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February 1965

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Aluminized plastic wrapped between layers of Alcoa aluminum tube aids operation of the world’s largest cryogenic heat exchangers. Designed and fabricated by Air Products and Chemicals, Inc., 30 such units now are helping to produce helium at three new plants in the mid-West. Aluminum is employed in the "kingsized" heat exchangers because of its light weight, and ability to retain strength and resist becoming brittle at minus 320°F and lower. Selected over traditionally used copper and stainless steel, aluminum reduced this giant’s weight by one hundred tons.

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