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ABS Steels are types of structural steel which are standardized by the American Bureau of Shipping for use in shipbuilding. 〔Rules for Building and Classing Steel Vessels, American Bureau of Shipping, 1990〕 ABS steels come many grades in ''ordinary-strength'' and two levels of ''higher-strength'' specifications. All of these steels have been engineered to be optimal long-lived shipbuilding steels. ABS does permit the use of other steels in shipbuilding, but discourages it, and requires more detailed engineering analysis. ==Basic properties== All ABS steels are standard carbon steels. As with other grades of steel, they have a specific gravity of 7.8.- 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「ABS Steels」の詳細全文を読む スポンサード リンク
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