Hobart MaxalTig 5554 description: 5554 filler metal is the most common aluminum/magnesium alloy for welding 5454 base metal where sustained elevated temperatures above 150 degrees F are experienced. Features/Benefits: - Moderate strength (33 ksi typical) - Most common 5xxx filler alloy for welding 5454 base material in elevated temperature applications - Higher ductility/formability - Higher column strength/better feedability - Good color match after anodizing with 5xxx/6xxx base materials - Higher hot cracking sensitivity in some applications.