What welding Q235 and 16 steel, please enlighten Masters
If you do not answer the question, the general carbon steel electrode will do, such as J422, J506, and so on, and so on, what you have on hand;If you need a large amount of business, choose a cheaper one;If you answer the questions on the book, use E40, typically J422.
It belongs to the welding of low carbon steel and low alloy steel. Using alkaline welding rod, it is enough to choose E43 series
In the past, high strength welding was used to reduce the strength of the lower material. Therefore, E43 series welding rod should be adopted and E50 series should not be used
