- Joined Apr 29, 2020
Recently I bought this lead free solder (Sn99.3%, Cu0.7%), D0.6mm.
I have seen many suggest at least 350°C for soldering iron.
But I tried at around 225°C (between 200°C - 250°C), the solder still melt well.
(All shinny surface) (Some dull some shinny)
Funny thing is, the lead free solder surface should be dull as everyone is saying. For my trial, it gets shinny surface and of course dull surface also. And the solder flow I feel quite ok actually.
Should I depend on lead free solder diameter size to determine temperature of soldering iron?
Or should I follow 350°C as the solder surface sometimes shinny and sometimes dull?