Magnesium and its alloys are used in a wide range of products: housings of mobile telephones and automotive parts show the two main advantages of this material as examples: low density combined with high strength. While casting material has been in place for a long time, rolled magnesium based plates are emerging in mass markets during the last years. They enable use beyond commonly known products.

To further increase the application of magnesium alloys in important market sections, it is necessary to develop a joining technique, which is suitable for mass markets regarding technical and economical questions. Beyond this, mixed-material-joints with other magnesium- or aluminium-based-alloys should be possible applying this joining process. Soldering technology is predestined for this application: It allows high-strength-joints with low thermal loads compared to all welding techniques. Alloys based on tin, zinc or magnesium are suitable as filler metals for this kind of process. The article gives an overview over possible magnesium-based filler metals. Starting from binary Eutectics ternary alloys were produced and thermally analysed. This was followed by wetting and joining tests. Investigations on mechanical strength and corrosion give an idea of the possibilities and restrictions of the developed soldering filler metals.