| abstract |
There is provided an aluminum alloy blank for a lithographic printing plate comprising iron in a range of 0.20 to 0.80 wt %; and the balance being aluminum, a crystal grain refining element, and unavoidable impurity elements. In the aluminum alloy blank, a content of silicon is in a range of 0.02 to 0.30 wt % and a content of copper is equal to or below 0.05 wt % among the impurity elements, and a solid solution amount of silicon is in a range of 150 ppm to 1500 ppm inclusive. |