16. common mig shielding gases – Miller Electric 172 M-10 Gun User Manual

Page 36

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OM-1318 Page 32

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.

Application

Gas

Spray Arc Steel

Short Circuiting Steel

Short Circuiting

Stainless Steel

Short Circuiting

Aluminum

Argon

All Positions

Argon + 25% CO

2

Flat & Horizontal

1

Fillet

All Positions

All Positions

2

CO

2

Flat & Horizontal

1

Fillet

All Positions

Tri-Mix

3

All Positions

1

Globular Transfer

2

Single Pass Welding Only

3

90% HE + 7-1/2% AR + 2-1/2% CO

2

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