Durable API 5CT Petroleum Casing Connector

• Customization: Available
• Application: Oil and Gas Industry
• certification: CE, ISO9001
• Model NO.: coupling
• 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

 

All our products are produced and processed according to , with the materials of steel grade including J55, K55, N80, N80-1, N80-Q, L80, P110 and so on. The couplings have three types, namely STC LTC and BTC. By numerically controlled lathe and import molding cutter, the processing of thread can be finished in one time, which ensures its commonality and interchangeability. We have complete testing abilities, adopting a whole set of single testing apparatus of thread, including tape, pitch, tooth depth, profile and so on. Our products have already passed the identification of the Quality Testing and Inspection Centre of Oil Pipe of CNPC (China National Petroleum Corporation).

 

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 

 

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