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.LESCALLOY D6AC VAC ARC is a high-hardenability low-alloy steel for high-strength structural applications requiring tensile strengths up to 280,000 psi. It provides a high ratio of yield strength to tensile strength, good ductility and excellent notch toughness with a tough, fibrous fracture as low as 210 F in impact tests. It is produced by the vacuum consumable electrode melting process to provide optimum cleanliness and preferred ingot structure. Its uses include fasteners, shafting and aircraft components.