Carbon Steel MIG WireCarbon Steel MIG wires are used for welding carbon steels of most, but not all grades are available. In carbon steels other elements such as manganese and silicon are added to improve the mechanical properties. In MIG welding carbon steels the shielding gases used, contain amounts of carbon dioxide and or oxygen to help arc stability or improve the weld bead characteristics. These gases oxidise elements within the steel, notably manganese and silicon. To counter this, more deoxidising elements are need and these are added via the filler wire. Higher the oxidation potential of the shielding gas, the more deoxidising elements that need to be added. It is usual when welding carbon steels, to select a filler wire that most closely matches the mechanical properties and the chemical composition of the parent plate. Each steel must be treated separately in terms of filler metal selection, although one filler wire may be suitable for welding a variety of different steels.
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