Henan Dongfanglong Trade Co., Ltd.: Puyang, Henan, China; Main products: Machinery, Agricultural products, Other products, oil well products

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Home > Products > New Products > API Spec 5CT, API Spec 5B casing Coupling/Tubing Coupling of OCTG

API Spec 5CT, API Spec 5B casing Coupling/Tubing Coupling of OCTG

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USD $3.8 - $308.3 / Piece

10 Pieces(Min.Order)

Port Tianjin port Shanghai port
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Product Details

Material	Carbon Steel	Technics	Other, blanking-boring-rough turning-finish turning-phosphating-marking-paint
Type	Coupling	Place of Origin	Henan, China
Model Number	1.9"-20"	Brand Name	Eastlong
Connection	Other, Screw thread	Shape	Other, Tubular
Head Code	Other, Round

Product Description

Company Information

Henan Dongfanglong Machine Manufacture Co.,LTD was founded in 1999 and located at intersection of 106 National Highway and JIntian road,Puyang,Henan,Chian.We have over 15 years experience of producing,

developing and selling oil pipes and their accessories,steel pipe fittings and other down well tools.We can supply the related certifications for you as follow:

ISO 9001 Quality control certificate
API-5CT Certificate with the NO.5CT-0837
API-7 Certificate with the No.7-0872
API -5DP Certificate with the No.5DP-0135

The company has a fixed assets of over 570 million RMB,and is staffed with over 200 employees,almost hundred sets of accurate CNC lathes,auxiliary equipments and developed other machines and testing

equipments.Our own trademark has been registered and approved since february 2010.

Product Description

The main products of our factory is as follow: Tubing and casing couplings size from 1.9" to 20" with various

material and types,pup joints, all kinds of tool joints, and other down well tools that designed and developed

by our own such as:High efficient cyclone separator,tubing centralizer, Spiralflow sand setting device and so on.Now our production capability has reached 3000000 piece per year.

API Spec 5CT, API Spec 5B casing Coupling/Tubing Coupling of OCTG

API Coupling

Casing Coupling

Standard: API Spec 5CT, API Spec 5B

Grade: H40,J55,K55,N80-1,N80Q,L80,C95,T95,P110

Specification: OD127~365.12mm(4 1/2”~13 3/8”)

Thread: STC, LC, BC

Usage: has internal thread to join the casing pipes which are also with thread.

Tubing Coupling

Standard: API Spec 5CT, API Spec 5B

Grade: H40,J55,K55,N80-1,N80Q,L80,C90,T95,P110

Specification: OD55.88~141.3mm(1.9”~4 1/2”)

Thread: EU, NU, SCC(Special Clearance)

Usage: has internal thread to join the tubing pipes which are also with thread.

API non-upset tubing coupling Dimensions and masses

Tubing OD(in)	Coupling OD (in-mm)	Length (in-mm)	Weight per coupling/Kg	Package Quantity (piece)	Package Weight/Kg	Teeth number per25.4mm of thread (piece)
1.9	2.188-55.575	3.750-95.250	0.56	2900	1624	10
2 3/8	2.875-73.025	4.500-114.300	1.28	1512	1936	10
2 7/8	3.500-88.900	5.500-139.700	2.34	800	1872	10
3 1/2	4.250-107.950	5.625-142.875	3.71	502	1863	10
4	4.726-120.040	5.750-146.050	4.35	382	1662	10
4 1/2	5.200-132.080	6.500-165.100	4.89	252	1233	10

API external-upset tubing coupling Dimensions and masses

Tubing OD (in)	Coupling OD (in)	Length (in)	Weight per coupling/Kg	Package Quantity (piece)	Package Weight/Kg	Teeth number per25.4mm of thread (piece)
1.9	2.188	3.750	0.84	2800	2352	8
2 3/8	3.036	4.875	1.55	1444	2239	8
2 7/8	3.668	5.500	2.40	792	1901	8
3 1/2	4.500	5.750	4.10	448	1837	8
4	4.750	5.750	4.82	320	1543	8
4 1/2	5.563	6.500	6.05	252	1552	8

APIShort round thread casing couplings

Casing OD/in	Coupling OD/in- mm	Length/in-mm	Weight per coupling/Kg	Package Quantity Piece	Package Weight/Kg	Teeth nunmber per 25.4mm of thread(Piece)
4 1/2	5.000-127.00	6.250-158.75	3.62	343	1242	8
5	5.563-141.30	6.500-165.1	4.66	210	979	8
5 1/2	6.050-153.67	6.750-171.45	5.23	216	1130	8
6 5/8	7.390-187.71	7.250-184.15	9.12	115	1049	8
7	7.875-200.03	7.250-184.15	10.88	120	1007	8
7 5/8	8.500-215.90	7.500-190.5	12.30	80	984	8
8 5/8	9.625-244.48	7.750-196.85	16.23	60	974	8
9 5/8	10.625-269.88	7.750-196.85	18.03	50	902	8
10 3/4	11.750-298.45	8.000-203.2	20.78	45	935	8
11 3/4	12.750-323.85	8.000-203.2	22.64	35	793	8
13 3/8	14.375-365.12	8.000-203.2	25.66	25	642	8
16	17.000431.8	9.000-228.6	34.91	20	698	8
18 5/8	20.000-508.0	9.000-228.6	54.01	12	648	8
20	21.000-533.4	9.000-228.6	43.42	12	520	8

APILong round thread couplings

Casing OD(in)	Coupling OD (in- mm)	Length(in-mm)	Weight per coupling/Kg	Package Quantity Piece	Package Weight (Kg)	Teeth nunmber per 25.4mm of thread(Piece)
4 1/2	5.000-127.00	7.000-177.8	4.15	294	1220	8
5	5.563-141.30	7.750-196.85	5.75	210	1208	8
5 1/2	6.050-153.67	8.000-203.2	6.42	180	1156	8
6 5/8	7.390-187.71	8.750-222.25	11.34	100	1083	8
7	7.875-200.03	9.000-228.6	13.92	100	1134	8
7 5/8	8.500-215.90	9.250-234.95	15.63	50	1250	8
8 5/8	9.625-244.48	10.000-254.0	21.67	48	1040	8
9 5/8	10.625-269.88	10.500-266.7	25.45	40	1018	8

Grade colour code

Grade	J55	K55	N80-1	N80-Q	L80-1	P110
colour	bright green	bright green	red	red with green band	red with brown band	white

Tensile requirement

Grade	J55	K55	N80-1	N80-Q	L80-1	P110
Yield strength(Mpa)	379-552	379-552	552-758	552-758	552-655	758-965
Tensile strength(Mpa)	517	655	689	689	655	862

Manufacturing proces

Contact Us

Henan Dongfanglong Trade Co., Ltd.: Contact nameLiwei Zhao
Chat Now; Phone86-393-5399123; AddressAt the Intersection of Jintian Road and 106 National Highway, Puyang, Henan