Corrosion resistant aluminium alloy, manufacturing method for tube or pipe using the aluminium allo

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The present invention relates to an aluminum alloy for a heat exchanger tube or a pipe with improved corrosion resistance, and a manufacturing method thereof. The aluminum alloy is based on aluminum, comprising : 0.50 wt% or less of Cu; and 0.005-1.0 wt% of element X [at least one rare earth metals which belongs to atomic number 57 (La) to atomic number 71 (Lu), Sc, Nb, and Hf] and includes [0.01-2.0 wt% of Mn, (Si+Mg) = 0.03 wt%, (Mn+Mg+Zn) = 98.97 wt%] or [0.25-1.4 wt% of Si, 0.4-1.3 wt% of Mg, Mn <= 1.0 wt%, and Zn <= 0.25 wt%]. In addition, the aluminum alloy may further comprise at least one element selected from Fe, Ti, Zr, Cr, V, Ni, Co, In, B, Pb, Bi, Ca, Be, Ag, Pd, Sb, and Y; and other inevitable impurities. In a case of manufacturing the tube or the pipe for a heat exchanger using the aluminium alloy, corrosion resistance and strength may be improved.