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Home ProductsNickel Based AlloysASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion
ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion
ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion

ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion

Product Details:
Place of Origin: CHINA
Brand Name: JINXING
Certification: ISO 9001
Model Number: K94610 - Kovar 4J29 Bars
Payment & Shipping Terms:
Minimum Order Quantity: 30 kg
Price: Negotiable
Packaging Details: plywood cases
Delivery Time: 15-20 days
Payment Terms: T/T, D/P, L/C, D/A, Western Union, MoneyGram
Supply Ability: 2000 kg per month
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Detail Information
Material: Kovar 4J29 Bars Size: Dia 8.5 - 100mm X L
Density: 8.367 G/cc Tensile Strength: 593 MPa
Hardness: 69 HRB Elongation: 30%
Thermal Conductivity: 17.3 W/m. K Applications: Sealing
Highlight:

Nickel Based Alloys Kovar Bars

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ASTM F15 Kovar Bars

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UNS K94610 Kovar Bars

Product Description

ASTM F15 UNS K94610 Kovar 4J29 Bars With High Thermal Expansion

Kovar 4J29 Bars is also known as Kovar alloy. The alloy has a linear expansion coefficient similar to that of borosilicate hard glass at 20 ~ 450℃, a higher Curie point, and a good low temperature microstructure stability. The oxide film of the alloy is dense and can be well infiltrated by glass. And does not interact with mercury, suitable for use in mercury discharge instrument. It is the main sealing structure material of electric vacuum device.

 

Chemical Composition of Kovar 4J29 Bars

Chemical Compositions
Element Content
NICKEL (Ni) 29
COBALT (Co) 17
MANGANESE(Mn) 0.5
SILICON (SI) 0.2
SULFUR (S) 0.025
CHROMIUM(Cr) 0.2
COPPER (Cu) 0.2
MOLYBDENUM (Mo) 0.2
ZIRCONIUM (Zr) 0.1
PHOSPHORUS (P) 0.025
CARBON (C) 0.06
IRON BALANCE

 

Product specifications of Kovar 4J29 Bars

  • Density: 0.302 lbs./in3
  • Specific Gravity: 8.36 g/cc
  • Curie Temperature: 435o C / 815o F
  • Melting Point: 1450o C / 2640o F
  • Specific Heat: 0.105 cal/gm/ o C at 0o C & 0.155 cal/gm/ o C at 430o C
  • Thermal Conductivity: 17.3 W/m ⋅ K
  • Electrical Resistivity: 49 microhm/cm

Kovar 4J29 Bars Picture:

ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion 0ASTM F15 Nickel Based Alloys UNS K94610 Kovar 4J29 Bars With High Thermal Expansion 1

Application of Kovar 4J29 Bars

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.

Tag:

nickel based superalloys

ni based alloys

ni based superalloys

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