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pig iron grade

См. также в других словарях:

  • Nickel pig iron — (NPI) is a low grade ferronickel invented in China as a cheaper alternative to pure nickel for the production of stainless steel. It is composed of low grade nickel ore, coking coal, and a mixture of gravel and sand as an aggregate. This mixture… …   Wikipedia

  • Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the …   Wikipedia

  • Iron plantation — was a small scale iron production facility common in the South prior to the 1900s. It involved a process of smelting that produced an inferior grade of iron called pig iron that did not require a large scale industrial process to produce higher… …   Wikipedia

  • iron processing — Introduction       use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting.       Iron (Fe) is a… …   Universalium

  • Wrought iron — is commercially pure iron. In contrast to steel, it has a very low carbon content. It is a fibrous material due to the slag inclusions (a normal constituent). This is also what gives it a grain resembling wood, which is visible when it is etched… …   Wikipedia

  • Oregrounds iron — Statue of Louis de Geer (1587 1652) in Norrköping, Sweden. De Geer introduced the Walloon method to Sweden. Oregrounds iron was a grade of iron that was regarded as the best grade available in 18th century England. The term was derived from the… …   Wikipedia

  • steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

  • metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium

  • List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …   Wikipedia

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • Steel — For other uses, see Steel (disambiguation). The steel cable of a colliery winding tower …   Wikipedia

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