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[[Steelmaking]] is another example{{Ndash}} raw materials in the form of [[ore]] are mine

...ve wear. In this case, the slag is termed ''synthetic''. A good example is steelmaking slag: [[quicklime]] and [[magnesite]] are introduced for refractory protect ...l)|liming]] effect, it is valued as [[fertilizer]] in gardens and farms in steelmaking areas. According to the American Association of Plant Food Control Official

...ced]] material. Further refinements in the process, such as [[basic oxygen steelmaking]], further lowered the cost of production while increasing the quality of t {{Main|Steelmaking}}

Before the development of effective methods of [[steelmaking]] and the availability of large quantities of steel, wrought iron was the m ...t important use was as the raw material for the [[cementation]] process of steelmaking.

{{See also|Steelmaking}} ...ied to produce steel. In the late 1850s, [[Henry Bessemer]] invented a new steelmaking process, involving blowing air through molten pig iron, to produce mild ste

...R}}</ref> Around the beginning of the 19th century, manganese was used in steelmaking and several patents were granted. In 1816, it was noted that adding mangane ...r-fixing, [[deoxidized steel|deoxidizing]], and [[alloying]] properties. [[Steelmaking]],<ref>{{cite book|isbn = 9780871708588|pages = 56–57|first = John D.|las