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
675Sn Alloy with high Phosphorus and Tin content which is recommended for copper brazing. Tin (Sn) lower the melting point, increase fluidity and enhance good wetting properties. Due to its low melting alloy requires a rapid heating cycle to ensure that the elements do not separate through liquation. Excellent fluidity and low melting arrange. This alloy is also recommended for narrow gap due to its good capillary action. When brazing brass or copper to brass you need a separate flux, Meltolit 770.
This alloy is not recommended to be used for media containing sulphur. Also it is not allowed to use for joining steels (Fe) or materials containing Iron (Fe), Nickel (Ni) or Cobalt (Co) as it will form brittle phase in the joint.