Strong and ductile joints, especially on copper and stainless steel. High tolerance to vibration and stress , with tensile strengths to 33,000 psi on stainless. 93% Tin - 7% Silver is the best electronics solder available, with high conductivity, ductility and strength.

Benefits and Uses

Low melting temperatures prevent loss of properties and minimize distortion on thin wires and sheets. Tin-silver alloys are used for electronics, fabrication, ducting, food containers, storage bins, instruments, copper plumbing pipe, and cooling coils for refrigerators. In many instances, a stronger overall assembly exists after joining with Kapp tin-silver solder than with higher temperature silver brazing alloys.

The most popular of the low temperature silver bearing solders are 96.5% tin, 3.5% silver and 96% tin, 4% silver. Kapp Alloy also produces tin-silver solders with up to 7% silver for applications requiring a higher temperature range and/or higher silver content for superior electrical conductivity.

The following charts represents our standard tin-silver alloys. Strength values are typical and are to be used as general guidelines when selecting solder for a particular application. Many factors, such as materials, temperature, and method of application determine the end result. Call Kapp Engineering Assistance to discuss your specific needs. We recommend testing appropriate alloys in your specific application to ensure suitability. Samples of Kapp's alloys are always available upon request.

All Kapp aluminum solders are available in bar or wire form.
Custom alloys and forms are our specialty.