API 5CT SPEC J55油套管和油管,无缝钢管1)尺寸(O.D. X W.T):从2 3/8“-4 1/2”X 0.167“-0.63”2)标准:API 5CT SPEC。3.)Steel Grade: J55, K55, N80,L80-1,P110 4)Surface: Varnish or black painted to prevent rust 5)Marking: as per customer’s requirement API 5CT GRADE: J55/K55/N80-1/N80-Q/L80/P110/P110 HC Outside diameter(mm) Wall thickness(mm) Φ114.3 5.69 6.35 7.37 8.56 Φ127 7.52 9.19 11.1 12.14 12.7 Φ139.7 6.98 7.72 9.17 10.54 12.7 14.27 15.87 Φ168.28 7.32 8.94 10.59 12.06 Φ177.8 8.05 9.19 10.36 11.51 12.65 13.72 Φ219 Above 8 Φ244.5 Above 8 Φ273 Above 8 B. Tubing and Coupling API 5CT GRADE: J55/K55/N80-1/N80-Q/L80/P110/P110 […]