Abstract: An ingot includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot, the at least two metals are 40-95 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %; or (b) the ingot is a cast ingot, the at least two metals are 40-80 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %, provided that when copper is present in the cast ingot in an amount greater than 69 wt. %, zinc is present in an amount less than 30 wt. %. Methods for preparing and casting the ingot are also disclosed, as is a system for casting a copper-bismuth alloy.

Abstract: An ingot includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot, the at least two metals are 40-95 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %; or (b) the ingot is a cast ingot, the at least two metals are 40-80 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %, provided that when copper is present in the cast ingot in an amount greater than 69 wt. %, zinc is present in an amount less than 30 wt. %. Methods for preparing and casting the ingot are also disclosed, as is a system for casting a copper-bismuth alloy.