| 摘要 |
PROBLEM TO BE SOLVED: To provide an aluminum material usable for application requiring high corrosion resistance in spite of being a continuously cast material, and to provide its production method. SOLUTION: A continuously cast aluminum alloy material comprising, by mass, 0.20 to 1.20% Fe, and the balance Al with inevitable impurities is subjected to cold rolling at a draft of 30 to 70%, is further subjected to high temperature precipitation treatment of 1 hours or more at 500 to 640°C, and is subsequently subjected to cold rolling. By the production method, a continuously cast aluminum alloy material in which Fe is precipitated can be obtained, and excellent corrosion resistance as that of the continuously cast material can be obtained. In this way, the stock can be provided inexpensively to various high strength industrial equipment requiring corrosion resistance. COPYRIGHT: (C)2006,JPO&NCIPI
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