High-Strength Unalloyed Welding Wire
A copper-coated or bare solid wire with a defined analysis for GMAW of structural steels with increased yield strength. It ensures uniform current transfer and consistent penetration depth.
A high-strength non-alloy welding wire is basically a normal structural steel wire that gets its strength through the alloying elements – zinc has no business there, that's more for galvanizing. Carbon content is important, but high strength in such wires mainly comes from manganese and other alloying elements. If you pick the wrong wire, one that's too soft for the base material, the weld won't reach the required yield strength. If you take one that's too hard, the structure can become brittle and you'll get cracks. So make sure the wire matches the base material's strength, then the weld will usually be fine.