Er4043 Aluminium Brazing Wire

Introduction of Er4043 Aluminium Brazing Wire
Er4043 Aluminium Brazing Wire is an alloy welding wire containing 5% silicon, suitable for welding cast aluminum alloys
Standard: GB/T10858 SAI4043 AWS A5.1 ER4043
Composition: Si=4.5-6.0%; Fe≤0.8%; Al balance.
 
Characteristics of Er4043 Aluminium Brazing Wire
The melting point of Er4043 Aluminium Brazing Wire is 573-625°C. It has good fluidity, strong thermal crack resistance, but insufficient ductility. Due to the high silicon content, when used for welding of high-magnesium alloys, brittle Mg2Si is easily formed in the weld, which reduces the plasticity and corrosion resistance of the joint. In addition, the color of the weld surface is dark, and the color of the base material is different after anodization.
 
Application of Er4043 Aluminium Brazing Wire
Er4043 Aluminium Brazing Wire is used as a filler material for argon arc welding and gas welding of aluminum alloy workpieces and castings other than aluminum-magnesium alloys. Commonly used for welding 600 series aluminum alloys such as 6061, 3000 series and 2000 series aluminum alloys and cast aluminum.