Tin-Bismuth alloy ingot is a lead-free, low-melting-point metal alloy composed primarily of tin (Sn) and bismuth (Bi), often in ratios such as 58Bi/42Sn or 60Sn/40Bi.
Lead-antimony alloy ingot is a cast metal product composed primarily of lead (Pb) and antimony (Sb), typically containing 1% to 12% Sb depending on application needs.