Patent ID: 6471794
Filing Date: 2002-10-29
Classification: C22C,C22F

Abstract:
An aluminum alloy fin material for brazing which is composed of an aluminum alloy comprising more than 0.1 wt % but 3 wt % or less of Ni, more than 1.5 wt % but 2.2 wt % or less of Fe, and 1.2 wt % or less of Si, and at least one selected from the group consisting of 4 wt % or less of Zn, 0.3 wt % or less of In, and 0.3 wt % or less of Sn, and further comprising, optionally, at least one selected from the group consisting of 3.0 wt % or less of Co, 0.3 wt % or less of Cr, 0.3 wt % or less of Zr, 0.3 wt % or less of Ti, 1 wt % or less of Cu, 0.3 wt % or less of Mn, and 1 wt % or less of Mg, and any unavoidable impurities with the balance being aluminum, wherein a ratio of a length in right angle direction to the rolling direction of an individual grain viewed from the sheet surface to a length of the grain in the parallel direction to the rolling direction (the grain length in the right angle direction/the grain length in the parallel direction) is 1/30 or less, an electric conductivity is 50%IACS or more but 55%IACS or less, and a tensile strength is 170 MPa or more but 280 MPa or less.