Alloy 4043
PN: 0404320


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Alloy 4043 (TIG)

Description: Aluminum TIG welding alloy

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.

Typical Application:  Common applications are automotive parts, truck trailers and bicycles. It is also ideally suited for brazing thin aluminum sheet and tubing.

Welding
  • Part NumberSize
    04043203/64" x 36" - (1.18mm x 914mm) 10# (4.53kg) Box  Special Order
    04043301/16” x 36” - (1.6mm x 914mm) 10# (4.53kg) Box
    04043503/32" x 36" - (2.3mm x 914mm) 10# (4.53kg) Box
    A4043503/32” x 36” - 50# Box
    04043601/8" x 36" - (3.17mm x 914mm) 5# (2.26kg) Box
    A4043601/8" x 36" - (3.17mm x 914mm) 10# (4.53kg) Box
    04043705/32" x 36" - (3.96mm x 914mm) 10# (4.53kg) Box
    04043803/16" x 36" - (4.76mm x 914mm) 10# (4.53kg) Box
    40433011POP1/16” x 36” - 1# Box
    0404390 1/4" x 36" - (6.35mm x 914mm) 10# (4.53kg) Box
    40436011POP1/8” x 36” - 1# Box
    40433033POP1/16” x 36” - 3# Box
    40435011POP3/32” x 36” - 1# Box
    40435033POP3/32” x 36” - 3 Box
    40436033POP1/8” x 36” - 3# Box
    Click Part Number to view its Typical Certificate
  • Chemical CompositionAWSShielding GasCommercial SpecificationDIN EN RatingMelting Range
    Si - 4.5-6%
    Fe - 0.8%
    Cu - 0.3%
    Mn - 0.05%
    Mg - 0.05%
    Zn - 0.1%
    Ti - 0.2%
    Al - Rem%
    Others - 0.15%
    AWS A5.10, AWS A5.3;ASME SFA5.10CO2/ARGONUNS-A940431732 SG Al Si 5575-630°C
  • MSDSWelding ParametersSpec Sheet