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solder replacement adhesives

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 PropertiesMetricEnglishComments
Density 10.2 g/cc0.368 lb/in³
Viscosity 62900 cP
@Temperature 280 °C
62900 cP
@Temperature 536 °F
Surface Tension 467 dynes/cm
@Temperature 280 °C
467 dynes/cm
@Temperature 536 °F
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 11.311.3
Tensile Strength, Ultimate 40.0 MPa5800 psi
Elongation at Break 16 %16 %in 50 mm
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000198 ohm-cm0.0000198 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear 26.5 µm/m-°C
@Temperature 15.0 - 110 °C
14.7 µin/in-°F
@Temperature 59.0 - 230 °F
Thermal Conductivity 37.0 W/m-K257 BTU-in/hr-ft²-°F
Melting Point 183 - 277 °C361 - 531 °F
Solidus 183 °C361 °F
Liquidus 277 °C531 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al <= 0.005 %<= 0.005 %
Antimony, Sb 0.20 - 0.50 %0.20 - 0.50 %
Arsenic, As <= 0.02 %<= 0.02 %
Bismuth, Bi <= 0.25 %<= 0.25 %
Copper, Cu <= 0.08 %<= 0.08 %
Iron, Fe <= 0.02 %<= 0.02 %
Lead, Pb 80 %80 %
Tin, Sn 20 %20 %target
Zinc, Zn <= 0.005 %<= 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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