FATIGUE OF IRON BASE ALLOYS HY-80 STEEL CAST TEES BUTT WELDED TO ROLLED SECTION SINGLE AND DOUBLE WELD JOINT DESIGN Open PDF Document Details Document Type Technical Report Publication Date Dec 14, 1964 Accession Number AD0461360 Tags DTIC Thesaurus Topics Alloys Chemical Analysis Deflection Fabrication Fatigue Life Fatigue Tests (Mechanics) Ferrium Government Procurement Governments Materials Mechanical Properties New York Steel Tensile Strain Tensile Strength United States Yield Strength