Learn More .030" NEO-ARC™ ER70S-3 Carbon Steel MIG Wire 11 LB Plastic Spool 4 Pack The NEO-ARC ER70S-3 .030" Carbon Steel MIG Welding Wire, a premium copper-coated mild steel solid filler metal, guarantees maximum weld quality and consistency for various welding wire users. NEO-ARC™ ER70S-3 0.030” Carbon Steel Welding Wire... Learn More Learn More