Cadmium-free hard solders having working temperatures of less than 630.degree. C., which are easily workable and yield ductile soldered joints, are composed of 30 to 60% by weight of silver, 10 to 36% by weight of copper, 15 to 32% by weight of zinc, 0.5 to 7% by weight of gallium, 0.5 to 7% by weight of tin and 0 to 5% by weight of indium.

Кадми-svobodno трудные припои имея работая температуры чем 630.degree. C, которые легко workable и производят дуктильные припаянные соединения, составлено 30 к 60% by weight of серебр, от 10 до 36% by weight of медь, от 15 до 32% by weight of цинк, от 0.5 до 7% by weight of галлий, от 0.5 до 7% by weight of олово и от 0 до 5% by weight of индий.