BISBO is a pearlitic malleable iron readily cast in thick sections with consistently high mechanical properties. It has high yield strength, excellent wear resistance, and adaptability to selective hardening. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on heat treating, machining, and joining. Filing Code: CI-17. Producer or source: Central Foundry Division, General Motors Corporation.