Patent ID: 8679640

Claim:
An Al alloy member for an electronic device manufacturing apparatus consisting of, in mass %, a Mg concentration of more than 0.01% and 5.0% or less, a Ce concentration of more than 0.5% and 2% or less, a Zr concentration of more than 0.01% and 0.15% or less, Al and unavoidable impurities, wherein elements of the unavoidable impurities are respectively 0.01% or less, a Vickers hardness of the Al alloy member is greater than 30, and wherein at least a portion of a surface of the Al alloy member is coated with an anodic oxide film by a non-aqueous solution, and wherein the anodic oxide film has a decreased weight due to corrosion in a chlorine environment of 0.07% of less.