Mig Welding Wire Size Mm

The information in this article pertain to welding with solid wire.

Mig welding wire size mm.

Where the figures are against a grey background the wire size isn t really suitable for the material thickness. When welding with flux core wire the parameters can be entirely different. Er70s 6 wire can provide better wetting at the weld toe when compared to an er70s 3 wire. To make the same weld at same travel speed same deposition we need 325 ipm of mig wire when using 035.

Unlike welding with a stick welder mig welding is a semi automatic process. Joint design position and other factors affect results and settings. Material thickness 024 030 035 045 030 035 045 24 gauge 025. The welding itself requires very little skill providing the mig welder settings are correct for the application.

The 0 6mm wire size figures have been tested to 2mm and the figures are extrapolated. When good results are achieved record the parameters. 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. The following basic guidelines are for mig welding steel with solid wire.

Er70s 6 is also better for creating a smooth transition from the weld to the base metal also known as wash in or tie in. 125 inch 125 amps. Double click on chart to view quick guide for selecting mig wire size and welder amperage for your application. Check with your machine manufacturer for any information that may pertain to your welding system.

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. All seems well until we look at current density. Better wash in may be a requirement in applications subject to fatigue. Choose from various diameters of wire for different welders and welding projects.

As a guideline each 001 inch of material thickness requires 1 amp of output.