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82问答网 > Q235钢与Q345钢焊接为什么用E43型焊条,原理是什么

Q235钢与Q345钢焊接为什么用E43型焊条,原理是什么

2025-03-15 05:29:05

推荐回答（1个）

回答1：

强度匹配原则。E43型焊条是Q235钢配套焊条,E50型焊条是Q345钢配套焊条,对于Q235+Q345接头采用E43型焊条属于等强匹配。一般情况下,强度低的焊条,韧性比较高。考虑到国内焊条的实际强度都偏高,除有其它需要,应尽量采用等强匹配,尽量少用高强匹配。

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