K4480 TIG Welding Rod AWS Classification ER90S-B3 Material Low-Alloy Steel Process TIG Welding (GTAW) Overall Diameter 0.0938 in Overall Length 36 in Tensile Strength (As Welded) 90 ksi Yield Strength (Minimum Required) 78 ksi Yield Strength (As Welded) 78 ksi Series Tigrod ER90S-B3 Weight 1 lb For Material Type Low-Alloy Steel to Low-Alloy Steel For Material Grade ASTM A182 ASTM A217 ASTM A234 Welding Current Designation DCEN