AWS A5.10 ER4043 Welding Wire/Rod

Weldermetals is one of the leading suppliers, exporter, stockiest of MIG/TIG welding wires, rods and electrodes for aluminum alloy materials. AWS A5.10 specified requirements for the classification of solid wires and rods for fusion welding of aluminum and aluminum alloys. ER4043 is a type of welded filler metal containing 2% alloying elements and 4.5-6.0% Si, it is often used as filling material for argon-arc welding and oxyacetylene welding of Si-Al alloy work-piece, especially for strengthening aluminum alloy which is prone to generate heat treatment crack, Suitable for welding of 6000 series aluminum alloy base material such as 6063,6061 etc

AWS A5.10 ER4043 Specifications

Weld Process Mig/Tig (GTAW)
Coils wires 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.5mm, 1.6mm, 2.0mm
Straight wires 2.0mm、2.4mm、3.0mm、4.0mm
Surface treatment Bright finish

AWS A5.10 ER4043 Chemical Composition



ISO 18273 Al Si Fe Cu· Mn Mg Zn Ti


Al4043 Rem 4.5-6.0 0.8 0.3 0.05 0.05 0.1 0.2

AWS A5.10 ER4043 Mechanical Property

Yield strength, Mpa Tensile Strength, Mpa Elongation, %
25 80 25

Our aluminum welding wires have wide applications because of their high quality and stability. The Aluminum alloy wires ER4043/R4043 supplied by us are in strict accordance with AWS A5.10 and other equivalent standards. We provide not only high-quality aluminum welding products but also have access to a vast stock of stainless steel, titanium, copper and other alloys to American, European and Chinese specifications. we are here and our experienced technical team is waiting to help you with your inquiry, so contact us now!

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