Kovar Alloy

Product Details
Customization: Available
Type: Nickel Pipe
Condition: Soft
Gold Member Since 2015

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Registered Capital
5000000 RMB
Type of Ownership
Private Owner
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Basic Info.

Payment Currency
USD/Eur/RMB
Quality Test
Mill Test Report
Delivery Time
5-20days
Product
Kovar Alloy
Brand Name
Wisdom
Surface
Bright
Transport Package
Standard or Customized
Specification
ISO 9001
Trademark
WISDOM
Origin
Shanghai, China
Production Capacity
5000 Ton/Year

Product Description


Kovar Alloy
Introduction
Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Extensive quality controls are employed in the manufacture of this alloy to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining.

Typical Uses and Applications
Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In intergrated circuits, it has been used for the flat pack and the dual-in-line package.

Product details
Chemical composition:

Grade
C% P% S% Mn% Si% Cu% Cr% Mo% Ni% Co% Fe%
Kovar Max 0.03 Max 0.020 Max 0.020 Max 0.50 Max 0.30 Max 0.20 Max 0.20 Max 0.20 28.5-29.5 16.8-17.8 Bal.


Specifications:

Grade
UNS Werkstoff Nr.
Kovar K94610 1.3981


Physical Properties:

Grade
Density Melting Point
Kovar 8.17 g/cm3 1449°C


Mechanical Properties:

Grade
Tensile Strength N/mm² Yield Strength N/mm² Elongation
Kovar 517 345 30


Coefficient of Expansion

Alloy
Linear Coefficient of Thermal Expansion ,10-6/ºC
20-200ºC 20-300ºC 20-400ºC 20-450ºC 20-500ºC 20-600ºC 20-700ºC 20-800ºC
Kovar 5.9 5.3 5.1 5.3 6.2 7.8 9.2 10.2


Available forms: 
Kovar wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.

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