TIG guide tables

The tables in this chapter are given only as a general guidance. The information provided is based solely on the use of WC20 (grey) electrode and Argon gas.

TIG welding (AC)

Welding current range AC		Electrode (WC20)	Gas nozzle		Gas flow rate
Min. A	Max. A	ø mm	number	ø mm	l/min (Argon)
15	90	1.6	4 / 5 / 6	6.5 / 8.0 / 9.5	6…7
20	150	2.4	6 / 7	9.5 / 11.0	7…8
30	200	3.2	7 / 8 / 10	11.0 / 12.5 / 16	8…10
40	350	4.0	10 / 11	16 / 17.5	10…12

TIG welding (DC)

Welding current range DC		Electrode (WC20)	Gas nozzle		Gas flow rate
Min. A	Max. A	ø mm	number	ø mm	l/min (Argon)
5	80	1.0	4 / 5	6.5 / 8.0	5…6
70	140	1.6	4 / 5 / 6	6.5 / 8.0 / 9.5	6…7
140	230	2.4	6 / 7	9.5 / 11.0	7…8
225	330	3.2	7 / 8 / 10	11.0 / 12.5 / 16	8…10