GB_AU_NZ-3
Recommended Shade Numbers
for Arc Welding and Allied Processes
NOTES:
1. For other welding processes (e.g., laser welding, electron beam welding), consult your safety
manager or the manufacturer for eye protection recommendations.
2. For pulsed GMAW (MIG), use peak current for selecting the appropriate shade number.
Operation
Current in amperes
0.5
1.0
2.5
5.0
7
7
8
8
8
9
10
10
11
10
10
10
10
10
8
10
11
10
20
40
80
125
175
225
275
350
450
500
400
300
250
200
150
100
60
30
15
SMAW
(Covered electrodes)
GMAW
(MIG)
GTAW
(TIG)
Air carbon
arc cutting
Plasma arc
cutting
Plasma arc
welding
Figure 1: Referenced From the CSA Z94.3 Standard
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