API 5CT T95 CASING

Product Introduction

API 5CT T95 CASING TUBING SPECIFICATIONS
OD	4-1/2“ to 20“/ 114.3mm to 508mm
Wall Thickness	5.21 mm - 16.13 mm
Thread	STC, BTC, LTC
Length	R1(4.88-7.62M), R2(7.62-10.36M), R3(10.36-14.63Meters)
Standard	API 5CT
Grade	J55, K55, M65, N80, N80-1, N80-Q, L80-13Cr, L80-1, L80-9Cr, C90, C95, T95, P110, Q125
Length Range	R1 (6.10-7.32m), R2 (8.53-9.75m), R3 (11.58-12.80m)
Model in Common Use	2-3/8", 2-7/8", 3-1/2", 4", 4-1/2"
Specialties	Drifting (Full-length, or just ends) Threading Heat treating External upset Hydrostatic Testing Couplings – EUE, AB Modified, turned down, special clearance couplings Coating to customer specifications Full third-party inspection capabilities (EMI, SEA, and Weld Line) Pup Joints

Inspection

Physical properties are checked and each length hydrostatically tested, normally to only 3,000 psi in the plain end (unthreaded) condition. The following are also checked:

Straightness
Dimensions
Weights
Lengths

Part of this inspection is to drift all lengths.
Despite all the American Petroleum Institute (API) specifications and testing, some tubing defects are still found after delivery; thus, some operators do further inspection.

Inspection Method

Size and surface inspection
NDT and pressure test and third party certication
Electromagnetic
Magnetic particle
Physical and chemical analysis
Hydrostatic
Drifting test
Hardness and pressure test.
Ultrasonic

Technical data

T95 Casing Tubing Dimensions

Pipe Casing Sizes, Oilfield Casing Sizes & Casing Drift Sizes
Outer Diameter (Casing Pipe Sizes)	4 1/2"-20", (114.3-508mm)
Standard Casing Sizes	4 1/2"-20", (114.3-508mm)
Thread Type	Buttress thread casing, Long round thread casing, Short round thread casing
Function	It can protect the tubing pipe.

Oil Tube For Petroleum And Natural Gas Industries

Name of Pipes	Specification			Steel Grade	Standard
	D	(S)	(L)
	(mm)	(mm)	(m)
Petroleum Casing Pipe	127-508	5.21-16.66	6-12	J55. M55. K55. L80. N80. P110.	API Spec 5CT (8)
Petroleum Tubing	26.7-114.3	2.87-16.00	6-12	J55. M55. K55. L80. N80. P110.	API Spec 5CT (8)
Coupling	127-533.4	12.5-15	6-12	J55. M55. K55. L80. N80. P110.	API Spec 5CT (8)

API 5CT Gr. T95 Tubing Chemical Composition

	C	Mn	Mo	Cr	Ni	Cu	Ti	P	S	Si	V	Al
Min	-	-	0.250	0.400	-	-	-	-	-	-	-	-
Max	0.350	1.200	0.850	1.500	0.990	-	-	0.020	0.010	-	-	-

API 5CT T95 Tubing Mechanical Properties

Tensile Strength	724 MPa min	105,000 psi min
Yield Strength	655 MPa min	758 MPa max
	95,000 psi min	110,000 psi max
Total Elongation Under Load	0.500 %	-
Hardness	25 Max HRC	255 Max HBW

API 5CT T95 Casing Tubing Tensile & Hardness Requirement

Group	Grade	Type	Total elongation under load %	Yield strength MPa		Tensile strength min. MPa	Hardness a max.		Specified wall thickness mm	Allowable hardness variation b HRC
Group	Grade	Type	Total elongation under load %	min.	max .		HRC	HBW	Specified wall thickness mm	Allowable hardness variation b HRC
1	2	3	4	5	6	7	8	9	10	11
1	H40	-	0.5	276	552	414	-	-	-	-
	J55	-	0.5	379	552	517	-	-	-	-
	K55	-	0.5	379	552	655	-	-	-	-
	N80	1	0.5	552	758	689	-	-	-	-
	N80	Q	0.5	552	758	689	-	-	-	-
	R95	-	0.5	655	758	724	-	-	-	-
2	M65	-	0.5	448	586	586	22	235	-	-
	L80	1	0.5	552	655	655	23	241	-	-
	L80	9Cr	0.5	552	655	655	23	241	-	-
	L80	13Cr	0.5	552	655	655	23	241	-	-
	C90	1	0.5	621	724	689	25.4	255	≤ 12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.40	3.0 4.0 5.0 6.0
	T95	1	0.5	655	758	724	25.4	255	≤ 12.70 12.71 to 19.04 19.05 to 25.39 ≥ 25.40	3.0 4.0 5.0 6.0
	C110	-	0.7	758	828	793	30	286	≤ 12.70 12.71 to 19.04 19.05 to 25.39. ≥ 25.40	3.0 4.0 5.0 6.0
3	P110	-	0.6	758	965	862	-	-	-	-
4	Q125	1	0.65	862	1034	931	b	-	≤ 12.70 12.71 to 19.04 ≥ 19.05	3.0 4.0 5.0
a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method. b No hardness limits are specified, but the maximum variation is restricted in accordance with 7.8 and 7.9 of API Spec. 5CT.

API 5CT T95 Casing Tubing Features

API 5CT T95 Casing Tubing is offered with a free length range from 8 to 13m on basis of the SY/T6194-96 norm. However, it is also available no less than 6m length and its quantity should be no more than 20%.
Deformations which mentioned above are not allowed to appear on the outer surface of API 5CT T95 Casing Tubing coupling.
The surface of thread of coupling and API 5CT T95 Casing Tubing should be smooth without any burr, tear or other defects that may have a negative impact on the strength and close connection.
Any deformation such as crease, hairline, separation, crack or scab is not acceptable on both inner and outer surfaces of the product. All these defects should be completely removed, and the removed depth must not exceed 12.5% of nominal wall thickness.