K4628 Flux Cored Welding Wire Process Flux-Cored Welding (FCAW) Material Low-Alloy Steel Wire Diameter 0.0625 in Tensile Strength (As Welded) 86 to 91 ksi (100 Percent Carbon Dioxide) Yield Strength (Minimum Required) 68 ksi Yield Strength (As Welded) 78 to 84 ksi (100 Percent Carbon Dioxide) Spool Type Fiber Spool Series UltraCore 81Ni1C-H Weight 50 lb For Material Type Low-Alloy Steel to Low-Alloy Steel Wire Type Flux-Cored Shielding Type Gas-Shielded