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WARNING: This product can expose you to chemicals including Nitrogen Dioxide, which is known to the State of California to cause cancer, and Carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

3/64" ER4043 Harris® 4043 Aluminum MIG Welding Wire 20# Spool

Airgas Part #:HAR0404329

Harris Welco

Manufacturer #:0404329



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$6.80 /US Pound
Package Size: 20 US pound
$6.80 US Pound
$6.80 US Pound
$136.00 Spool 20 US pound / Spool

Typically in Stock

Item Details

  • Harris® Aluminum MIG Welding Wire of 3/64" Dia is made of 4043 alloy with 5% silicon to render puddle fluidity and appealing bead profile. It is ideal to weld heat-treatable base alloys and provides metal transfer, arc stability with minimum spatter. It can be used in automotive parts, truck trailers and bicycles applications. It is suitable to weld the 6XXX series alloys and comes in a spool of 20 lb. Wire meets the rigid requirements of AWS A5.10 ABS/CWB/Designation AlSi5.


  • Generally recommended for welding 5052, any 6XXX series alloys and castings
  • All position welding
  • Made in the USA
  • Use on many weldable cast and wrought aluminum alloys


  • AWS A5.10
  • AWS A5.3
  • ASME SFA5.10


  • Truck trailers
  • Bicycles
  • Ideal for automotive components such as frame and drive shafts also bicycle frames

Product Attributes

AWS Classification

» ER4043

Trade Name

» Harris®


» 3/64"


» 20 lb