Masterweld Pulse-Expert M-400S, Operator'S Manual, Page: 15 / 25

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TIG Welding Guide Ranges
Electrode diameter DC current (amps)
0.040" (1.0mm) 30 – 60
1/16" (1.6mm) 60 – 115
3/32" (2.4mm) 100 – 165
Tungsten Electrode Types
Electrode
type
Welding application
Colour
code
Thoriated
2%
DC welding of mild steel, stainless
steel and copper. Excellent arc
starting, long life, high current
carrying capacity.
RED
Ceriated
2%
DC welding of mild steel, stainless
steel, copper, aluminium, their alloys
longer life, more stable arc, easier
starting, wider current range, narrower
more concentrated arc
GREY
Guide for Selecting Filler Wire Diameter
Filler wire
diameter
DC current range
1/16" (1.6 mm) 20 - 90
3/32" (2.4 mm) 65 - 115
1/8" (3.2 mm) 100 - 165
3/16" (4.8 mm) 200 - 350
The filler wire diameter specified is a guide only, other diameter
wires may be used according to the welding application.
Shielding Gas Selection
Alloy Shielding gas
Aluminium & alloys Pure Argon
Carbon steel Pure Argon
Stainless steel Pure Argon
Nickel alloy Pure Argon
Copper Pure Argon
Titanium Pure Argon
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6.9 List of Jobs and Functions