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

Brand Name:Tankii
Certification:ISO Rohs
Model Number:Kovar 4J29
Minimum Order Quantity:100Kg
Delivery Time:15-25days
Payment Terms:T/T, L/C, D/P, Western Union, MoneyGram
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Location: Shanghai Shanghai China
Address: 1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Supplier`s last login times: within 1 hours
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Product Details

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 %NiFeCoCMnSiAlCrMgZrTiCuMo
Alloy K
Kovar
29.053.017.00.04 max0.50 max0.200.10 max0.20 max0.10 max0.10 max0.10 max0.20 max0.20 max

Typical Mechanical Properties

MaterialConditionYield Strength (0.1% Offset)Tensile StrengthElongation %
psiMPapsiMPa
Alloy K
Kovar
Annealed49,00034075,00052042

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

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

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