Heslin Rothenberg Farley & Mesiti, P.C.
Aluminum alloy sheet and method for manufacturing the same
An aluminum alloy sheet having excellent press formability and stress corrosion cracking resistance, comprises 3.3 to 3.6 percent by weight of Mg and 0.1 to 0.2 percent by weight of Mn, furthermore, 0.05 to 0.3 percent by weight of Fe and 0.05 to 0.15 percent by weight of Si, and the remainder comprises Al and incidental impurities, wherein the sizes of intermetallic compounds is 5 μm or less, the recrystallized grain size is 15 μm or less in the region at a depth of 10 to 30 μm below the sheet surface, and the surface roughness is Ra 0.2 to 0.7 μm.
Honda Motor Co., Ltd. Nippon Light Metal Co., Ltd Novelis Inc.
C C B B C
C22C C22F B22D B22D C22C
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Kunihiro Hitoshi Toshiya Ichiro Pizhi Simon Kevin Noboru Mark
Yasunaga Kazama Anami Okamoto Zhao Barker Gatenby Hayashi Gallerneault