Public domain
Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Converting scrap iron and steel into high quality alloy steel. A workman adds alloying materials to the bath of molten steel in one of the thirty-five ton electric arc furnaces. These furnaces give faster heatin
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Credit lineSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Converting scrap iron and steel into high quality alloy steel. A workman adds alloying materials to the bath of. 1940-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.