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Steel casting is a specialized form of casting involving various types of steel. Steel castings are used when cast irons cannot deliver enough strength or shock resistance.〔Oberg, p. 1332〕 Examples of items that are steel castings include: hydroelectric turbine wheels, forging presses, gears, railroad truck frames, valve bodies, pump casings, mining machinery, marine equipment, Turbocharger Turbines and engine cylinder blocks.〔 Steel castings are categorized into two general groups: carbon steels and alloy steels.〔 ==Steel casting alloys== Alloy steel castings are broken down into two categories: low-alloy steels and high-alloy steels.〔 Low-alloy steels contain less than 8% alloying content and high-alloy steels have 8% or more.〔 This is a table of some steel casting alloys: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Steel casting」の詳細全文を読む スポンサード リンク
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