Evolution, adaptation and survival: the very slow death of the American charcoal iron industry

The last charcoal iron blast furnace in the United States shut down in 1945. The most obvious reason for the extraordinary longevity of this industry was the almost unlimited supply of virgin timber in the United States. Although an obvious explanation, it is deceptive. The much more crucial reason for the longevity of the American charcoal iron industry was the technical difficulties involved in adapting coke- and coal-smelted iron to existing industrial processes. Until these technological problems could be overcome, charcoal iron was able to preserve a place for itself in the industrial environment of the late 19th and early 20th centuries. By concentrating their attention on the rapid advance of coke-smelted iron from 1870 onward, historians of the American iron industry have neglected this ability of the older iron technology to adapt to the new industrial conditions.