Grey cast iron

White cast iron

Nodular cast iron

Malleable cast iron

1.6 mm

2.0 mm

2.5 mm

3.15 mm

To prevent rusting

To stabilize the arc

To control arc temperature

To increase welding current

Pre heat the base metal

Push the molten metal

Remove the excess metal

Release excess oxygen and to push the molten metal

Bent nozzle with three pre-heating holes

Straight nozzle with six pre-heating holes

Bent nozzle with six holes

Flute cutting straight with six holes