ALUMINUM-ALLOY CLAD MEMBER, METHOD FOR PRODUCING SAME, AND HEAT EXCHANGER USING ALUMINUM-ALLOY CLAD MEMBER

摘要

[Problem] A highly corrosion resistant and highly formable aluminum alloy clad material and a heat exchanger using the same are provided. [Means for Resolution] An aluminum alloy clad material having a core material and a sacrificial anode material clad on at least one surface of the core material: wherein the core material comprises an aluminum alloy comprising 0.050 to 1.5 mass% (referred to as "%" below) Si, 0.050 to 2.0% Fe and 0.50 to 2.00% Mn; the sacrificial anode material includes an aluminum alloy containing 0.50 to 8.00% Zn, 0.05 to 1.50% Si and 0.050 to 2.00% Fe; the grain size of the sacrificial anode material is 60 µm or more; and a ratio R1/R2 is 0.30 or less, wherein R1 (µm) is a grain size in a thickness direction and R2 (µm) is a grain size in a rolling direction in a cross section of the core material along the rolling direction : a production method thereof: and a heat exchanger using the clad.