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

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Shanghai Tankii Alloy Material Co.,Ltd

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-56110178

Contact Person:
Mr.Martin Lee
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Kovar Nickel Iron Cobalt Alloy For High-Reliability Glass-To-Metal Seals

Brand Name Tankii
Model Number Kovar 4J29
Certification ISO Rohs
Place of Origin China
Minimum Order Quantity 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
Detailed Product Description

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 ®
Product Tags: Nickel Iron Cobalt Alloy   Glass Metal Seals Nickel Iron Cobalt   Nickel Iron Cobalt Precision Alloy  
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