Shanghai Tankii Alloy Material Co.,Ltd

Shanghai Tankii Alloy Material Co.,Ltd

 

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Fe Ni Co Alloy Ni29Co18 / UNS K94610 Kovar Expansion Alloy Strip 400mm Width

Fe Ni Co Alloy Ni29Co18 / UNS K94610 Kovar Expansion Alloy Strip 400mm Width

  • Fe Ni Co Alloy  Ni29Co18 / UNS K94610  Kovar Expansion Alloy Strip 400mm Width
  • Fe Ni Co Alloy  Ni29Co18 / UNS K94610  Kovar Expansion Alloy Strip 400mm Width
  • Fe Ni Co Alloy  Ni29Co18 / UNS K94610  Kovar Expansion Alloy Strip 400mm Width
  • Fe Ni Co Alloy  Ni29Co18 / UNS K94610  Kovar Expansion Alloy Strip 400mm Width
Fe Ni Co Alloy  Ni29Co18 / UNS K94610  Kovar Expansion Alloy Strip 400mm Width
Product Details:
Place of Origin: China
Brand Name: TANKII
Certification: SGS
Model Number: Kovar
Payment & Shipping Terms:
Minimum Order Quantity: 100KG
Price: negotiable
Packaging Details: wooden case
Delivery Time: 7-20 work days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 200Tons per month
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Detailed Product Description
Material: Ni: 29% Co:18% Shape: Wire, Strip, Sheet, Rod
Thickness: 0.05-5mm Width: 400mm
High Light:

fecral wire

,

high temperature wire

Fe ni Co Alloy Ni29Co18/ UNS K94610 (4J29) Kovar Expansion Alloy strip

 

Description

Kovar is a nominal 29%Ni-17%Co-54%Fe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses. Kovar has a nominal expansion coefficient of approximately 5 ppm/°C and inflection temperature of ~450 °C (840 °F).

Kovar (ASTM F15) 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 integrated circuits, it has been used for the flat pack and the dual-in-line package.

 

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. ASTM  
Kovar K94610 1.3981 F15  

 

 

 

Physical Properties

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

 

 

Mechanical Properties

Grade Tensile Strength N/mm²
Soft 1/4 Hard 1/2 Hard 3/4 Hard Full Hard
Kovar Strip <570 520-630 590-700 600-770 >700
Kovar Wire <585 585-725 655-795 725-860 >860

 

 

Coefficient of Expansion

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

 

 

Size Range

Kovar Wire: ¢0.1mm-¢9mm
Kovar Bar: ¢11mm-¢200mm
Kovar Strip: 75-110mm*0.15-22mm.

 

Invar 36, also known as FeNi36, is iron-nickel alloys have low coefficients of expansion over only a rather narrow range of temperature. It has a low coefficient of expansion from cryogenic temperatures to about 260℃. In the dry air at home temperature, invar 36 has good resistance to corrosion. But in moist air, it may go corrosion.

Invar 36 is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200℃, aperture mask, unit frameworks working below -200℃ and so on.

 

Chemical Composition

Grade C% Si% P% S% Mn% Ni% Fe%
Invar 36 Max 0.05 Max 0.30 Max 0.020 Max 0.020 0.20-0.60 35.0-37.0 Bal.

 

Specifications

Grade UNS Werkstoff Nr. Strip/Sheet
Invar 36 K93600 1.3912 ASTM B388/B753

 

 

Physical Properties

Grade Density Melting Point
Invar 36 8.1 g/cm3 1430°C

 

 

Coefficient of Expansion

Alloy

 

Linear Coefficient of Thermal Expansion ā,10-6/℃

20-50℃ 20-100℃ 20-200℃ 20-300℃ 20-400℃ 20-500℃
Invar 36 0.6 0.8 2.0 5.1 8.0 10.0

 

Size Range

Invar 36 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.

 

Contact Details
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Contact Person: Matt

Tel: +8618918855652

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