Soft Solder Alloy
Soft solder alloy is a metal mixture with a liquidus temperature of maximum 450 degrees Celsius, suitable for tight and electrically conductive joints under low mechanical stress.
Physical-chemical mechanism of action
Soft solder alloy is a metal mixture with a low liquidus temperature that is not reached in normal welding processes. It mainly contains zinc and lead, with zinc reducing hardness and increasing density.
Metallurgical relevance & risks in welding
Soft solder alloy is suitable for special applications such as electroplates or battery containers. In normal welding processes, it can cause deformation or phase transformations if the temperature gets too high. This can lead to cracks and reduced mechanical properties of the joint.
Workshop practice & instructions
Use soft solder alloy only in special applications where its electrical conductivity and density are essential. In normal welding processes, it is important to control the temperature to avoid deformation or phase transformations. The liquidus temperature of soft solder alloy is a maximum of 450 degrees Celsius.