Welcome to Shandong Jiugang Metal Products Co., Ltd.
WhatsApp ：+8618660158768 Email : sales13@jiugangsteelgroup.com
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PRODUCT CENTERWe mainly produce galvanized, PPGI, stainless steel, galvanized steel, carbon steel, etc., suitable for engineering, coal mine, textile, electric power, boiler, machinery and other fields.
Casing And Tubing Coupling
Classification ：
PRODUCT DETAILS
Keyword: Steel Plate
Description
About Tubing coupling
Normally tubing coupling OD maximum is 4 1/2”, as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most favorable in tubing connections. Tubing with EU end (EUE) coupling connection also called UPTBG. Because of the end of the tubing is thickened (upset), the connecting stress is better than buttress coupling.
Buttress coupling another type used for tubing connections, it has the same thickness of the pipe body, called NU end (NUE)tubing or TBG.
Features
The oil tubing coupling can solve the problem of fatigue fracture in the existing coupling due to stress concentration. Oil tubing end is connected to the inside wall of the coupling in a tapered thread. The coupling body end and oil tubing are connected with same thread pitch flat thread. The coupling is not easy to produce fatigue fracture, and has good connection effect. It can prevent the accident of oil well pipe string break effectively.
About Casing coupling
Casing coupling is for the dimensions more than 4 1/2 inch. Differently than tubing coupling is, casing coupling normally does not need to be thickened (Non-upset), which means no upset casing coupling, so it has following types:
• BTC: Buttress coupling
• LTC: Long buttress coupling
• STC: Short buttress coupling
All three types has same thickness of the casing pipe body, just have different lengths.
The oil casing coupling is a necessary piece used to connect the two casing. The coupling manufacturing method is the same as seamless pipe. The steel pipe ends with internal thread to connect with the upper and lower casing. In order to ensure the joint tightness, the precision of screw thread is strictly required.
Seamless and ERW Casing
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Specification |
API 5CT |
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Grades |
K55, N80, L80, C95, P110, Chrome, J55(Modified), J55 (API), PS80 |
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Special Grades |
For sour services and for deep well with high collapse properties |
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Dimensions |
OD 4" - 26" WT - 0.2 -0.5" |
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Length range |
1, 2 or 3 |
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Thread connections |
API (STC and LTC), BTC, extreme line, etc. |
Seamless and ERW Tubing
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Specification |
API 5CT |
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Grades |
J55 (API) J55(Modified), N80, L80, L80 13Cr, P110, Q125, H40 (API) |
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Thread connections |
API 5B - Last Edition or Premium, EUE, NUE, special seal, metal-to-metal seal and VAGT |
Specification
Casing Couplings Short Thread Specifications:
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Casing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
 |
4-1/2 |
5.000 |
6.250 |
8.05 |
343 |
Warehouse Storage
Shandong Jiugang Metal Products Co., Ltd. was founded in 2015, located in Jinan City, Shandong Province. It has a factory building of 20,000 square meters. Annual output 23,000 tons.We focus on the production and sales of Shandong steel, so we have a high supply capacity.
Packing and shipping
We mainly produce galvanized, PPGI, stainless steel, galvanized steel, carbon steel, etc., suitable for engineering, coal mine, textile, electric power, boiler, machinery and other fields.
Customer group photo
We focus on the production and sales of Shandong steel, so we have a high supply capacity. We are glad to receive your inquiry and will reply as soon as possible.
Application area
We adhere to the "quality first, service first, continuous improvement and innovation, customer satisfaction" business policy, with "zero defects, zero complaints" as the quality goal.
FAQ
Jiugang Metal Group arranges and deploys production plan for March
Jiugang Group’s production plan for March 2024
Q1: Are You Manufacture or Trade Company?
A1: We are the professional manufacturer of stainless/carbon/galvanized steel products located in China. Welcome to contact us and visit our factory before you place orders.
Q2: Can I get free samples?
A2: Of course you can. We can produce according to your samples or technical drawings. Contact us by whatsapp or email to get free samples and you will get the sample after 3-7 working days.
Q3: How do you guarantee the quality?
A3: We can send free samples to you, we can accept third-party testing. We also have test certificate, every batch goods will be testing before shipment, and the testing report will delivery to you with your goods.
Q4:How many coutries you already exported ?
A4: Exported to more than 50 countries mainly from Qatar, America, Russia, Belarus, Saudi Arabia, United Arab Emirates, Kuwait, Brazil, Egypt, Turkey, Jordan, India, etc.
Q5:How long is your delivery time?
A5:Within 5 days for stock size, 7-15 working days for customized size.
Q6: Can you OEM or ODM?
A6: Yes, we have a strong developing team. The products can be made according to your request
Q7: What is the MOQ?
A7: If you are scheduling to place a small quantity order or trial order, feel free to contact us, we can meet your requirements.
Q8:What are the certifications for your products?
A8:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
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Email : sales13@jiugangsteelgroup.com
Tel：+8618660158768
WhatsApp：+8618660158768
Add : 15-10, Building J1, Wanda Plaza, 57 Gongye South Road, Jinan District, China (Shandong) Pilot Free Trade Zone
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