Mig Welding Wire Size Mm

Choose from various diameters of wire for different welders and welding projects.

Mig welding wire size mm.

Double click on chart to view quick guide for selecting mig wire size and welder amperage for your application. Er70s 6 wire can provide better wetting at the weld toe when compared to an er70s 3 wire. A quality mig wire is critical in robotic welding applications. We can run 045 wire at 200 inches per minute ipm which will deposit about 5 4 pounds per hour of weld at about 24 ipm of travel speed.

Better wash in may be a requirement in applications subject to fatigue. Check with your machine manufacturer for any information that may pertain to your welding system. The welding itself requires very little skill providing the mig welder settings are correct for the application. All seems well until we look at current density.

Material thickness determines amperage. Grainger carries a large stock of mig welding wire and flux core welding wire to meet your welding needs including aluminum carbon steel copper coated mild steel stainless steel and more. As a guideline each 001 inch of material thickness requires 1 amp of output. The 0 8mm figures have been extrapolated from the 0 6mm results so will be less reliable but they are at least a starting point.

125 inch 125 amps. The 0 6mm wire size figures have been tested to 2mm and the figures are extrapolated. Joint design position and other factors affect results and settings. When good results are achieved record the parameters.

The information in this article pertain to welding with solid wire. To make the same weld at same travel speed same deposition we need 325 ipm of mig wire when using 035. The following basic guidelines are for mig welding steel with solid wire. Unlike welding with a stick welder mig welding is a semi automatic process.

Material thickness 024 030 035 045 030 035 045 24 gauge 025.