Patent ID: 7767042

Claim:
An aluminum alloy extruded product for heat exchangers comprising an aluminum alloy consisting essentially of 0.2 to 1.8% Mn and 0.4 to 1.2% Si, with a total content of Mn and Si of at least 1.2% and ratio of Mn content to Si content of from 0.7 to 2.5, and Cu, as an impurity, of no more than 0.05%, optionally, up to 0.4% of Mg, up to 1.2% of Fe and 0.06 to 0.30% of Ti, with the balance being Al and other impurities, the element content being expressed in mass %, the aluminum alloy extruded product having an electric conductivity of at least 50% IACS and an average particle size of intermediate compounds precipitating in a matrix of no more than 1 μm, and a tensile strength of at least 110 MPa after being subjected to heating at a temperature of 600° C. for three minutes and cooling at an average cooling rate of 150° C./min.