Solid Welding Wire

Solid welding wire is the continuous, copper-coated or bare wire fed through a MIG/MAG gun to make clean, low-spatter welds on carbon, low-alloy and stainless steels. For structural fabrication, tank building, skids and general plant maintenance in Oman and the GCC, the most common choice is AWS A5.18 ER70S-6, whose higher silicon and manganese content tolerates light mill scale and gives good wetting. ER70S-3 and ER70S-4 suit cleaner plate, while ER80S-G and higher grades serve higher-strength steels.

Thin or sheet work often runs on short-circuit transfer with an argon-CO2 mix, whereas thicker plate uses spray or pulsed transfer for deeper fusion. Wire diameter, usually 0.8 to 1.6 mm, should be matched to joint thickness and the power source. Stainless solid wires such as ER308L and ER316L cover process piping and food-grade work.

Seven Star LLC supplies solid wire in spooled and drum packs, including LongTeng and Lincoln Electric grades. For heavier deposition, compare flux-cored welding wire; for root passes and precision joints see TIG welding wire. The wire is run on MIG/MAG welding machines fitted with the right TIG torches and MIG guns, and the wider range is listed under welding consumables.