ER4043 Aluminum Welding Wire Spools Weldcote

ER4043 is a general-purpose type aluminum
welding wire. It is one of the oldest and
most widely used welding and brazing alloys.
This aluminum alloy contains silicon additives,
which result in improved fluidity (wetting action)
of the weld pool and also produces a weld less
sensitive to cracking. Its bright weld finish makes
it a popular choice of welders. ER4043 can be
used to weld various grades of aluminum.

Applications
• Welding filler wire
• Spray and flame metallizing wire

AWS Specification
AWS A5.10/A5.10M:1999(R2007)
AWS Classification ER4043

Welding Current
DCEP

Typical Wire Chemistry
Si 4.5 - 6.0
Fe 0.8
Cu 0.30
Mn 0.05
Mg 0.05
Zn 0.10
Ti 0.20
OTHER 0.15
AI REM

Typical Properties
Melting range 1170 - 1605ºF
Conductivity 42% IACS ( - O)
Density 0.097 lbs/cu in
Anodized color Gray
Tensile Strength, ksi 29

Welding Positions
All positions

Available Diameters GMAW and
suggested Operating Range in Amps
.030" 100 - 120
.035" 110 - 170
3/64" 150 - 190
1/16" 200 - 300
3/32" 320 - 330

Available Diameters GTAW
1/16", 3/32", 1/8", 5/32" & 3/16"