• ESAB® Elite Series Spoolarc® 86 ER70S-6 MIG Welding Wire is copper coated and includes manganese as well as silicon to a greater extent. 0.045" Dia wire works well for many carbon steel welding applications using the GMAW process. Manganese and silicon present in the wire to a higher level also provide excellent wetting action and a highly fluid weld puddle. Wire offers a high degree of tolerance towards rust and scale ideal to be used for butt, fillet welding of sheet and plate of varying thickness. HVAC duct work, heavy equipment, structural and general carbon steel fabrication tasks require the usage of this wire which comes in a 44 lb spool of 12" Dia.