ALUMINIUM WELDING
WIRE
ER 4047
Description
Aluminium wires and rods for welding and
brazing.Good mechanical characteristics, their excellent
corrosion resistance and low melting point ensure a very low
number of deformations in the origin metal. This material is
generally used for brazing aluminium sheets, for extrusions
and castings. (After anodizing the welding will be of a
different colour)
Chemical composition :
Si 11.0-13.0 , Fe <0.50, Cu <0.05, Mn <0.15, Mg <0.05,
Zn <0.10, Ti < 0.15, Al remainder
Minimal Values of the Mechanical
Properties (Welded Metal)
Tensile Strength :
Rm : 130 N/mm2
Yield Strength :
Rp 0, 2 : 60 N/mm2
Elongation :
L=5d : 5%
Melting range :
573-585 deg. C
Shielding Gases for GMAW/GTAW
Ar 99, 95% min
Materials to be welded
G-Al Si 10 Mg, G-A1 Si 11, G-A1 Si 12 (Cu), G-A1 Si 7 Mg,
G-A1 Si 6 Cu 4, Al Mg Si 0.8, Al Mg Si 1,
(use flux when brazing oxyacetylene)
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