Lead Babbit comprises a family of alloys used to cut down on friction in moving parts of machines. Alloys 7, 8 and 13 are essentially lead-antimony-tin alloys. Alloy 15 is an arsenical (about 1% arsenic) lead-base alloy. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, forming, heat treating, and machining. Filing Code: Pb-10. Producer or source: White metal bearing alloy producers.