What lead-free solder alloys and fluxes can be used for hand soldering?
Popular lead-free wire solders in use today are Tin-Silver-Copper (melting point 217-221C), Tin-Silver( melting point 221C), and Tin-Copper( melting point 227 C). All three alloys are available with no-clean, water washable or rosin systems and can be drawn down to the finest wire diameters. These alloys have been used for hand assembly on lead-free products and are compatible with lead-free alloys.