Bibframe Work
TitleSteel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Refined alloy steel in the electric furnace, ready for casting into ingots. The slag layer on top of the molten steel prevents the hot steel from oxidizing, thereby preserving its high quality. Steel will be drawn off through the spout at the left into ladles in the pit. This is an operation that has rarely been photographedTypeStill ImageCollectionPlaceUnited States--Pennsylvania--Allegheny County--Brackenridge.Authorized Access PointPalmer, Alfred T. Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Refined alloy steel in the electric furnace, ready for casting into ingots. The slag layer on top of the molten steel prevents the hot steel from oxidizing, thereby preserving its high quality. Steel will be drawn off through the spout at the left into ladles in the pit. This is an operation that has rarely been photographed