Lead-Free Solder Properties
2022-07-18
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Lead-Free Solder Properties
International annealed copper standard: % of IACS=0.017241/ρ*100%
Notes:
1. 1MPa=145psi 1psi=6.895kPa 1kPa=0.0102 kgf/cm² 1psi=0.0703 kg f/cm²
2. Electrical conductivity and resistance：Electrical conductivity（%IACS）=0.017241/ρ*100%.
Electrical conductivity and conductance: Electrical conductivity（%IACS）=σ/58.0*100%.
58MS/m=100%IACS; 1%IACS=0.58MS/m; 1MS/m=1.7241%IACS
3. “-” represents no data available
4. 1W/(m·K) =1W/(m·℃)
5. Data with light blue color is only for reference
6 *27 represents the temperature of 20℃. The shear strength is 27MPa if the elongation rate is 0.1mm/min. In most cases, the shear strength decreases with temperature.
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