Premium OCTG Casing Pipe with API Thread Suitable for Oilfield Drilling

• Customization: Available
• Application: Oil and Gas Industry
• certification: CE, ISO9001
• Model NO.: tubing and casing
• Length: Custom Length
• Outer Diameter: 8 inch
• Surface Finish: 3LPE Coating
• Wall Thickness: Schedule 40
• Sizes Range: From 2-3/8" to 20", Lengths Include R1, R2, R3
• Connection Type: e.g. Btc (Buttress Thread), Ltc (Long Thread), Stc
• Standards: API 5CT / ISO 11960
• End Type: Plain End, Threaded and Coupled, Beveled End
• Tensile Strength: up to 965 MPa (Varies by Grade)
• Yield Strength: J55 ≥ 379 MPa, N80 ≥ 552 MPa
• Corrosion Resistance: Available for Sour Service (H2s, CO2 Environments)
• Heat Treatment: Normalized, Quenching & Tempering, etc.
• Coupling: Supplied with Matching Couplings and Thread Protec
• Transport Package: Bundled with Steel Strips, Wooden Cases, or Custom
• Specification: Grades J55, K55, N80, L80, P110, etc.
• Trademark: ROSENWELL
• Origin: Shandong
• Production Capacity: 500000ton/Year

Product Description

 

Casing and tubing for Sour Oil and Gas Service must have a good anti-SSCC (sulfide stresscorrosion and cracking)
performance in the environment where hydrogen sulfide corrosion exists.After an indepth study, we has successfully
developed tubular goods of the Cr-Mo series for this purpose with good hardenability and tempering stability that when
tempering takes places at certain temperatures uniform and fine sorbite structures can be obtained. Their mechanical
properties can meet fully the requirements of corresponding grades and their anti-SSC performance is excellent by
regulating the chemical composition and adopting different heat treatment  procedures.

 

Item/Type	Casing coupling	Tubing coupling
Specification	4-1/2", 5", 5-1/2", 6-5/8", 7", 7-5/8", 8-5/8", 9-5/8", 10-3/4", 11-3/4", 13-3/8", 16", 18-5/8", 20"	1.9", 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2"
Steel grade	J55, K55, L80, N80, P110	J55, L80, N80
Thread type	STC, LTC, BTC	EUE, NUE

 

Name:5-1/2 Casing coupling STC LTC THREAD CASING COLLAR FOR PIPE ADAPTER

1.Grade:J55, K55, N80-1, N80-Q, L80, C90, P110

2.We also supply permium thread products by customer's request

3.Size: tubing coupling from 1.9" to 4-1/2",

4.Type: NU, EU, NUE, EUE, TBG, UPTBG, non-upset, external-upset(tubing coupling)

5.Surface treatment: Whole phosphating, or inside phosphating and outside coating

6.Packing: By carton, wooden case, wooden pallet, or by  requirements of customers 

 

Standard		API 5CT/ ISO11960
Grade	Group.1	H40/PSL.1, J55/PSL.1, J55/PSL.2, J55/PSL.3, K55/PSL.1, K55/PSL.2, K55/PSL.3,
		N80(1)/PSL.1, N80(1)/PSL.2, N80(Q)/PSL.1, N80(Q)/PSL.2, N80(Q)/PSL.3
	Group.2	M65/PSL.1, M65/PSL.3, L80/PSL.2, L80(1)/PSL.1, L80(1)/PSL.3, L80(9Cr)/PSL.1, L80(13Cr)/PSL.1, C90/PSL.1, C90/PSL.2, C90/PSL.3, T95/PSL.1, T95/PSL.2T95/PSL.3
	Group.3	P110/PSL.1, P110/PSL.2, P110/PSL.3,
	Group.4	Q125/PSL.1, Q125/PSL.2, Q125/PSL.3,
Minimum Order Quantity		20 Ton
Outside Diameter Ranges	Tubing	1.05 inch to 4 1/2 inch or 48.26mm to 114.3mm
	Casing	4 1/2 inch to 30inch or 114.3mm to 762mm
Wall Thickness		According to API 5CT Standard
Length	Tubing	R1 (6.10m to 7.32m), R2 (8.53m to 9.75m), R3 (11.58m to 12.80m)
	Casing	R1 (4.88m to 7.62m), R2 (7.62m to 10.36m), R3 (10.36m to 14.63m)
Type		Seamless
Type of End-Finish	Tubing	P, I, N, U
	Casing	P, S, B, L

Grade	Type	Total elongation under load(%)	Yield strength(min)	Yield strength (max)	Tensile strength min Mpa	Hardness Max(HRC)	Hardness Max(HBW)
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	-	-
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		0.5	621	724	689	25.4	255
C95		0.5	655	758	724
T95		0.5	655	758	724	25.4	255
P110		0.6	758	965	862
Q125	AlI	0.65	862	1034	931

Size			Grade and Connection
OD mm	PPF	WT   mm	H40	J55	M65	L80-1	N80-1	C90	C110	P110	Q125
				K55		R95	N80Q	T95
114.3 (4-1/2")	9.5	5.21	S	S	S
	10.5	5.69		S/B	S/B
	11.6	6.35		S/L/B	V/B	L/B	L/B	L/B		L/B
	13.5	7.37			V/B	L/B	L/B	L/B		L/B
	15.1	8.56								L/B	L/B
127 (5")	11.5	5.59		S	S
	13	6.43		S/L/B	S/L/B
	15	7.52		S/L/B	L/B	L/B	L/B	L/B		L/B
	18	9.19			V/B	L/B	L/B	L/B		/L/B	L/B
	21.4	11.1			/B	L/B	L/B	/B		L/B	L/B
	23.2	12.14				L/B	L/B	L/B		L/B	L/B
	24.1	12.7				L/B	L/B	V/B		L/B	L/B
139.7 (5-1/2")	14	6.2	S	S	S
	15.5	6.98		s/L/B	s/L/B
	17	7.72		s/L/B	L/B	L/B	L/B	L/B		L/B
	20	9.17			V/B	L/B	L/B	L/B		L/B
	23	10.54			L/B	L/B	L/B	L/B		L/B	L/B
168.28 (6-5/8")	20	7.32	S	S/L/B	S/L/B
	24	8.94		S/L/B	L/B	L/B	L/B	L/B		L/B
	28	10.59			L/B	L/B	L/B	L/B		L/B
	32	12.06				L/B	L/B	L/B		L/B	L/B
177.8 (7")	20	6.91	S	S	S
	23	8.05		s/L/B	L/B	L/B	L/B	L/B
	26	9.19		S/L/B	L/B	L/B	L/B	/B		L/B
	29	10.36			V/B	L/B	L/B	/B		L/B
	32	11.51			V/B	L/B	L/B	L/B		L/B
	35	12.65				L/B	/B	L/B		L/B	L/B
	38	13.72				L/B	L/B	L/B		L/B	L/B
193.68 (7-5/8")	26.4	8.33		S/L/B	S/L/B	L/B	L/B	L/B
	29.7	9.52			L/B	L/B	L/B	L/B		L/B
	33.7	10.92			L/B	L/B	L/B	L/B		L/B
	39	12.7				L/B	L/B	L/B		L/B	L/B
	42.8	14.27				L/B	L/B	L/B		L/B	L/B
	45.3	15.11				L/B	L/B	L/B		L/B	L/B
	47.1	15.88				L/B	L/B	L/B		L/B	L/B
219.08 (8-8/5")	24	6.71		S	S
	28	7.72	S		S
	32	8.94	S	S/L/B	S/L/B
	36	10.16		S/L/B	S/L/B	L/B	L/B	L/B
	40	11.43			L/B	L/B	L/B	L/B		L/B
	44	12.7				L/B	L/B	L/B		L/B
	49	14.15				L/B	L/B	L/B		L/B	L/B
244.48 (9-8/5")	36	8.94	S	S/L/B	S/L/B
	40	10.03		S/L/B	S/L/B	L/B	L/B	L/B
	43.5	11.05			L/B	L/B	L/B	L/B		L/B
	47	11.99			L/B	L/B	L/B	L/B		L/B	L/B
	53.5	13.84				L/B	L/B	L/B		L/B	L/B
	58.4	15.11				L/B	L/B	L/B		L/B	L/B

Characteristics:
1. Materials: The chemical compositions have been carefully determined to provide resistance to sulfide stress corrosion
as well as to insure complete through wall hardening.

2.Heat Treatment: Quenching and Tempering are conducted under rigid temperature control to assure homogeneous
physical properties and microstructures.

3.Micro Structure: These grades exhibit fully tempered martensite which is considered to be the most desirable for
resistance to sulfide stress corrosion cracking.

4. Tensile Properties and Hardness: Yield Strength is limited within a narrow range and hardness is controlled to within
the predetermined maximum limit.

5. Sulfide Stress Cracking (SSC) Performance: Whole grades are designed for 85% or 90% SMYS in NACE condition.
Excellent SSC resistance has been achieved through rigorous, chemical composition, heat treatment, microstructure,
tensile properties, hardness and so on.

Pipe inspection:
A full length non destructive inspection is performed in accordance with API 5CT for external and internal, longitudinal
and transverse defects with a standard notch depth equal to 5% of the specified wall thickness.