View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.RMI 5A1-2.5Sn ELI (ELI = Extra Low Interstitials) is an alpha titanium alloy that was developed for use at cryogenic temperatures. It has a guaranteed minimum yield strength of 100,000 psi at room temperature with good ductility and formability; its yield strength and elongation increase substantially as temperature is lowered. It is used successfully for high-pressure vessels at temperatures below -320 F.