MECHANICAL-PROPERTY DATA HP 9NI-4CO-25C STEEL. TEMPERED FORGING Open PDF Document Details Document Type Technical Report Publication Date Jun 01, 1967 Accession Number AD0820292 Entities Organizations Battelle Memorial Institute Tags DTIC Thesaurus Topics Air Force Air Force Facilities Cold Working Engineering Governments Materials Materials Engineering Materials Laboratories Mechanical Properties Mechanical Working Stress Concentration Stress Corrosion Stresses Tensile Properties Transverse United States Government Yield Strength