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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.

3/32" ER4043 Harris® 4043 Aluminum MIG Welding Wire 16# Spool

Airgas Part #:HAR0404357

Harris Welco

Manufacturer #:0404357



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$7.86 /US Pound
Package Size: 16 US pound
$7.86 US Pound
$7.86 US Pound
$125.76 Spool 16 US pound / Spool

Typically in Stock

Item Details

  • Harris® Aluminum MIG Welding Wire of 3/32" 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 12" spool of 16 lb. Wire meets the rigid requirements of AWS A5.10 ABS/CWB/Designation AlSi5.


  • Alloy 4043 is an all position 5% silicon alloy used to weld heat treatable base alloys
  • It is most often used to weld the 6XXX series of alloys
  • The silicon addition improves puddle fluidity, producing an appealing bead profile
  • It is less crack sensitive on the 6XXX series than other welding alloys


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


  • Truck trailers
  • Bicycles

Product Attributes


» 3/32"


» 16 lb

AWS Classification

» ER4043

Trade Name

» Harris®

Spool Diameter

» 12"