6-16. 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

Short Circuiting

 

 

Stainless Steel

Aluminum

 

 

 

 

 

 

 

 

 

 

 

 

Argon

 

 

 

 

 

All Positions

 

 

 

 

 

 

 

Argon + 25% CO

2

Flat & Horizontal1 Fillet

All Positions

 

All Positions2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CO2

 

Flat & Horizontal1 Fillet

All Positions

 

 

 

 

 

 

 

 

 

 

Tri-Mix3

 

 

 

 

All Positions

 

1Globular Transfer

2Single Pass Welding Only

390% HE + 7-1/2% AR + 2-1/2% CO2

OM-194 199 Page 28

Page 31
Image 31
Craftsman 117.205710 operating instructions Common MIG Shielding Gases, Application, Flat & Horizontal1 Fillet