Flux Cored Welding Wire Process Flux-Cored Welding (FCAW) Material Carbon Steel Wire Diameter 0.045 in Tensile Strength (As Welded) 87 to 94 ksi (75 Percent to 85 Percent Argon/balance Carbon Dioxide) Yield Strength (Minimum Required) 58 ksi Yield Strength (As Welded) 80 to 88 ksi (75 Percent to 85 Percent Argon/balance Carbon Dioxide) Spool Type Fiber Spool Series UltraCore 71A85 Weight 50 lb For Material Type Carbon Steel to Carbon Steel Wire Type Flux-Cored