I would warn about cheap Aliexpress & Ebay solder:
60/40 solder is not 60% tin and 40% lead, actualy it is 60% lead and 40% tin.
Correct designation should be 40/60.
The 40/60 solder is a general purpose solder used for non electrical applications. It is used for applications in the sheet metal, stained glass, galvanized gutters, and radiator repair industries.
Melting point (Liquidus): 460ºF (238ºC)
60/40 solder is not 60% tin and 40% lead, actualy it is 60% lead and 40% tin.
Correct designation should be 40/60.
The 40/60 solder is a general purpose solder used for non electrical applications. It is used for applications in the sheet metal, stained glass, galvanized gutters, and radiator repair industries.
Melting point (Liquidus): 460ºF (238ºC)