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f91是什么材质
更新时间: 2020-12-16 15:33:30  

钢。f91钢是是属于91钢的各种用途分支钢种的一个种类,f91是在曾经的9Cr-1Mo型钢种基础上加入了强化元素V,N等,在此之后形成的一类变质钢种,通常把其称之为马氏体耐热钢 ,但是在美国标准中,对Cr量小于一成的,会列入铁素体系列,所以标准中的名称依然是铁素体型。它有超乎寻常的常温性能,它有着650℃以下的优良持久,蠕变性能以及非常低的线膨胀系数。

关键词: f91 什么 材质

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