Welding Current Settings: Guidelines for Proper Amperage and Electrode Size Selection

What current?

https://www.elektroda.pl/rtvforum/topic860743.html
http://www.spawalnictwo.com.pl/index.php?go=leksykon&id_leksykon=1

So in my case the current I need to set is 130 A?

Dam_MS wrote:

Hello, I am a beginner in electrode welding. I have a question, what current should be set using the electrode Fi 3.25 by 4 mm ?
I heard that the amount of current we operate depends on the diameter of the electrode - is the thesis with the multiplication of the diameter by 30 authentic? If not, how to convert it.

Yes it's true. 30-40A per mm electrode So for 3 it will be between 90-120 and for 4 it will be between 120-160A. For elements made of thicker steel, we use the upper range.

The manufacturers of electrodes provide their own parameters that are similar to each other, the welding current for a dedicated electrode is specified on its box or you can check the symbol on the electrode cover, i.e. welding current, purpose. It also matters whether the electrode is medium or thickly coated.
You have to choose the welding parameters yourself, e.g. the amperage (welding current), you should feel it yourself, when the electrode starts sticking to you, you increase the current, because melting is important, overheating around the weld must be visible, but there must be no undercutting of the material, and for heavier things, you have to set a lower welding current so as not to burn the material and it is rather melting, or use smaller electrodes and take breaks.

Sample dependency table:

If you weld a little longer, you will get to the practice yourself. You won't need any tables. And at the beginning, the welder should have a smooth current control. Then it is easier to choose the welding current and try not to flash in your eyes.

Thanks, I'm almost perfect :)

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