AIM Electropure™ 63/37 bar solder.
Sn63/Pb37 is a eutectic alloy with a melting point of 183°C (361°F). Typical applications are wave soldering and plating where Sn63/Pb37 is primarily used as a coating for corrosion protection, and as a base for soldering. 15" long x 0.63" wide x 0.37" high.