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

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

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

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 %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

 

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: Glass Sealing Precision Alloy   Alloy K Precision Alloy   High-Reliability Precision Alloy  
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