Miller Gold Seal 422 Manual do Proprietário - Página 31
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7-16. Common 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.
Gas
Argon
Argon + 25% CO
2
CO
2
3
Tri-Mix
1
Globular Transfer
2
Single Pass Welding Only
3
90% HE + 7-1/2% AR + 2-1/2% CO
Spray Arc Steel
Short Circuiting Steel
1
Flat & Horizontal
Fillet
1
Flat & Horizontal
Fillet
2
Application
Short Circuiting
Stainless Steel
All Positions
All Positions
All Positions
All Positions
Short Circuiting
Aluminum
All Positions
2
OM-187 926 Page 29