MATERIAL - 7079-T6 ALUMINUM ALLOY EXTRUSIONS ROOM AND ELEVATED TEMPERATURE PROPERTIES - DETERMINATION OF
GENERAL DYNAMICS/FORT WORTH TEX
Pagination or Media Count:
Temperature and thermal exposure data on the mechanical properties of 7079-T6 Al extrusions were obtained. Tensile test results conformed to the specification FMS 0079 for longitudinal and transverse directions of room tested extrusions. Thermal stability studies based on room temperature tensile properties of the extrusions showed that the longitudinal and long transverse properties were not effected by 100 hrs exposure at 250 F. After exposure at 350 F, the room temperature tensile strength was decreased by 25 and elongation increased 40. Tensile and compression properties at 250 F were 20 below the room temperature properties at 350 F these properties were 65 below the room temperature properties. Bearing properties at 250 F were 10 below room temperature bearing properties at 350 they were 57 below room temperature properties. Shear ultimate strength at 250 F was 10 lower than at room temperature at 250 F it was 55 lower.