Meltolit 9730 Metal paste
Copper-alloyed soft solder metal paste for copper, copper alloys, steel and stainless steel used mainly in HVAC and refrigerant industry but also for car body work Working temp: 250-350°C
A copper free silver brazing alloy. Used for copper, brass and steel. Because of the lack of copper it is well suited for ammonia bearing environments.
It can be brazed both with flame, induction or protective gas furnace.