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solder replacement adhesives

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20/80 (80Pb-20Sn) Solder- ASTM B 32 Grade Sn20A and Grade 20B, UNS L54711
Categories: Metal; Nonferrous Metal; Lead Alloy; Solder/Braze Alloy

Key Words: Tin Alloys; Lead Alloys; Solder Alloy 20B; FED QQ-S-571 (Pb80)
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Physical PropertiesOriginal ValueComments
Density 10.2 g/cc
Viscosity 62900 cP
@Temperature 280 °C
Surface Tension 467 dynes/cm
@Temperature 280 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 11.3
Tensile Strength, Ultimate 40.0 MPa
Elongation at Break 16 %in 50 mm
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000198 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 26.5 µm/m-°C
@Temperature 15.0 - 110 °C
Thermal Conductivity 37.0 W/m-K
Melting Point 183 - 277 °C
Solidus 183 °C
Liquidus 277 °C
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al <= 0.005 %
Antimony, Sb 0.20 - 0.50 %
Arsenic, As <= 0.02 %
Bismuth, Bi <= 0.25 %
Copper, Cu <= 0.08 %
Iron, Fe <= 0.02 %
Lead, Pb 80 %
Tin, Sn 20 %target
Zinc, Zn <= 0.005 %

References for this datasheet.

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MLSS20 / 12259

Solder Replacement
RoHS Compliant Adhesives for Solder Replacement
Master Bond offers RoHS compliant, electrically conductive systems to replace lead soldering. These epoxy and silicone adhesives offer low volume resistivity, low outgassing and high temperature resistance.

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