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welding rod question

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    #31
    Tubby is DA MAN!

    Originally posted by Tubby View Post
    If you've never done much welding with the 7018, it's a whole different ball game than the others. You can't rush it, it takes time to burn.

    the 7018 is perfect for structural steel but how old are the rods? Were they kept in an air-tight container? Has any of the flux begun to flake off? Do you have a rod oven? The smallest amount of moisture will wreck a low-hydrogen rod. If you're unsure, try running a bead with some scrap iron and see how it performs. If the rod isn't glowing in the dark and the flux doesn't turn to ash and fall of the rod when you strike an arc, they may be salvageable.

    If they aren't any good anymore, the 6011 will serve your purpose better than the 6013. The 6013 does make a very nice weld but only under perfect conditions. They will trap slag a lot easier than the 6011. And you don't want slag inclusions inside the welds, it weakens the weld.

    If I were in your shoes... Tack up with the 6011 and weld out with some good fresh 7018's. 3/32 on both. Keep your base metal clean and clean after each pass (if making more than one pass).

    Have fun, wear proper safety equipment, hood with a good lens filter, fire extinguisher nearby and good luck!
    I always learn something when he talks welding!

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