ASARCOLO 158 and 255 are eutectic alloys that are easily melted. Each number indicates a eutectic with a single melting point; thus ASARCOLO 158 has a melting point of 158 F and ASARCOLO 255 melts at 255 F. These alloys have a wide range of uses in aiding foundry and machine-shop practice, for bending thin sections, anchoring components, spotting fixtures, transferring heat, soldering and sealing. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating, machining, and joining. Filing Code: Bi-1. Producer or source: Federated Metals Corporation, ASARCO Inc..