Flux Cored Welding Wire Process Flux-Cored Welding (FCAW) Material Stainless Steel Wire Diameter 0.045 in Tensile Strength (As Welded) 82 ksi (100 Percent Carbon Dioxide) 86 ksi (75 Percent Argon/25 Percent Carbon Dioxide) Yield Strength (As Welded) 63 ksi (100 Percent Carbon Dioxide) 65 ksi (75 Percent Argon/25 Percent Carbon Dioxide) Spool Type Plastic Spool Series UltraCore 309L Weight 33 lb