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Glass Sealing Alloy Foil (Fe54/Ni29/Co17)

Formula: Fe 54/Ni 29/Co 17
Form: Foil/Film/Sheet
Material: Glass Sealing Alloy
Commodity: Alloys
Temper: Annealed
Glass Sealing Alloy Foils (Fe54/Ni29/Co17) are specialty alloy foils used to create a vacuum-tight seal between glass and metal components. With 101 alloy variations available, we offer foils tailored to meet the needs of different sealing applications. For example, our Kovar alloy option is well-suited for sealing borosilicate glass, while our Iron-Nickel-Cobalt alloy works for sealing soda-lime glass. With the right sealing alloy, manufacturers can create glass-to-metal seals for vacuum tubes, cathode ray tubes and other electronic components.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Foil/Film/Sheet
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±25%
Thickness >0.05mm ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 30
Modulus of elasticity( GPa ) 207
Tensile strength( MPa ) 510-520
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 48.9
Temperature coefficient( K⁻¹ ) 0.0037
Magnetic Properties
Element Value
Curie temperature( C ) 435
Thermal Properties
Element Value
Melting point( C ) 1450
Specific heat( J K⁻¹ kg⁻¹ ) 439@23°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 17.3@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.81@20-200°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.36-8.5

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