Conforms to AWS A5. 18 ER70S-6,Available wire diameters: 0. 030"(0. 8mm), 10 Pound Spool All Positions, Single and multi pass welding The ER70S-6 mild steel welding wire that contains higher levels of manganese and silicon than other standard grades of MIG wire Used with 100% CO2 or CO2/Argon Mix shielding gas Suitable for TL-200M and TL-250M Pro MIG Welder (Solid Wire MIG Welding)