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Show XEW SUBSTITUTE FOR STEEL. With practically an unlimited field in which to use it, an English firm has begun the manufacture of duralumin, dura-lumin, a new alloy of aluminium, which may in time become a substitute substi-tute for steel in work where lightness, strength and flexibility are required. H. B. Weeeks, head chemist at Tickers' Tick-ers' Sons & Maxim's works at Barroy, England, is the discoverer of duralumin. duralu-min. It is a little heavier than pure aluminium, but as as strong as steel and about one-third the weight of brass. It can be rolled, drawn, stamped, extended or forged. It does not corrode as easily as other aluminium alumi-nium alloys. The one big drawback to the extensive exten-sive use af aluminium, aside from its expensiveness, is the fact that while its tensile strength equals that of steel, it is far less flexible. The new alloy overcomes that defect, according accord-ing to the inventor. The firm has such faith in duralumin and of tne future demand for it that it is building build-ing new works at Birmingham to manufacture it, and has patented it In all countries of the world. |