Miller Multimatic 200 - Common GMAW (MIG) Shielding Gases

OM-253392 Page 50
9-16. Common GMAW (MIG) Shielding Gases
This is a general chart for common gases and where they are used. Many different combinations (mixtures) of shielding gases have been developed
over the years. The most commonly used shielding gases are listed in the following table.
Application
Gas
Spray Arc
Steel
Short
Circuiting
Steel
Spray Arc
Stainless
Steel
Short
Circuiting
Stainless
Steel
Spray Arc
Aluminum
Short
Circuiting
Aluminum
GMAW-P
Argon All Positions All Positions All Positions
Argon + 1% O
2
Flat &
Horizontal Fillet
Flat &
Horizontal Fillet
All Positions
Argon + 2% O
2
Flat &
Horizontal Fillet
Flat &
Horizontal Fillet
All Positions
Argon + 5%
CO
2
Flat &
Horizontal Fillet
All Positions
Argon + 10%
CO
2
Flat &
Horizontal Fillet
All Positions
All Positions
Argon + 25%
CO
2
All Positions
Argon + 50%
CO
2
All Positions
CO
2
All Positions
Helium All Positions
1
Argon +
Helium
All Positions
1
Tri-Mix
2
All Positions
1 Heavy Thicknesses
2 90% HE + 7-1/2% AR + 2-1/2% CO
2