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Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals

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Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals

Name: Kovar Nickel Iron Cobalt Alloy For HighReliability GlassToMetal Seals
Brand: Tankii
Price: 1 USD

Quality Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals for sale

Brand Name : Tankii

Model Number : Kovar 4J29

Certification : ISO Rohs

Place of Origin : China

MOQ : 100Kg

Payment Terms : T/T, L/C, D/P, Western Union, MoneyGram

Supply Ability : 50000 per month

Delivery Time : 15-25days

Packaging Details : Standard export wooden box packing.

Application : Industrial

Color : Silver

Hardness : HRC45-55

Heat Treatment : Annealing

MOQ : 1 Ton

Material : Precision Alloy

Packaging : Wooden Case

Processing Technology : Forging

Shape : wire strip sheet rod bar tube

Size : Customized

Surface Treatment : Polishing

Tolerance : High Precision

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Kovar / Nilo K (ASTM F15)

Technical Data Sheet

Kovar (Alloy K) is a nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. Kovar (Alloy K) is used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Kovar (Alloy K) is used for high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

Kovar Chemical Composition (Basic Density 8.36)

Weight %

Alloy K
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

Typical Mechanical Properties

Material	Condition	Yield Strength (0.1% Offset)		Tensile Strength		Elongation %
		psi	MPa	psi	MPa
Alloy K Kovar	Annealed	49,000	340	75,000	520	42

Availability
Alloy K / Kovar is available (further details) in Bar, Rod, Tube, Sheet, Strip, Coil, Plate and Wire. For all stock availability contact Sales for further availability.

Specifications
UNS K94610
Werkstoff Nr 1.3981
DIN 17745
ASTM F 15
AMS 7726 Wire
AMS 7727 Bars and Forgings
AMS 7728 Sheet, Strip and Plate
MIL-I-23011 class 1
AFNOR NF A54-301
S.E.W 385
DILVER P

Registered Names
Kovar ®
Nicoseal ®
Nicosel ®
Rodar ®
Telcoseal ®
Sealvar ®
Alloy 29-17 ®
Nilo K ®
Dilver ®
Pernifer 29-18 ®

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