Mig Welding Wire Size Mm

Double click on chart to view quick guide for selecting mig wire size and welder amperage for your application.

Mig welding wire size mm.

Check with your machine manufacturer for any information that may pertain to your welding system. All seems well until we look at current density. A quality mig wire is critical in robotic welding applications. Material thickness determines amperage.

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. 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. Where the figures are against a grey background the wire size isn t really suitable for the material thickness.

Choose from various diameters of wire for different welders and welding projects. To make the same weld at same travel speed same deposition we need 325 ipm of mig wire when using 035. The 0 6mm wire size figures have been tested to 2mm and the figures are extrapolated. When welding with flux core wire the parameters can be entirely different.

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. 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. The welding itself requires very little skill providing the mig welder settings are correct for the application.

As a guideline each 001 inch of material thickness requires 1 amp of output. Better wash in may be a requirement in applications subject to fatigue. 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. When good results are achieved record the parameters.

Er70s 6 wire can provide better wetting at the weld toe when compared to an er70s 3 wire.