E4043 aluminum electrode

E4043 aluminum electrode is a type of aluminum stick welding electrode. It is made from a silicon-based aluminum alloy and coated with salt-base flux. It features a  stable arc, low spatter, good weldability and high resistance to thermal cracking, making it one of the most widely used aluminum electrodes. Applications: Ideal for welding cast aluminum and 6000-series aluminum alloys (e.g., 6061, 6063).

WIRE COMPOSITION (%)

	Si	Fe	Cu	Mn	Mg	Zn
AWS standards	4.5-6.0	0.80	0.30	0.05	0.05	0.10
Weld Metal	5.25	0.67	0.23	0.04	0.04	0.08

Conforms to:       AWS A5.3/A5.3M:1999                   GB/T1173-2013

 Key Features

A general purpose electrode for welding all cast, wrought and extruded aluminum alloys with copper.

Used in any position to produce dense and porosity-free machinable weld

Can be used in SMAW welding (stick welding).

Can also be used as a brazing alloy with a gas torch.

 Applications:

Ideal for welding cast aluminum and 6000-series aluminum alloys (e.g., 6061, 6063)

Arc welding aluminums alloyed with copper, silicon and manganese

Excellent for joining dissimilar grades of aluminum.

Diameters/Packing

Sizes in available:     2.4mm    3.2  mm    4.0 mm

Available Package:   350mm   in length,  1kg/tube,  20kgs/ carton pack

Typical Welding Metal Properties

	Tensile Strength (Mpa)	Cold Angle D=2T
Standard Value	≥ 95	——
Typical Value	110-140	120-180

Typical Welding Procedures (DCEP)

Rod Diameter	Welding Current
2.4 mm  (3/32”)	50-85 A
3.2 mm (1/8”)	80-110 A
4.0 mm (5/32”)	110-150 A

 

Handling Precautions

1. Storage: Store electrodes in a dry, sealed container to prevent moisture absorption and degradation.
2. Surface cleaning:Clean the workpieces thoroughly before welding and perform post-weld cleaning to remove slags