Home > Precision Alloy >

Kovar Alloy K Precision Alloy For Glass Sealing In High-Reliability Applications

Product Categories

Copper Nickel Alloy Wire [350]
Electric Resistance Wire [348]
Thermocouple Bare Wire [211]
FeCrAl Alloy [314]
Thermocouple Cable [247]
Nicr Alloy [466]
Thermal Spray Wire [216]
Furnace Heating Element [66]
Precision Alloy [338]
Copper Alloy [76]
Nickel Alloy [155]
Enamelled Wire [78]
High Temp Alloy [68]
Thermocouple Connector [30]

Shanghai Tankii Alloy Material Co.,Ltd

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

Kovar Alloy K Precision Alloy For Glass Sealing In High-Reliability Applications

Name: Kovar Alloy K Precision Alloy For Glass Sealing In HighReliability Applications
Brand: Tankii
Price: 1 USD

China Kovar Alloy K Precision Alloy For Glass Sealing In High-Reliability Applications wholesale

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

Contact Now

**ASTM F 15 Nickel Iron Cobalt Kovar Alloy Strip 1*200m**

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

Availabi

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 ®

Product Tags: