NOVELTY - An aluminum-based electroconductive material (10) is obtained by subjecting aged aluminum-scandium-based alloy to processing treatment such that to impart equivalent strain of 4 or more to alloy, and removing remaining strain from resultant product. The aluminum-based electroconductive material comprises metallic structure comprising crystal grains (11) of aluminum or aluminum-based alloy having average grain diameter of 2 mu m or less and aluminum-scandium-based nano-precipitates (13) existing on grain boundaries (12) of the crystal grains in an amount of 0.1-1 %mass.    USE - Aluminum-based electroconductive material is used for cable for robots, quick-charge stand machine, cabtire cable, bus-bar cable, wiring in apparatus, automobile, aircraft, rockets, satellites (all claimed), solar cell power generation module and electric welder.    ADVANTAGE - The aluminum-based electroconductive material has excellent tensile strength and bending resistance, and enables manufacture of lightweight cable having improved drive property, operativity and workability. The cable provides reliable and lightweight apparatus.    DETAILED DESCRIPTION - An aluminum-based electroconductive material is obtained by subjecting an aged aluminum-scandium-based alloy to a processing treatment such that to impart an equivalent strain of 4 or more to the alloy and removing the remaining strain from the resultant product. The aluminum-based electroconductive material comprises a metallic structure comprising crystal grains of aluminum or aluminum-based alloy having average grain diameter of 2 mu m or less and aluminum-scandium-based nano-precipitates having an average grain diameter of 1-60 nm and existing on grain boundaries of the crystal grains in an amount of 0.1-1 %mass, and has a Vickers hardness of 50-70. When the aluminum-based electroconductive material is bent repeatedly for 106 times in a fatigue test in which repeated bending is loaded to the aluminum-based electroconductive material, the fatigue strength of aluminum electroconductive material is 180 MPa or more. An INDEPENDENT CLAIM is included for cable.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of aluminum-based electroconductive material.    Aluminum-based electroconductive material (10)    Crystal grains (11)    Grain boundaries (12)    Aluminum-scandium-based nano-precipitates (13)