Though its use has increased fourfold in the last decade, aluminum is still far from its peak of usefulness. To push it toward the peak, Aluminum Co. of America, which produces nearly half of all U.S. aluminum, last week offered U.S. industry a shining example of how to use it as an all-purpose metal.
The example, which Alcoa hailed as "the greatest single application ever achieved in the building trades," was its giant new $30 million rolling mill at Davenport, Iowa. Built in 18 months and nearly ready to start production (of extra-wide sheeting), the mill squats over 47...
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