Solder and Solder Accessories Hercules offers premium Solder and Solder Accessories. A solder is a low-melting alloy, especially one based on lead and tin or (for higher temperatures) on brass or silver, used for joining less fusible metals. SKU 5050MB Product Details | Specifications | Check Inventory Please select BAR SOLDER 3 BARS PER# (50#BX)15% SILVER SOLDER 1 LB/TUBE5% SILVER SOLDER 1 LB/TUBEBAR SOLDER 3 BARS PER# (50#BX)ALCORALUXCOR Log in to view price