These wires are designed to meet minimum tensile strength requirements of 70 000 psi.
Mig wire types and uses.
You need filler wire to weld with because that is what is used to fuse the joint you are welding together.
But which one is best for a particular application.
In mig welding when it comes to choosing the type of wire it largely depends on the metal being welded most of welders choose a filler metal that is of the same type metal to be welded so that if you are about to weld stainless steel then you need to go for a welding wire that is made up of stainless steel.
This shielding gas will protect the molten weld pool from any contaminants found in the atmosphere while you weld.
These require a shielding gas that comes from a pressurized gas bottle.
What newbies may not know is that there are so many wire types available that can tackle vastly different projects.
Most of the time argon or a 75 25 argon to helium mixture is used for the gas.
The most common types of mig wire for welding mild steel are er70s 3 and er70s 6.
Mig welds typically use solid wire electrodes.
The lstands for low carbon which provides extra corrosion resistance.
Mig welding wire is has to be the same type of metal as the base metal you are welding base metal is the piece you are welding to another piece.
Er70s 3 is typically used on clean oil free and rust free base material.
Types of mig welding wire types for any project when most people think of mig welding they think of hardwire a mild steel process in which er 70 wire is used to weld regular steel.