Can Wrought Iron Be Mig Welded

Mig welding cast iron cast iron can be welded perfectly well using a stick welder and nickel rods or with pre heating by a gas welder using cast iron rod.

Can wrought iron be mig welded. As mentioned earlier the r tech team recommends mma stick welding as first choice for welding cast iron. Wrought iron is a metal that has a very low carbon content only about 035 in fact. Wrought iron is made up of layers of virtually pure iron and layers of the impurities.

Bridges were made from wrought iron. If you are welding across the grain you will get porosity caused by the impurities. It can be done and without too much difficulty although the resulting join won t be as strong as the more accepted methods.

Guideline for cast iron welding. Mig welding cast iron although cast iron can be welded with the mig process and specialised flux cored electrode wires the resulting welded joint won t be as strong as with mma arc welding. If you select the gray cast iron to go forward you can follow this guideline.

I doubt you will get wrought iron. However excessive penetration into the parent plate should be avoided to reduce the risk of slag inclusions in the weld metal. But what if you fancy doing it with a mig welder.

There is strong possibility that you will get lamellar tearing pulling the layers apart but its difficult to avoid so it has to be accepted. Therefore if you are welding the surface you will be welding pure iron which is easily done. Welding doesn t work well on wrought iron due to the lamination of slag impurities and soft ductile pure iron.

Decide first which welding process tig mig you will use to weld the gray cast iron. The procedure for welding wrought iron is in general the same as that used for welding structural steel. They are still standing today but they were hot riveted not welded.