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Guide for Shade Numbers
Shade numbers are given as a guide only and may be varied to suit individual needs.
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Shielded Metal Arc
Welding (SMAW)
Less than 3/32" (2.4 mm) Less than 60 7 —
3/32 – 5/32" (2.4 – 4.0 mm) 60 –160 8 10
5/32 – 1/4" (4.0 – 6.4 mm) 160 – 250 10 12
More than 1/4" (6.4 mm) 250 – 550 11 14
Gas Metal Arc Welding
(GMAW) and Flux-Cored
Arc Welding (FCAW)
Less than 60 7 —
60 –160 10 11
160 – 250 10 12
250 – 550 10 14
Gas Tungsten Arc
Welding (GTAW)
Less than 50 8 10
50 –150 8 12
150 – 500 10 14
Air Carbon Arc
Cutting (CAC-A)
SLQZG- Less than 500 10 12
Z6F!H- 500 –1000 11 14
Plasma Arc Welding (PAW)
Less than 20 6 6 to 8
20 –100 8 10
100 – 400 10 12
400 – 800 11 14
Plasma Arc Cutting (PAC)
Less than 20 4 4
20 – 40 5 5
40 – 60 6 6
60 – 80 8 8
80 – 300 8 9
300 – 400 9 12
400 – 800 10 14
Torch Brazing (TB) — — 3 or 4
Torch Soldering (TS) — — 2
Carbon Arc Welding (CAW) — — 14
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Oxyfuel Gas Welding (OFW)
Light
Medium
Heavy
Under 1/8"
1/8 to 1/2"
Over 1/2"
Under 3 mm
3 to 13 mm
Over 13 mm
4 or 5
5 or 6
6 or 8
Oxygen Cutting (OC)
Light
Medium
Heavy
Under 1"
1 to 6"
Over 6"
Under 25 mm
25 to 150 mm
Over 150 mm
3 or 4
4 or 5
5 or 6
a
As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lighter shade which
gives sufficient view of the weld zone without going below the minimum. In oxyfuel gas welding, cutting, or
brazing where the torch and/or the flux produces a high yellow light, it is desirable to use a filter lens that
absorbs the yellow or sodium line of the visible light spectrum.
Data from ANSI Z49.1 : 2012
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