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Steel Industry, Geography of

Today, the geography of the steel industry is marked by remarkable internationalization rather than being bound by nationalist industrialization programs for domestic development. The industry's ascent was concomitant with the Industrial Revolution in the 19th century. As the demand for railroads, machinery, and industrial infrastructure emerged, the growth and location of the industry in Britain, and later the United States as well as other European countries, were dictated by the availability of raw materials. With technological changes and state intervention, the geography of steel production witnessed significant movement away from raw materials and national markets to increasingly global markets and offshore production. With neoliberal policies, the industry is characterized by more international trade, foreign direct investment, mergers and acquisitions, and, unexpectedly, the predominance of entrepreneurs and firms from developing countries. More recently, as a result of rising energy and raw material costs, the geography of the industry is on the threshold of another round of spatial reorganization.

Raw Materials and Geography

At its core, steelmaking is a relatively simple process. Iron ore, sinter, coal, limestone, and small quantities of scrap are fed into a blast furnace to produce pig iron, which in turn is charged into a basic oxygen furnace to produce molten steel. Liquid steel is then combined with other elements and cast into various shapes, sheets, and sizes, depending on the final application. From the 19th century until the 1950s, most steel plants were located near raw material sources. Historically, coal and/or iron ore regions have hosted steel mills—notably the English Midlands, Western Pennsylvania in the United States, the Ruhr in Germany, Lorraine in France, Minas Gerais in Brazil, Northern and Eastern China, Eastern India, and Eastern Australia. In some cases, national security and regional development concerns have influenced the location of mills away from vulnerable border areas.

However, with technological change, diversified markets, and declining transportation costs, steel mills are no longer tied to the sources of raw materials. With revolutionary changes in transportation and material-handling technologies, a new kind of coast-based steel mill emerged, allowing the efficient sourcing of high-quality coal and ores by massive ocean-faring vessels from far-flung mines in South Africa, Brazil, Australia, India, and so on. In addition to importing raw materials, port-based mills also facilitated competitive exports of steel products, resulting in gains from economies of scale. East Asian countries, owing to the lack of raw materials, adopted such an investment strategy, which was later followed by other late-industrializing countries. Most Japanese mills, the Pohang Iron and Steel Company (POSCO) in South Korea, China Steel in Taiwan, Companhia Siderúrgica de Tubarão (CST) in Brazil, and Rashtriya Ispat Nigam, Ltd. (RINL) in India are all deepwater-based mills. Integral to the industrialization strategy, these states targeted the steel industry through state ownership (Steel Authority of India, Ltd. [SAIL] in India, SIDERBRAS in Brazil, and POSCO in Korea), investment, and pricing policies for domestic development and exports.

Technology and Geography

The entry barriers to integrated steel production based on coal and iron were high. The main bottleneck was investment, running into roughly US$10 billion for a 10-million-ton annual capacity state-of-the-art plant. Only enterprises with deep pockets or access to public resources, such as state-owned steel companies, could venture into such large-scale operations. This led to the development of minimill technology, which had a smaller scale of operations and eliminated the expensive coke ovens and blast furnaces used in integrated production. Minimills use steel scrap as raw material, which is converted to purified molten steel using electric arc furnaces (EAFs). Earlier, small quantities of high-value specialty steel products were produced with arc furnaces. The refinement of minimill technology through the use of high-quality (recycled) steel scrap in high-income countries such as the United States, the lower investment barriers due to the small scale of operations, and the advances in casting technologies for minimills to produce high-quality steel sheets for the automotive industry changed the geography of the steel industry, especially in the United States.

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