Import 2-7/8" Nue Tubing Coupling Api 5ct — Buy in wholesale FOB from Supplier in China
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This 2-7/8 inch NUE tubing coupling from Dongying Lake Petroleum Technology Co., Ltd is a threaded connector used to join two lengths of non-upset-end (NUE) tubing in oil and gas well strings. It is manufactured from J55 or K55 grade carbon steel, both of which are API 5CT certified grades suitable for standard wellbore conditions. The coupling features internal NUE threads on both ends, designed to accept the external (pin) threads of two tubing sections, creating a continuous, pressure-tight conduit from the wellhead downhole.
J55 and K55 are common API 5CT grades with similar mechanical properties, often used interchangeably for general service tubing. K55 has a slightly higher minimum tensile strength. The NUE thread form, governed by API 5B, uses a trapezoidal thread profile that provides a robust mechanical seal when properly assembled with a thread compound. Couplings are critical components, as they must maintain seal integrity under the combined loads of pressure, tension, and bending encountered in a wellbore. Dongying Lake Petroleum Technology is based in Dongying, Shandong Province, a major hub for China's oilfield equipment manufacturing industry.
Procurement managers at drilling companies, oilfield service firms, and OCTG distributors are the typical buyers for these couplings. They are sourced as consumable accessories alongside tubing strings for new well completions and workovers. Buyers should specify the required steel grade (J55 or K55), confirm the coupling's dimensions against API 5B tables, and request material test reports. Lead times and minimum order quantities are not listed and should be negotiated directly with the supplier, as these can vary based on stock levels and production schedules.
| Product Type | Tubing Coupling, NUE (Non-Upset End) |
| Nominal Size | 2-7/8 inch (73.0 mm) |
| Steel Grade Options | J55 or K55 (API 5CT) |
| Thread Type | NUE (API 5B) |
| Typical Coupling OD | 3.063 inch (77.8 mm) - standard for 2-7/8" NUE |
| Typical Coupling Length | 4.25 inch (108 mm) - standard for 2-7/8" NUE |
| Minimum Yield Strength (J55) | 55,000 psi (379 MPa) |
| Minimum Yield Strength (K55) | 55,000 psi (379 MPa) |
| Applicable Standards | API 5CT, API 5B |
| Primary Application | Joining NUE tubing strings in oil and gas wells |
Dongying Lake Petroleum Technology Co., Ltd is located on Huanghe Road, Dongying City, Shandong Province, China (postal code 257000). Dongying is the headquarters of China's Shengli Oilfield and a major industrial base for petroleum equipment manufacturing. The supplier's profile is categorized as an 'imported' tier on this platform.
The listing states the product is API 5CT compliant, which is a fundamental requirement for OCTG products. However, the supplier's response rate and average response hours are shown as zero, indicating no recorded platform engagement to date. Buyers should initiate direct communication to assess responsiveness and request verifiable proof of their manufacturing capabilities, such as API certification documents and factory audit reports.
The 2-7/8 inch NUE tubing coupling is a premium API 5CT-certified threaded connector used to join non-upset-end tubing strings in oil and gas well applications. Manufactured from J55 or K55 steel grade, it provides a leak-resistant, high-strength threaded connection for wellhead-to-surface and intermediate tubing runs. Widely sourced by importers and exporters in the OCTG supply chain, this coupling is essential for drilling contractors, well service companies, and oil producers requiring API-compliant tubular connections.
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Sourcing 2-7/8" NUE Tubing Coupling API 5CT from Dongying Lake Petroleum Technology Co., Ltd - China Import Guide
Before placing an order with Dongying Lake Petroleum Technology, verify the supplier's manufacturing credentials. Request their current API 5CT license number and confirm it is active and covers the production of couplings. Ask for references from other export clients, particularly those in your region, to gauge their reliability and export experience.
Clarify all trade and logistics terms in writing. Confirm the Incoterms (e.g., FOB Qingdao or CIF your port), the exact packaging method (typically wooden boxes or pallets), and the required shipping documents. For OCTG products, a pre-shipment inspection by a recognized third party is a standard risk-mitigation practice. Agree on the inspection criteria and who bears the cost.
Upon delivery, conduct a thorough incoming inspection. This should include a visual check for handling damage, verification of quantities against the packing list, and, if feasible, dimensional and thread checks on a sample basis using proper gauges. Ensure all promised documentation (MTC, certificates) is received and filed. Any non-conformance should be documented with photos and reported to the supplier within the agreed timeframe for resolution.
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30 suppliersBuy 2-7/8" Nue Tubing Couplin in Bulk — Verified Supplier in China
When sourcing 2-7/8" Nue Tubing Coupling Api 5ct for your business, securing the right balance of quality and cost is essential. Dongying Lake Petroleum Technology Co., Ltd, a verified supplier based in China, offers this product with key specifications including NUE (Non-Upset) Tubing Coupling, API 5CT, and 2-7/8 inch (73.0 mm OD). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $35/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7307.29, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
2-7/8" Nue Tubing Couplin Specifications, Trade Terms & Pricing
Importing 2-7/8" Nue Tubing Couplin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongying Lake Petroleum Technology Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7307.29 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Dongying Lake Petroleum Technology Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 2-7/8" Nue Tubing Couplin has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Steel Pipes category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import 2-7/8" Nue Tubing Couplin — Shipping, Logistics & Customs
Importing 2-7/8" Nue Tubing Couplin requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7307.29 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 2-7/8" Nue Tubing Couplin
What is the wholesale price of 2-7/8" Nue Tubing Coupling Api 5ct?
The current listed wholesale price for 2-7/8" Nue Tubing Coupling Api 5ct from Dongying Lake Petroleum Technology Co., Ltd is $35/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Dongying Lake Petroleum Technology Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for 2-7/8" Nue Tubing Couplin?
The supplier, Dongying Lake Petroleum Technology Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for 2-7/8" Nue Tubing Couplin. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 2-7/8" Nue Tubing Coupling Api 5ct?
For international shipping and customs clearance, 2-7/8" Nue Tubing Coupling Api 5ct is classified under HS Code 7307.29. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import 2-7/8" Nue Tubing Couplin from China?
To import 2-7/8" Nue Tubing Couplin from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongying Lake Petroleum Technology Co., Ltd. Ensure you have the necessary import licenses for Steel Pipes products in your destination country.
Is Dongying Lake Petroleum Technology Co., Ltd a verified supplier?
Yes, Dongying Lake Petroleum Technology Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 2-7/8" Nue Tubing Coupling Api 5ct?
The key specifications for 2-7/8" Nue Tubing Coupling Api 5ct supplied by Dongying Lake Petroleum Technology Co., Ltd include NUE (Non-Upset) Tubing Coupling, API 5CT, and 2-7/8 inch (73.0 mm OD). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of 2-7/8" Nue Tubing Couplin?
Dongying Lake Petroleum Technology Co., Ltd offers 2-7/8" Nue Tubing Couplin with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 2-7/8" Nue Tubing Couplin the most?
2-7/8" Nue Tubing Couplin is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongying Lake Petroleum Technology Co., Ltd through our platform.
What certifications does this 2-7/8" Nue Tubing Couplin supplier hold?
Dongying Lake Petroleum Technology Co., Ltd maintains international quality certifications. These ensure that the 2-7/8" Nue Tubing Couplin meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 2-7/8" Nue Tubing Coupling Api 5ct on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongying Lake Petroleum Technology Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Dongying Lake Petroleum Technology Co., Ltd.
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