合金结构钢具有适当的淬透性。经过适当的金属热处理后,其显微组织为均匀的索氏体、贝氏体或极细的珠光体。因此,它具有较高的抗拉强度和屈服比(通常约为0.85),较高的韧性和疲劳强度,以及较低的韧脆转变温度。可用于制造截面尺寸较大的机械零件。
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