T-PUT Union TG 55 M description: Union TG55 M is an all position flux cored wire that displays exceptional high impact properties in the as welded as well as in the stress relieved condition with mixed gas M21 acc. to EN ISO 14175. This “welder friendly” wire with its soft, spatterfree arc always operates in the spray arc mode. It is possible to weld in all positions with one diameter (1.2 mm from 160 A to 250 A), so ideal for fit-up work.