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Nexalloy ER4043 Aluminum TIG Rods – 10lbs, 36" Length

Nexalloy
|
MWER4043-364
  • .045 inch (1.2mm)
  • 1/16 inch (1.6mm)
  • 3/32 inch (2.4mm)
  • 1/8 inch (3.2mm)
  • 5/32 inch (4.0mm)
$129.00 $0.00( / )
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QTY Discount
2+ 3%
10+ 5%
20+ 7%
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Nexalloy ER4043 Aluminum TIG Rods – 10lbs, 36" Length

Nexalloy ER4043 Aluminum TIG Welding Rods are formulated for 6xxx series aluminum alloys. A 5% silicon additive enhances fluidity, making the rod easy to use and producing strong, smooth welds with minimal spatter. Ideal for automotive parts, bicycles, and aluminum sculptures, and excellent in both pulsed and non-pulsed TIG welding.

Key Features

  • Premium choice for 6xxx series aluminum alloys
  • 5% silicon enhances fluidity during welding
  • Easy to use — strong, smooth welds with minimal spatter
  • Ideal for automotive parts, bicycles, and aluminum sculptures
  • Works in pulsed and non-pulsed TIG welding

Technical Specifications

AWS ClassificationER4043
Welding ProcessTIG (GTAW)
Base Alloys6xxx series aluminum
Silicon Content5%
Rod Length36"
Package Weight10 lbs
Available Diameters0.045", 1/16", 3/32", 1/8", 5/32"

Part Number & Size Reference

0.045" – SKU MWER4043-364 – $129.00 CAD
1/16" – SKU MWER4043-116 – $109.80 CAD
3/32" – SKU MWER4043-332 – $111.80 CAD
1/8" – SKU MWER4043-18 – $113.80 CAD
5/32" – SKU MWER4043-532 – $129.00 CAD

Other Products

ER5356 TIG Rods | ER5554 TIG Rods | ER4043 MIG Wire | E4043 Stick Electrodes

Frequently Asked Questions

ER4043 TIG rod is a silicon-alloyed filler for 6xxx series aluminum. The silicon content improves how the puddle flows, giving smooth, strong welds with minimal spatter — a common choice for general aluminum TIG work.

It matches 6xxx series aluminum and is commonly used on automotive parts, bicycles, and aluminum sculpture work where a clean weld bead matters.

These rods come in the standard 36" length used across most TIG welding setups.

It's available in 0.045", 1/16", 3/32", 1/8", and 5/32", covering thin sheet metal through heavier sections.

Yes — it performs well in both pulsed and non-pulsed TIG welding, so you're not limited by which technique you prefer to run.

It's generally considered easy to run, producing strong, smooth welds with minimal spatter, which makes it a reasonable rod to learn on as well as a dependable one for experienced welders.

Yes — it's specifically noted for aluminum sculpture work, along with automotive parts and bicycles, largely because of the clean, smooth bead it produces.

4043 is the better match when your base metal is a 6xxx series alloy, since its silicon content is tuned for that family's fluidity and crack resistance. 5356 is the better call for 5xxx, magnesium-based alloys instead.

Yes, automotive parts are one of the applications it's specifically suited for, alongside bicycles and sculptural work.

Its silicon content improves puddle fluidity, which generally translates to less spatter and a cleaner-looking weld compared to some alternative aluminum filler rods.