ASARCOLO 281-338 is a non-eutectic alloy that can be melted easily. Its range indicates the temperature through which it melts; thus it has a melting range from 281 F to 338 F. It is used widely in foundries for proof casting. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: Sn-6. Producer or source: Federated Metals Corporation, ASARCO Inc..