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t91是什么材质钢
更新时间: 2020-12-04 10:39:07  

t91是一种合金钢,其冲击韧性比较高,塑性和热强性能好,抗氧化性和抗高温腐蚀性都比较好,而且温度在低于620摄氏度的情况下,许用应力要比奥体式不锈钢高。t01钢在9Cr1MoV钢的基础上把碳含量降低了,并且添加了钒、铌等元素合金而成。由于t91钢的合金元素含量比较高,所以在焊前需要进行预热,焊后也需要经过热处理,所以T91钢在焊接的时候需要采取可行的焊接工艺才行。

关键词: t91 什么 材质

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