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

Kovar / Nilo K (ASTM F15)

Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal SealsKovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal SealsKovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal SealsKovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
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 % Ni Fe Co C Mn Si Al Cr Mg Zr Ti Cu Mo
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 0.10 max 0.10 max 0.20 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 ®
Product tags

glass to metal sealing alloys

,

insulated stainless steel pint glass

,

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

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Product Detail
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
Contact Supplier
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals
Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals

Shanghai Tankii Alloy Material Co.,Ltd

Verified Supplier
11 Years
shanghai, shanghai
Since 1981
Business Type :
Manufacturer, Exporter
Main Products :
Copper Nickel Alloy Wire, Electric Resistance Wire, Thermocouple Bare Wire
Total Annual :
8000000-100000000
Employee Number :
90~100
Certification Level :
Verified Supplier
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