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Low-alloy special purpose steel : ウィキペディア英語版 | Low-alloy special purpose steel Low-alloy special purpose steel is a grade of tool steel characterized by its proportion of iron to other elements, the kind of elements in its composition, and its treatment during the manufacturing process. The three ASTM established grades of low-alloy special purpose steel are L2, L3, and L6. This grade originally contained L1, L4, L5 and L7 as well as three F grades (F1, F2, and F3) but because of falling demand only grades L2 and L6 remain in production. ==L2== L2 grade steel comes in medium-carbon (0.45%-0.65%) and high-carbon (0.65%-1.1%) formats.〔
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「Low-alloy special purpose steel」の詳細全文を読む
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