| 摘要 |
It is an object to provide an aluminum alloy forged material for an automobile excellent in tensile strength while maintaining excellent corrosion resistance, and a method for manufacturing the same. Provided are the aluminum alloy forged material for an automobile and a method for manufacturing the same, the aluminum alloy forged material being composed of an aluminum alloy including Si: 0.7-1.5 mass%, Fe: 0.1-0.5 mass%, Mg: 0.6-1.2 mass%, Ti: 0.01-0.1 mass% and Mn: 0.3-1.0 mass%, further including at least one element selected from Cr: 0.1-0.4 mass% and Zr: 0.01-0.2 mass%, restricting Cu: 0.1 mass% or less and Zn: 0.05 mass% or less, and a hydrogen amount: 0.25 ml/100 g-Al or less, the remainder being Al and unavoidable impurities, in which the depth of recrystallization from the surface is 5 mm or less. |
