Lincoln Electric Lincolnweld L-60 EL12 Submerged Arc Welding wire, 1/8" (3.2 mm) diameter, 60 lb (27.2 kg) coils, Stock No. ED011743, AWS A5.17 EL12, ASME SFA-5.17 EL12, copper-coated mild steel, suitable for structural and pressure vessel welding, processed in the USA.  (sold 8x the money)