ER4043 - MIG Aluminum Welding Wire - 1 Lb x 0.035" (4 ...
Make sure this fits by entering your model number. ER4043, commonly referred to as AlSi5", has a 5% silicon and is the oldest and one of the most widely used aluminum welding wires for general purpose applications. Less sensitive to weld cracking than other aluminum alloys and the 5% silicon content lowers the melting point, increases fluidity of the weld puddle and leaves a bright shiny weld deposit.
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