SeBiLOY II (UNS C89520) is a selenium/bismuth-modified cast red brass alloy. Its low lead content helps meet the National Sanitation Foundation’s standard on low lead pickup in water supply systems. The Se/Bi modification permits machining exactly like the leaded red brasses it is replacing. This datasheet provides information on composition and physical properties. It also includes information on casting, machining, and joining. Filing Code: CU-606. Producer or source: Copper alloy producers.