| abstract |
An aluminum alloy material having excellent high-temperature strength over time, used as a core material of an aluminum alloy brazing sheet. An aluminum alloy material of the present invention, an aluminum alloy material used as the core C 2 of the aluminum alloy brazing sheet B31 with a brazing material F on at least one surface of the core C 2 (or B32), Cu: More than 2.5 mass% and 3.5 mass% or less , Si: 0.05-1.0 mass% is contained, The remainder consists of aluminum and an unavoidable impurity, It is characterized by the above-mentioned. [Selection] Figure 1 |