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Super Alloys K94610 Kovar Bar ASTM F15 Thermal Expansion

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Super Alloys K94610 Kovar Bar ASTM F15 Thermal Expansion

Brand Name : JINXING

Model Number : K94610 - KOVAR Bar

Certification : ISO 9001

Place of Origin : CHINA

MOQ : 30 kg

Price : Negotiable

Payment Terms : T/T, D/P, L/C, D/A, Western Union, MoneyGram

Supply Ability : 2000 kg per month

Delivery Time : 15-20 days

Packaging Details : plywood cases

Material : KOVAR Bar

Size : dia 8 - 100mm x L

Density : 8.36 g/cc

Tensile Strength : 592 MPa

Hardness : 68 HRB

Elongation : 31%

Thermal Conductivity : 17.2 W/m. K

Application : sealing

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Super Alloys K94610 KOVAR Bar ASTM F15 Thermal Expansion

KOVAR Bar is also called sealing alloy or constant expansion alloy. The alloy has a linear expansion coefficient similar to that of borosilicate hard glass at 20~450 ℃, a high Curie point and good low temperature structural stability. The oxide film of the alloy is dense and can be well soaked by glass. It does not interact with mercury and is suitable for use in mercury containing discharge instruments. It is the main sealing structural material of electric vacuum devices.

Chemical Composition of KOVAR Bar

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 Bar

  • 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 Bar picture:
Super Alloys K94610 Kovar Bar ASTM F15 Thermal ExpansionSuper Alloys K94610 Kovar Bar ASTM F15 Thermal Expansion

Application of Kovar Alloy Bar

It is used to make Fe-nickel-cobalt alloy strip, bar, plate and pipe with hard glass/ceramic matching sealing. It is mainly used in vacuum electronics, power electronics and other industries.


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Super Alloys Kovar Bar

      

K94610 Alloys Bar

      

ASTM F15 Alloys Bar

      
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