Steel Grade: H-40, J55, K-55, N-80, C-75, L-80, C-90, T-95, Q-125 Process: ERW and Seamless Outer Diameter: Casing: OD 4 1/2"- 20" (114.3mm-508mm) Tubing: OD 2 3/8" - 4 1/2" (60.3mm-114.30mm) Wall Thickness: 0. 205"- 0.635" Length: R1(4.88mtr-7.62mtr), R2(7.62mtr-10.36mtr), R3(10.36mtr or longer) Connection: Casing: LTC, STC, BTC, . Tubing: NUE, EUE. End: Beveled, Square cut. And pipe protection cap specially for casing and tubing. Surface: Corrosion proofing water based paint Heat treatment: Normalized, Quencher+Temper Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Impact Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector), Hydrostatic Test.