Hobart Welding Products 120 Manuale Utente

OM-210 088 Page 37

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.

All Positions

Flat & Horizontal

1

 Fillet

All Positions

All Positions

2

Flat & Horizontal

1

 Fillet

All Positions

All Positions

1

Globular Transfer

2

Single Pass Welding Only

3

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