White metal

A white metal alloy may include antimony, tin, lead, cadmium, bismuth, and zinc (some of which are quite toxic).

Alloys consist of small particles of a hard compound embedded in the tough, ductile background of a solid solution.

White metals are commonly used in bearings and bushings because of their high load-bearing capacity and self-lubricating properties, which reduce friction and extend the lifespan of these components.

[3][4] In the automotive industry, they are found in engine components like piston rings and connecting rods.

[6] In the printing industry, white metal alloys were historically used to cast typefaces.