BÖHLER Bohler Union 4043 ALSi5 Aluminium TIG Filler Rod 2.5KG

Bohler 4043 Aluminium TIG Filler Rod containing 5% silicon. Filler Rod for GTAW of Al alloys containing up to 2% of alloying elements and for aluminium alloys containing up to 7% Si. Very fluid weld pool. Why use 4043 grade Aluminium wire?   General Purpose Welding: 4043 is often chosen as a general-purpose aluminum welding wire because it can be used for a wide range of aluminum alloys. It's suitable for welding 3003, 3004, 5052, 6061, and other common aluminum alloys. Good Fluidity: 4043 wire has good fluidity during welding, which means it flows smoothly and creates clean and aesthetically pleasing welds. Low Melting Point: It has a lower melting point compared to some other aluminum welding wires, making it suitable for thin aluminum materials and reducing the risk of burn-through. Low Hot Cracking Sensitivity: 4043 wire has relatively low hot cracking sensitivity, which means it is less likely to crack during the welding process, especially when used on aluminum alloys with a high thermal expansion coefficient. Corrosion Resistance: While not as corrosion-resistant as 5356 aluminum welding wire, 4043 still offers reasonable corrosion resistance, making it suitable for many applications. Heat-Treatable Alloys: It is commonly used for welding heat-treatable aluminum alloys because it minimizes the risk of affecting the heat treatment properties of the base metal. Marine and Automotive Applications: 4043 wire is often used in marine and automotive industries for tasks such as repairing aluminum boats or welding components in automotive applications.