OK 96.50 SMAW Type Chloride and fluoride salt EL-AlSi12 Description An electrode for welding cast aluminium alloys. Also suitable for welding rolled aluminium alloys or joining them to cast items. Welding current DC+ Classifications DIN 1732 EL-AlSi12 Typical all weld metal composition, % Si Al Fe 12.3 87.5 <0.5