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Steel manufacture, Allegheny-Ludlum. White-hot steel pours like water from a thirty-five ton electric furnace. The finest quality steels and alloys are produced in these furnaces, which allow much greater control of temperature than other conversion furnaces. The proportion of electric furnace steel
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Credit lineSteel manufacture, Allegheny-Ludlum. White-hot steel pours like water from a thirty-five ton electric furnace. The finest quality steels and alloys are produced in these furnaces, which allow much gre. 1940-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. A heated ingot of steel is removed from the soaking pit. In this pit ingots are thoroughly heated to the extremely high temperature required for conversion into slabs, billets or sheet bars for further conversio
The molten stream pouring from the thirty-five ton electric furnace is slag-waste material melted down during the process of refining. It is composed largely of limestone, which carries with it various other impurities in the metal. In the foreground is a huge ladle into which the molten steel will
Steel manufacture, Allegheny-Ludlum. Ladling it out! These workers are casting ingots from the ladle into which a thirty-five ton electric furnace has just poured its molten steel. The "hot tops" allow for shrinkage of the steel in the ingots bodies. If these should be any slag left in the molten st
Steel manufacture, Allegheny-Ludlum. White-hot steel pours like water from a thirty-five ton electric furnace. The finest quality steels and alloys are produced in these furnaces, which allow much greater control of temperature than other conversion furnaces. The proportion of electric furnace steel
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Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width. It will eventually be used as tank armor