612
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:	50 ft. / 15.2 m
Sub-Form:	Wire, by spool

$351.00
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Kovar Wire, 12 gauge x 100 ft long

Product #:	4610
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:	100 ft. / 30.48 m
Sub-Form:	Wire, by spool

$508.00
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Kovar Wire, 12 gauge x 55 ft long

Product #:	11127
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:	180 ft. / 55 m
Temper:	Annealed (soft)
Sub-Form:	Wire, by spool

$687.50
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Kovar Wire, 12 gauge x 200 ft long

Product #:	4611
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:	200 ft. / 60.96 m
Sub-Form:	Wire, by spool

$730.00
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Kovar Rod, 0.125 inch diameter x 6 feet long as 3 foot lengths

Product #:	12273
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.125 in. / 3.175 mm / ~8 gauge
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.

$125.00
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Kovar Rod, 0.125 inch diameter x 12 feet long in 3 foot lengths

Product #:	12274
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.125 in. / 3.175 mm / ~8 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	12 ft. / 3.657 m
Sub-Form:	3 foot straight length(s)
Description:	Subject to prior sale.

$176.00
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Kovar Rod, 0.125 inch diameter x 18 feet long in 3 foot lengths

Product #:	12275
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.125 in. / 3.175 mm / ~8 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	18 ft. / 5.486 m
Sub-Form:	3 foot straight length(s)
Description:	Subject to prior sale.

$225.00
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Kovar Rod, 0.125 inch diameter x 18 feet long in 6 foot lengths

Product #:	12276
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.125 in. / 3.175 mm / ~8 gauge
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	18 ft. / 5.486 m
Sub-Form:	6 foot straight length(s)
Description:	Subject to prior sale.

$240.00
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Kovar Rod, .400 inches diameter x 25 centimeters long x 4 pieces

Product #:	6910
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.400 in. / 10.16 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	9.84 in. / 25.0 cm
No. of Pieces:	4 pieces
Lead time:	3 weeks

$400.00
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Kovar Rod, 0.75 inch diameter x 6 feet long x 2 rods

Product #:	12207
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.750 in. / 19.1 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	6 ft. / 1.829 m
No. of Pieces:	2 pieces
Lead time:	3 - 4 days
Description:	12 feet = 6 feet long/ rods x 2 rods Subject to prior sale

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Kovar Rod, 0.75 inch diameter x 6 feet long x 8 rods

Product #:	12208
Material:	Kovar
Form:	Wire/Rod
Diameter:	0.750 in. / 19.1 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	6 ft. / 1.829 m
No. of Pieces:	8 pieces
Lead time:	3 - 4 days
Description:	48 feet = 6 feet long/ rods x 8 rods Subject to prior sale

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Kovar Rod, 1 inch diameter x 3 feet long

Product #:	9856
Material:	Kovar
Form:	Wire/Rod
Diameter:	1.00 in. / 25.40 mm
Purity:	29% Nickel, 17% Cobalt, 0.2% Manganese, balance Iron
Length:	3 ft. / 0.914 m
Lead time:	1 - 2 days

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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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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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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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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 25 feet x spool

Product #:	10300
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:	25 ft. / 7.620 m
Sub-Form:	Ribbon, by spool
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x spool, stress relieved temper Close out.

$205.00
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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 50 feet x spool(s)

Product #:	10301
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:	50 ft. / 15.2 m
Sub-Form:	Ribbon, by spool(s)
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x spool(s), stress relieved temper Close out.

$370.00
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Glass Seal Kovar strip, 0.00045 inch thick x 0.292 inch wide x 1400 feet x spool

Product #:	10297
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:	1400 ft. / 426.7 m
Sub-Form:	Ribbon, by spool
Description:	.00045" +- 5% thick x .292" +.005" -0 wide x 1400 feet / spool, stress relieved temper Close out.

$420.00
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