Welding Gas For Mig Mild Steel. MIG gas rates tend to be very low compared to other forms of welding The gas flow rate from the shield gas is measured in CFM or Cubic Feet Per Minute. This shielding gas helps keep the flame steady and reduces spatter while still providing deep enough penetration.
Yes 100 Argon can be used to MIG weld steel but youre likely to get an unattractive weld bead that is tall and narrow often with a weld-weakening undercut. Different areas or different conditions can affect CFM numbers. A shielding gas is also sent through the welding gun and protects the weld.
He said to strictly stay with 75 C0225 argon.
For example you can weld mild steel with any of the following shielding gases. Can I use argon for MIG welding mild steel. Carbon Steel MIG Weld done with C25 Gas. 100 Carbon Dioxide 75 Argon 25 Carbon Dioxide 7525 90 Argon 10 Carbon Dioxide 9010.