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Au80 / Sn20 Properties

Au80/Sn20 Properties

A Common Industrial Solder

Au80Sn20 is a common solder used in microelectronic and optoelectronic devices and we regularly use it to support our customers’ preform requirements.  To help you determine whether it is a good fit for your application, we’ve highlighted common physical properties for Au80Sn20.  If you require additional performance information, please let us know.

tertiary_phystical propterties_80au_20sn solder preform 13 - White

Below are some of its physical properties:

Property At 300°K Units
Density 14.52 G/ cm3
Specific Heat 0.036 Cal/ g-k
Thermal Conductivity 0.14 Cal/ cm-sk
Thermal Expansion 16.5 x 10-6 1 /k
Resistivity 17.35 x 10-6 Ohm-cm
Young’s Modulus 68 GPa
Poission’s Ratio 0.405  
Yield Strength 40,000 psi
ULT Tensile Strength 40,000 psi
Elongation <2 %
Hardness 115 Brinell