Weld Parameter Chart - Miller Millermatic 300 Owner's Manual

4-3. Weld Parameter Chart

SelectingWire, Gasand ControlSettings
What Material
are You Welding?
Steel
Steel - for outdoor, windy
applications or when weld
appearance is not critical.
Stainless steel
Aluminum with
Optional Spoolmatic
or 30A spool gun
OM-1321 Page 18
Suggested Suggested
Wire Types Shielding Gases
and Flow Rate
Solid (or hard) 100% CO
ER70S-6
75% Ar/25% CO
(Ar/CO
spatter − better overall
appearance)
Flux core No shielding gas required
E71T-GS
Flux core
100% CO
E71T-1
75% Ar/25% CO
Stainless steel Tri-Mix, 20 cfh
ER 308, ER308L (90% He/7.5% Ar/
ER 308LSi 2.5% CO
Aluminum
100% Ar, 20 cfh
15A
4043 AL
Wire Sizes
(Diameter)
, 20 cfh
.023" (0.6 mm)
2
.030" (0.8 mm)
.035" (0.9 mm)
.045" (1.1 mm)
.052" (1.3 mm)
1/16" (1.6 mm)
, 20 cfh
2 .023" (0.6 mm)
produces less
.030" (0.8 mm)
2
.035" (0.9 mm)
.045" (1.1 mm)
.052" (1.3 mm)
1/16" (1.6 mm)
.030" (0.8 mm)
.035" (0.9
.045" (1.1
1/16" (1.6 mm)
, 20 cfh
.035" (0.9 mm)
2
, 20 cfh
.045" (1.1 mm)
2
.052" (1.3 mm)
.023" (0.6 mm)
.030" (0.8 mm)
)
.035" (0.9 mm)
2
.045" (1.1 mm)
.030" (0.8 mm)
.035" (0.9 mm)
.047" (1.2 mm)
mm)
mm)