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a420是什么材质
更新时间: 2020-12-01 13:40:56  

是美国牌号,相当于中国的2Cr13材料,是马氏体不锈钢。a420是A420是美国牌号相当于我国的2Cr13材料.是马氏体不锈钢,通常情况下,进行焊接的话,要预热,而A420 WPL6是美国标准中的一种材质,它需要在低温情况下,一般是在低温-45度环境下进行的无缝焊接管件,对应的管材为A333 Gr.6 ,而有的时候会选用16Mn管材来代替,虽然总体上指标符合要求,但是还是有所差距,A420 WPL6圆钢直径20-直径700mm,,圆钢长度6000mm到9000MM。

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