4043 is an aluminum/silicon filler metal designed for welding heat treatable base metals and is a common choice for welding 6061. 4043 offers good fluidity and less crack sensitivity than 5356 when welding 6000 series base metals. It is often used to for repair welding aluminum/silicon cast alloys such as grades 353/A356. Qualified to AWS A5.10 R4043, ABS, ISO Designation AlSi5, Alloy 4043 is a 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
- Co2/argon shielding gas
- 1065 deg F solidus temperature
- 1170 deg F liquidus temperature
- 0.097 lb/cu.in. density
- 15 volt ACHF
- 20 cfh argon gas flow
Harris® 0404350 Aluminum Welding Wire, Gas Shielded, Diameter: 3/32 Inch, Length: 36 Inch, Current Type: ACHF, Amperage: 70 - 100 amp, Package: 10 lb Box, AWS Class: AWS A5.10 Class R/ER 4043, Gray Post-Anodize, Tensile Strength: 27000 psi, Yield Strength: 18000 psi, Elongation in 2" (%): 8%, Welding Process: TIG (GTAW), Weld Metal Composition: 4.5 - 6% Silicon (Si), 0.8% Iron (Fe), 0.3% Copper (Cu), 0.05% Manganese (Mn), 0.05% Magnesium (Mg), 0.1% Zinc (Zn), 0.2% Titanium (Ti), Rem% Aluminum (Al), 0.15% Others, Melting Range: 575 - 630 deg C, Applicable Materials: Aluminum, Silicon Cast Alloys
