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a350是什么材质
更新时间: 2020-12-16 14:53:25  

a350指的是低温锻钢件的一种。它指的是一种美国标准。它的全称为ASTM A350/A350M-2007。在焊接时,a350的化学成分对于结晶裂纹的出现有着非常大的影响,所以为了防止结晶裂纹的产生,对Mn和S这两种化学元素的把控有一定要求。在这种标准下有以下几种钢号牌:LF1、LF2、LF3等。而其中A35 Lf2具备非常适宜的机械性能,所以在低温环境管道连接中的阀门、法兰和管件,都会采用这种材料的锻件。

关键词: a350 什么 材质

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