API 5CT Seamless Tubing Pipe OCTG

Our Products

Seamless construction that holds internal pressure along the whole length of the string
Thinner wall than casing, built to carry fluids rather than support the wellbore
L80 9Cr and 13Cr options for wells with H2S or CO2 in the produced fluid
Three connection styles, so the string can be matched to well depth and pressure
Every length hydrostatically tested, drifted, and inspected before dispatch
Custom lengths, coatings, and thread protection available

Parameter	Specification
Standard	API 5CT / ISO 11960
Grades	H40, J55, N80, L80, C90, T95, P110
Manufacturing Process	Seamless, hot rolled
Heat Treatment	Normalized, normalized and tempered, or quenched and tempered, per grade
Outside Diameter	1.050″ to 4 1/2″ (26.7 to 114.3 mm)
Wall Thickness	2.9 to 12.7 mm, per API 5CT weight table
Length	R1 (6.10 to 7.32 m), R2 (8.53 to 9.75 m), R3 (11.58 to 12.80 m)
End Connections	NU (non-upset), EU (external upset), IJ (integral joint)
Surface Finish	Black, varnished, painted, or galvanized
Testing	Hydrostatic, non-destructive examination, drift, tensile, hardness, and impact on request
Typical Use	Production tubing for oil and gas wells

Grade	Yield Strength (MPa)	Tensile Strength min (MPa)	Typical Service
H40	276 to 552	414	Shallow, low-pressure wells
J55	379 to 552	517	Standard sweet service wells
N80 (Type 1 and Q)	552 to 758	689	Medium depth wells
L80 (Type 1, 9Cr, 13Cr)	552 to 655	655	Sour and CO2 corrosive service
C90 / T95	621 to 758	689 / 724	High-strength sour service
P110	758 to 965	862	Deep, high-pressure wells