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Tinned Copper Alloy Coil (CuSn)

Formula: CuSn
Form: Coil
Material: Tinned Copper Alloy
Commodity: Alloys
Hazard Pictogram: GHS08
Tinned Copper Alloy Coils (CuSn) are thin foils of copper alloy metal that have been coated with a layer of tin that protects the reactive copper from oxidation and corrosion. They’re available in 123 variations, with foils ranging in thickness, width, length and alloy composition. These foils are valued for their high thermal and electrical conductivity, ductility and solderability. These properties make them ideal for applications like printed circuit boards, electrical shielding, gaskets, shims, battery terminals and more. With our broad selection of sizes and grades, Tinned Copper Alloy Coils offer versatile solutions for electronics, thermal management and other industrial needs.
Technical Data Sheet Safety Data Sheet Tolerance Properties

Serious health hazard

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Tolerances

Coil
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 50
Modulus of elasticity( GPa ) 117
Hardness - Vickers( kgf mm⁻² ) 40-120
Tensile strength( MPa ) 200-400
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 45293
Temperature coefficient( K⁻¹ ) -
Thermal Properties
Element Value
Melting point( C ) 1083
Thermal conductivity( W m⁻¹ K⁻¹ ) 391.1@°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 16.9@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.92

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