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.

AISI 1139 is a carbon steel containing 1.35-1.65% manganese and 0.13-0.20% sulfur to furnish free-machining characteristics. It is recommended especially for high-production machined products. Among its many applications are splined shafts, screws, arbors, tool holders and propeller shafts.