Tweco Cigweld WeldSkill Auto Darkening Welding Helmets - Manual (Page 11)

WeldSkill Auto-Darkening Welding Helmets
10 February 29, 2012
Recommended Protective Filters for Electric Welding
Description of Process
Approximate range of
Welding Current in Amps
Minimum Shade
Number of Filter(s)
Less than or equal to 100 8
100 to 200 10
200 to 300 11
300 to 400 12
Manual Metal Arc Welding - covered
electrodes (MMAW)
Greater than 400 13
Less than or equal to 150 10
150 to 250 11
250 to 300 12
300 to 400 13
Gas Metal Arc Welding (GWAW) (MIG)
other than Aluminium and Stainless Steel
Greater than 400 14
Less than or equal to 250 12 Gas Metal Arc Welding (GMAW) (MIG)
Aluminium and Stainless Steel 250 to 350 13
Less than or equal to 100 10
100 to 200 11
200 to 250 12
250 to 350 13
Gas Tungsten Arc Welding (GTAW) (TIG)
Greater than 350 14
Less than or equal to 300 11
300 to 400 12
400 to 500 13
Flux-cored Arc Welding (FCAW)
-with or without shielding gas.
Greater than 500 14
Air – Arc Gouging Less than or equal to 400 12
50 to 100 10
100 to 400 12 Plasma-Arc Cutting
400 to 800 14
Plasma-Arc Spraying — 15
Less than or equal to 20 8
20 to 100 10
100 to 400 12
Plasma-Arc Welding
400 to 800 14
Submerged-Arc Welding — 2(5)
Resistance Welding — Safety Spectacles or
eye shield
Table 1 – Recommended Filter Lens Shade Settings.
Refer to standard AS/NZS 1338.1:1992 for comprehensive information regarding Table 1