Forjado a fuego

Four smiths are in for a twist when they are tasked with forging signature blades from either a large suspension cable or thin piano wire. After two intense rounds that come down to the wire, two return home to recreate the legendary Sword of Saladin, one of the sharpest blades in the world. Which smith's weapon will cut through the competition, leading them to victory and a check for $10,000?