Out Diameter Casing:4 1/2" ~ 20" (114.3 mm ~ 508mm), Tubing: 2-3/8" ~ 4-1/2" (60.32mm ~ 114.3mm) Wall Thickness as per API 5CT standard ( the latest edition ) Length R1, R2, R3 Steel Grade H40/J 55/K55/N80/ C75/L80/C90/ T95/ P110/Q125 Pipe Type Seamless (SMLS) Threads or Connection Casing:LTC/STC/BTC/ Left Hand connection or other premium threads like: VAM Tubing:EUE, NUE Surface Treatment Anti-corrosion Water Based Paint Packing Protection Caps on both ends and in bundles with steel strips and two tags as per export requirements Application Used as the architectural retainer for the walls of oil, gas wells
