API 5CT Oil Casing Pipe, Materials: H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P-110,Q-125,Type of End-finish: Plain, BTC, LTC,STC API 5CT Oil Casting PipeGrades: H-40,J-55,K-55,N-80,C-75,L-80,C-90,C-95,P-110,Q-125 OD: from 4 1/2" - 20" (114.3-508mm) Wall Thickness: 0.205" - 0.635" (5.21 - 16.13mm)Length: R1, R2, R3 Type of End-Finish: Plain, STC, LTC, BTC.