Flux Cored Welding Wire Process Flux-Cored Welding (FCAW) Material Carbon Steel Wire Diameter 0.0625 in Tensile Strength (As Welded) 82 to 87 ksi (100 Percent Carbon Dioxide) 89 to 95 ksi (75 Percent Argon/25 Percent Carbon Dioxide) Yield Strength (Minimum Required) 58 ksi Yield Strength (As Welded) 73 to 79 ksi (100 Percent Carbon Dioxide) 82 to 88 ksi (75 Percent Argon/25 Percent Carbon Dioxide) Spool Type Fiber Spool Series UltraCore 71A75 Dual Weight 33 lb