TIG Welding Rods AWS Classification ER312 Material Stainless Steel Process TIG Welding (GTAW) Overall Diameter 0.125 in Overall Length 36 in Yield Strength (Minimum Required) 78 ksi Series Lincoln ER312 Weight 30 lb For Material Type Stainless Steel to Stainless Steel For Material Grade 312 329 416 416PlusX 416Se 420F Welding Current Designation DCEN For Welding Position Flat Horizontal Overhead Vertical-Down Vertical-Up Tensile Strength (Minimum Required) 109 ksi