API 5CT 2 3/8" to 4 1/2" J55 L80 N80 Tubing Coupling

• Manufacturing Process: Forging
• Surface Treatment: Spray-Paint
• Operation Pressure: Atmospheric Pressure
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: API 5CT
• Material: Cast Steel
• Application: Oil and Gas Well Drilling
• Machine Type: Coupling
• Specification: ALL
• Trademark: XINHUAFA
• Origin: China Mainland
• HS Code: 84139100
• Production Capacity: 50000 Sets/Per Year

Product Description

Detailed Photos

Product Description

Xinhuafa  supplies all Tubing of the API standards.
In addition, we has also developed many kinds of tubing, casings of non-API standards, such as: Products for ultrahigh strength & deep well, Products for heavy oil thermal recovery well, Products for Sour service, Products for H2S corrosion resistant & anti-collapse, forming its own series to meet different requirements and offer more selections for the customers.

Product Parameters

API 5CT STC/LTC CASING COUPLING
Label 1	Casing OD	Coupling OD	Min. Length NL     mm		TPI	Weight  kg
			STC	LTC		STC	LTC
4-1/2	114.30	127.00	158.75	177.80	8	3.62	4.15
5	127.00	141.30	165.10	196.85	8	4.66	5.75
5-1/2	139.70	153.67	171.45	203.20	8	5.23	6.42
7	177.80	194.46	184.15	228.60	8	8.39	10.83
9-5/8	244.48	269.88	196.85	266.70	8	18.03	25.45
10-3/4	273.05	298.45	203.20	-	8	20.78	-
13-3/8	339.72	365.12	203.20	-	8	25.66	-
16	406.40	431.80	228.60	-	8	34.91	-
18-5/8	473.08	508.00	228.60	-	8	54.01	-
20	508.00	533.40	228.60	292.10	8	43.42	57.04

API 5CT BTC CASING COUPLING
Label 1	Casing OD D    mm	COUPLING OD W   mm		Min. Length NL   mm	TPI	Weight kg
4- 1/2	114.30	127.00		225.42	5	4.55
5	127.00	141.30		231.78	5	5.85
5- 1/2	139.70	153.67		234.95	5	6.35
7	177.80	194.46		254.00	5	10.54
9-5/8	244.48	269.88		269.88	5	23.16
10-3/4	273.05	298.45		269.88	5	25.74
13-3/8	339.72	365.12		269.88	5	31.77
16	406.40	431.80		269.88	5	40.28
18-5/8	473.08	508.00		269.88	5	62.68
20	508.00	533.40		269.88	5	50.10

Tubing Couplings

We carry size range of 2-3/8", 2-7/8″, 3-1/2″,4″ and 4-1/2″ in J55, K55, N80, P110 grade. All of our couplings meet the API Specifications 5CT/5B.
Couplings are short lengths of pipe used to connect 2 joints of tubing or casing. They come with painted colour codes on their external surface to indicate their grades.
API EUE Tubing Couplings
Designed in accordance with API 5CT/5B and are made of good seamless steel. EUE petroleum tubing coupling cover the outer diameter from 77.80mm to 141.30mm, that is bigger than the outer diameter of the non upset threaded end product. The API external-upset-end (EUE) tubing connection is widely used because it is a good, serviceable connection in most wells. The EUE joint has a designed joint strength in tension and pressure strength greater than that of the pipe body and, therefore, is considered a 100% joint efficient connection.

API NUE Tubing Couplings
Designed in accordance with API 5CT/5B and are made of good seamless steel. NUE tubing coupling possesses the outer diameter range from 73.02 to 132.08mm. API nonupset (NUE) tubing is used much less than EUE tubing. The cost of NUE is only slightly less than EUE, and the joint strength is substantially less. The coupling joint diameter of NUE is less than EUE, which offers some advantages when clearance is small.
1.Size: 2-3/8" 2-7/8″, 3-1/2", 4″, 4-1/2″
2.Standard: API 5CT /5B
3.Type: EUE  NUE
4.Grade:J55/K55/N80/L80/P110
5.Packaging: wooden pallet, tight wrapped /W paper carton


Raw Material Selection
Mechanical test including tensile strength
Impact test
Chemical properties control
Sulfide stress cracking test (for Material grades in C90 or T95)
Size tolerances, OD, Wall Thickness, Length and Straightness
Threads control, threads quantity per inch, threads angle etc (Premium threads option will be more rigorous)
Heat treatment
Additional markings
Material certification
Product Specification Level (PSL-2 or PSL-3)

 

Descriptions and size		Type of Thread	O.D*L(mm)	Weight(kg)
Tubing Coupling	2-3/8	NUE	73.02*107.95	1.28
	2-3/8	EUE	77.80*123.82	1.55
	2-7/8"	NUE	88.90*130.18	2.34
	2-7/8"	EUE	93.17*130.35	2.4
	3-1/2"	NUE	107.95*142.88	3.17
	3-1/2"	EUE	114.30*146.05	4.1
	4	NUE	120.65*146.05	4.35
	4"	EUE	127.00*152.40	4.82
	4-1/2"	NUE	132.08*155.58	4.89
	4-1/2"	EUE	141.30*158.75	6.05

 

Company Profile

Hebei Xinhuafa Petroleum Machinery Co, Ltd. is a specialized manufacturer that

focus on the manufacturing of oil drilling equipment and spare parts since 2006. Our main products are mud pump and accessories which can be interchangeable with many mud pump of oversea and domestic brand,including BOMCO F series, HHF series, NOV P series,LANSHI 3NB series, Oingzhou 3NB series and other mud pump. The products we supply are the cylinder liner, piston,valve(full open type and web type), piston rod, extension rod, cross head, bearing,v belt ,safety valve,manifold,sealing and other mud pump accessories.

The products all meet the requirements of IS09001, and API-7K (American Petroleum Association) standards.Since 2023,we expand our workshop which cover 20000 sqm,which can improve our production capacity and products stocks.

During the almost 20 years development,we have many advantages as below:
1.The company is located in Hengshui City which 2 hours by high speed train from Being.Very convenient if customers come to visit .
2.The factory is equipped with advanced machine, many technician with rich experience,strict quality control procedure make sure to supply best quality product.
3. Production capacity is 3000 units /month,and inventory enough can timely meet customer needs.
4. Perfect after-sales service and immediate response service at 24/7.

Principle: focus on service, and strive to achieve win-win for customers, employees and company.
Orientation: A professional One-stop supplier of oil and gas drilling equipment.  
Mission: To provide high quality products and services for the oil and energy industry.  
Values: Take responsibility and work hard,with seizing the day
Vision: To serve more than 80% of oil and gas drilling engineering customers within 5 years.

Certifications

Our Advantages

 

Packaging & Shipping

FAQ

1,Q. How long for your delivery time?
A. It will take about 15-35days to finish an order, but the exact time is according to actual situation.

2,Q. Can you offer OEM or design services? 
A. Yes, we have our own design department. We can make OEM products according your requirements. 

3,Q.How long is the warranty? 
A. 1 year