How Much Gas For Mig Welding. How much gas does MIG welding use. Dave Selover if using 38 inch nozzle minimum cfm is 15 with 18-22 cfm is in normal range 30 cfm being the maximum setting.
The most commonly used shielding gas for home and hobby MIG welding is C25 75 Argon gas and 25 Carbon Dioxide. For DIY mig you should use around 10 lpm liter per minute Im not sure how that works with the disposable bottles but surely there will be someone around soon who knows more about that. Typical gas flow when MIG welding varies for different inside nozzle diameters.
So what is the correct gas flow rate for welding.
So what is the correct gas flow rate for welding. For ⅝ inch nozzles the types often used in industrial settings you should use around 30-35 CFH. In some cases there is tri-mix shielding gas containing 90 Helium 75 Argon and 25Carbon dioxide. The purity of the gas used for root protection should be at least 99995.