HYW ER4043 aluminum MIG welding wire on full 16 lb spools for production welding. ER4043 is a general-purpose aluminum-silicon (Al-5%Si) filler with excellent fluidity, low crack sensitivity, and a bright finish, ideal for 6xxx-series extrusions, castings, and general fabrication. Select your diameter from the dropdown. Need smaller 1 lb rolls? See our ER4043 1 lb Rolls listing.
Key Features
› AWS A5.10 classification ER4043 (Al-Si, ~5% Si)
› Full 16 lb spools for high-volume MIG welding
› Smooth arc, excellent wetting and fluidity
› Lower hot-crack sensitivity than 5xxx-series fillers
› Imported and Made-in-North-America options
Ideal Applications
› 6061, 6063 and other 6xxx-series extrusions and sheet
› Aluminum castings and cast-to-wrought joints
› Automotive, marine, and general fabrication / repair
Technical Specifications
AWS Classification
ER4043 (AWS A5.10)
Process
GMAW (MIG)
Package
16 lb spool
Diameters
.030", .035", 3/64"
Shielding Gas
100% Argon
Store wire in a dry location and keep spools sealed to avoid surface oxidation.
Typical Chemical Composition
Typical filler analysis (wt %). Single values are maximums; aluminum is the balance.
This product can expose you to chemicals including manganese, which is known to the State of California to cause birth defects or other reproductive harm. Welding fumes from this product can also expose you to chemicals known to cause cancer. For more information go to www.P65Warnings.ca.gov.
