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.WALLEX No. 50 is a hard-surfacing alloy with excellent resistance to a combination of abrasion and corrosion. It has good red hardness and excellent weldability. It is supplied as an atomized powder for application with Wall Colmonoy's SPRAY-WELD* Process.