| abstract |
This aluminum alloy foil has a composition that contains 0.5% by mass or less of Si, from 0.2% by mass to 2.0% by mass of Fe and from 0.1% by mass to 1.5% by mass of Mg, with the balance being made up of Al and unavoidable impurities, while optionally controlling Mn in the unavoidable impurities to 0.1% by mass or less. It is suitable for this aluminum alloy foil to have a tensile strength of from 110 MPa to 180 MPa, an elongation of 10% or more and an average crystal grain size of 25 μm or less. |