ER70S 6 MIG Premium Welding Wire, Carbon Steel, 0.030 in dia, 33 lb Spool ORS NASCO Excellent dielectric strength Electrical properties are Excellent dielectric strength Electrical properties are stable up to (105º C 220º F) Cotton bias cloth Fine adjustment for optimum adaptation to different size workpieces and a comfortable gripping position Self locking on pipes and nuts: no slipping off the workpiece and low hand force required Gripping surfaces with special hardened teeth x ray quality welds at the highest tensile strength of all the plain carbon steel wires Requires a shielding gas of CO2 and or CO2 mix Mild steel welding wire that contains high levels of manganese and silicon which produces high quality welds when used on dirty