| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum alloy sheet for embossing used for building materials such as a siding material, and an aluminum alloy coated sheet in which cracking is hard to be generated in embossing, and which is firm so as to correspond to the request for thinning. SOLUTION: An aluminum alloy sheet for embossing consists of a soft material having a composition containing 1.3 to 2.3% Mg, and in which the content of Si is controlled to <=0.3%, and Fe to <=0.3%, and the balance Al with inevitable impurities, and in which elongation in a direction perpendicular to the rolling direction is >=27%, and tensile strength is >=140 N/mm2. In addition to the above the aluminum alloy sheet for embossing contains one or more selected from 0.06 to 0.3% Cu, 0.06 to 0.3% Mn and 0.06 to 0.3% Cr. Aluminum alloy coated sheets for embossing is obtained by further applying coating to the surfaces of the above aluminum alloy sheets.
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