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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.

Lucas-Milhaupt SIL-FOS® 18 Silver/ Copper/ Phosphorus Alloy
Categories: Metal; Nonferrous Metal; Copper Alloy; Solder/Braze Alloy

Material Notes:

Applications: Sil-Fos 18 is a moderate cost brazing filler metal suitable for joining copper, brass and bronze alloys where low brazing temperature and free flowing characteristics are required. It should be used on assemblies where good fitup can be maintained.

Characteristics: Sil-Fos 18 is a ternary eutectic, low temperature brazing filler metal that is free flowing and self-fluxing on copper and some high copper an copper alloys by virtue of its phosphorus content. Brasses and most bronzes require the use of Handy Flux (or Handy Flux Type A-1 on Aluminum Bronze or Beryllium Copper) for good wetting. This alloy becomes extremely fluid above its melting point. With most joint designs a clearance of .001" to .003" (.025mm.-.075mm) is desirable.

Sil-Fos 18 should not be used on ferrous metals or nickel base alloys, since the phosphorus diffuses and produces brittle iron or nickel phosphides at the joint interface.

Information provided by Lucas-Milhaupt, Inc.

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Physical PropertiesMetricEnglishComments
Density 8.11 g/cc0.293 lb/in³
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000294 ohm-cm0.0000294 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Melting Point 643 °C1190 °F
Solidus 643 °C1190 °FMelting Point
Liquidus 643 °C1190 °FFlow Point
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu >= 75.15 %>= 75.15 %
Other, total <= 0.15 %<= 0.15 %
Phosphorus, P 6.3 - 6.7 %6.3 - 6.7 %
Silver, Ag 17.2 - 18 %17.2 - 18 %
 
Descriptive Properties
ColorGray

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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solder replacement adhesives

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