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Welding Electrodes: Which One To Use in a Given Situation

Welding Electrodes

How do we know which welding electrodes are good for a given situation? Well, first we need to understand some of the properties of these electrodes and what the designation represent.

In looking at a E6010 electrode, the letter “E” represents “electrode” or you could think of it as referring to an electric arc process. The next two digits, in this case “60”, represent the tensile strength deposited per square inch. For example, “60” means 60,000 psi tensile strength is what you could expect to deposit after the weld is completed, not before. The next digit, “1”, represents the position that this electrode can be used. In this case, the “1” represents all positions. The last digit represents the chemical composition of the flux. In this case high cellulose and sodium are the major ingredients.

This is just one example of how welding electrodes in the SMAW process are identified. So what can you find about the E7018 electrode? Can this electrode be used in all positions? What about E7024? I will leave these questions open for discussion. Any questions you might have about any electrode you come across, just ask and I will answer to the best of my abilities.

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lenny
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lenny

jim, im gonna try and answer from my memory, and haven’t stick welded since school back in 2007, so be easy on me. lol. 7018 = (70) 70,000psi tensile strength, (1) all positions, (8) electrode positive, or reverse polarity. 7024 = (70) 70,000psi tensile strength, (2) all positions except overhead (4) electrode negative, or straight polarity. and if i remember correctly, all electrodes ending in 0,1,5,6,8 are electrode positive, reverse polarity, and electrodes ending in 2,3,4 are electrode negative, straight polarity, and i think electrode ending in 7 is either positive or negative, or was it an AC rod ?… Read more »

james
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james

Very good Lenny. However, you will notice that you can weld in any polarity or AC with any electrode. Sometimes the electrode packages tell you this on the container. But,,,, we all know that certain electrodes weld better or deposit better in a specific polarity vs another. Why is that? Well for example, in direct current, electrons naturally want to travel from negative to positive and this polarity is called “straight” when are electrode is on the negative side. This polarity gives us more of the electron collision occurring on the work which results in more heat at the work… Read more »

lenny
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lenny

thanks so much for the info jim, i learned something new…. maybe i wasnt paying full attention to the stick welding process when i was in school, (i just wanted to tig). LOL
your knowledge always amazes me…
talk to you later.
lenny

Zoeller
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Zoeller

Enough said.

Zoeller
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Zoeller

The Inferno

Zoeller
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Zoeller

Pick your poison…

james Zidek
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james Zidek

After you know how the electrodes names are broken down it makes it easier to figure out which is used when.

joe Zidek
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joe Zidek

Every electrode burns differently whether it be temperature wise or something else. The whole purpose in having the different types of the electrodes is to use on different types, and thicknesses of metal.

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