Import Tubing & Casing Coupling — Buy in wholesale FOB from Supplier in China
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Tubing & Casing Coupling
The Tubing & Casing Coupling supplied by Dongying Lake Petroleum Technology co.,ltd is an API 5CT‑grade connector designed to join short lengths of seamless steel pipe in drilling and completion operations. It is manufactured from carbon steel or alloy steel in the grades J55, N80 or P110, and features threaded connections that provide leak‑proof joints under high pressure. The coupling conforms to API 5CT requirements for tensile strength and pressure rating, making it suitable for oil, gas and geothermal wells.
The product is offered in the standard material grades J55, N80 and P110, each delivering the strength class required for the corresponding well depth. Typical nominal pipe sizes covered are 2" to 4" OD with API 5CT threads, and a typical maximum working pressure of up to 10,000 psi for the P110 grade. A typical corrosion‑resistant coating is applied to extend service life in aggressive environments, and the couplings are commonly supplied in bundled export packaging. These industry‑standard characteristics align with the specifications normally required by drilling contractors and EPC firms.
End users such as drilling contractors, oilfield service companies and geothermal project developers purchase this coupling for reliable pipe‑to‑pipe connections. The supplier ships the units in bundled packaging and can arrange common trade terms such as CIF or FOB, but the exact incoterm and payment method must be confirmed with the supplier. No minimum order quantity is stated in the listing, so buyers should request the MOQ directly. Inspection reports and API certificates are typically provided on request to satisfy quality assurance requirements.
| Material | Carbon Steel / Alloy Steel (Grade J55, N80, P110) |
| API Standard | API 5CT |
| Thread Type | API 5CT threaded connection |
| Nominal Size (OD) | 2" - 4" typical |
| Maximum Working Pressure | Up to 10,000 psi typical for P110 grade |
| Corrosion Protection | Typical corrosion‑resistant coating |
| Packaging | Bundled export packaging |
| Typical Weight per Unit | 5 - 15 kg typical |
| Typical Temperature Range | -30 °C to +120 °C typical |
| Compliance Certifications | International certifications cited, confirm specific certificates with supplier |
Dongying Lake Petroleum Technology co.,ltd is listed with a harbor‑tier verification and is located on the 15th floor of Huatai Center in Dongying City, Shandong province, China (postal code 257000). The supplier’s public profile shows a response rate of 0 % and no recorded average response time, indicating that communication may need proactive follow‑up.
The company specialises in petroleum‑related hardware such as tubing and casing couplings and advertises compliance with API, ISO and CE standards, although specific certificates must be requested from the supplier. Apart from the address and verification tier, the listing does not disclose production capacity, lead times or pricing, so interested buyers should obtain these details directly.
This API 5CT-grade tubing and casing coupling is designed for connecting short lengths of seamless steel pipe in oil and gas well drilling and completion operations. Manufactured from high-strength carbon or alloy steel such as J55, N80, or P110, it features threaded connections that ensure leak-proof joints under high pressure. Widely used in petroleum, natural gas, and geothermal drilling projects, it is exported in bundled packaging with international certifications for global energy sector procurement.
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Sourcing Tubing & Casing Coupling from Dongying Lake Petroleum Technology co.,ltd - China Import Guide
Before placing an order, verify that the material grade, API 5CT compliance and any corrosion‑resistant coating match your project specifications. Request the supplier’s latest material test reports and, if required, a third‑party inspection certificate to confirm conformity.
Logistics for shipments from Dongying typically involve sea freight from the nearest port in Shandong province. Confirm the expected lead time, chosen Incoterm (such as CIF, FOB or EXW) and preferred payment method, which is often a letter of credit but must be agreed with the supplier. Clarify whether the supplier can arrange consolidation for larger volumes.
Arrange a pre‑shipment inspection that includes dimensional verification, thread gauge checks and a pressure test at the rated working pressure. Ensure the supplier provides a mill test report, API certificate and packing list. Keeping these documents on file will streamline customs clearance and quality acceptance at the destination.
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30 suppliersBuy Tubing & Casing Coupling in Bulk — Verified Supplier in China
When sourcing Tubing & Casing Coupling 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 API 5CT J55, K55, L80, N80, P110 (OCTG Coupling), Carbon Steel with alloying elements (Mn, Cr, Mo, Ni), and 2-3/8" to 13-3/8" OD; compatible with standard tubing and casing sizes. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $150/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7307.19, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Tubing & Casing Coupling Specifications, Trade Terms & Pricing
Importing Tubing & Casing Coupling 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 7307.19 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 Tubing & Casing Coupling 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 Tubing & Casing Coupling — Shipping, Logistics & Customs
Importing Tubing & Casing Coupling 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 7307.19 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 Tubing & Casing Coupling
What is the wholesale price of Tubing & Casing Coupling?
The current listed wholesale price for Tubing & Casing Coupling from Dongying Lake Petroleum Technology co.,ltd is $150/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 Tubing & Casing Coupling?
The supplier, Dongying Lake Petroleum Technology co.,ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Tubing & Casing Coupling. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Tubing & Casing Coupling?
For international shipping and customs clearance, Tubing & Casing Coupling is classified under HS Code 7307.19. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Tubing & Casing Coupling from China?
To import Tubing & Casing Coupling 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 Tubing & Casing Coupling?
The key specifications for Tubing & Casing Coupling supplied by Dongying Lake Petroleum Technology co.,ltd include API 5CT J55, K55, L80, N80, P110 (OCTG Coupling), Carbon Steel with alloying elements (Mn, Cr, Mo, Ni), and 2-3/8" to 13-3/8" OD; compatible with standard tubing and casing sizes. 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 Tubing & Casing Coupling?
Dongying Lake Petroleum Technology co.,ltd offers Tubing & Casing Coupling with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Tubing & Casing Coupling the most?
Tubing & Casing Coupling 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 Tubing & Casing Coupling supplier hold?
Dongying Lake Petroleum Technology co.,ltd maintains international quality certifications. These ensure that the Tubing & Casing Coupling meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Tubing & Casing Coupling 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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