Harris E70S6F8 ER70S-6 MS Spool with Welding Wire, 0.035 lb. x 33 lb. Contains additional deoxidizers providing a better wetting, giving a flatter bead shape Usually used with 75/25 (argon/C02) shielding gas or with higher contents of argon Can also be used with 100% C02 Conforms to AWS A5.18 ER70S-6