It should be used with clean new sheets of metal but provided that you can tick that box this is a great easy to use welding rod which is definitely worth trying out.
E7018 welding rod uses.
But if you have a dc welder give the lincoln excalibur 7018 welding rods a go.
You can use 7018 ac rods specifically engineered to weld using ac.
What welding rod do i use.
In general 6010 6011 welding rods.
The e7018 is a versatile welding rod frequently used for low and medium carbon steel welding.
The e7018 welding electrode is designed to be used with dc current and can be used in any position.
7018 rods are stronger than 6013 s 7018 s have less spatter than 6013 rods even if all you have is an ac buzz box you dont have to use 6013 rods.
The flux contains almost no hydrogen and the rod produces smooth strong welds that are very ductile.
This electrode produces a low hydrogen arc that creates a more uniform weld.
They have one that s red to i call them rust rods because they bur.
This rod runs completely different from the 6010 and 6011 rods it is much smoother and easier.
It s stronger and smoother than the rest making it brilliant for high.
I m going go to give my answer and then i copied and pasted an excellent in depth answer if you want to know more.
This is important especially if the metal will be used in an environment where the temperatures are below zero.
The 7018 is the backbone of structural welding.
It is a mild steel rod that is coated with a low hydrogen iron based flux compound that vaporizes to shield the molten weld bead from contamination by air and moisture.
A 10 pound box of these welding electrodes start.
This rod has a tensile strength of 70 000 lbs.
6010 6011 rods i ve always used for root passes usually on pipe.
Also referred to as a low hydrogen rod this electrode has a flux coating with a very low hydrogen content allowing a minimal amount of hydrogen into the weld puddle the molten weld beads are protected from contamination moisture and hydrogen in the atmosphere by the iron containing powder.
The following is a quick welding rod guide list from e6010 through e11018.
Now that we ve nailed down a surefire way to figure out for example the 7018 welding rod meaning we can take a look at the other types of popular welding rods.
The 7018 arc welding rod is commonly used for general purpose welding of carbon steel.
E6010 e6011 welding rod use.