Class: ER4043

AWS: A5.10

Conforms to Certification: AWS A5.10             ASME SFA A5.10

Weld Process: Tig (GTAW)

AWS Chemical Composition Requirements
Si = 4.5 – 6.0	Mg = 0.05 max
Fe = 0.80 max	Zn = 0.10 max
Cu = 0.30 max	Ti = 0.20 max
Mn = 0.05 max	Al = Remainder
Be = 0.0003 max	Other = 0.05 each – 0.15 total

Available Sizes
1/16 x 36
3/32 x 36
1/8 x 36
5/32 x 36

Application
ER4043 aluminum filler materials are silicon-aluminum types for welding of 6052 and 6063 types; in some cases, other aluminums are also welded with this type. Brazing of 1100 and 3003 can be accomplished with free flowing 4043 composition.

• Welding Filler Wire

The proper choice of aluminum filler metal mainly depends on the base metal properties to be achieved and welding technique. Post weld cracking, corrosion resistance and behavior under elevated temperature also need to be taken into consideration. Cracking usually can be minimized by choosing a filler metal alloy of higher alloy content then the base metal.

Deposited Chemical Composition % (Typical)
Deposited chemistry is influenced by many factors so no typical analysis can be recorded.

Deposited All Weld Metal Properties %
As-Welded

Deposited all weld metal properties are influenced by many factors such as weld process used, so no typical weld metal properties can be reported.

Deposited Charpy-V-Notch Impact Properties %
Not applicable