Import Drill Collar — Buy in Bulk from Supplier in China
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The Drill collar from Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. is manufactured from AISI 4145H alloy steel, a high-strength material selected for its fatigue resistance and toughness under cyclic loading. This product is engineered to deliver precise weight transfer to the drill bit, with standardized dimensions compatible with API 5DP drill pipe connections. The listing confirms customization options for length and diameter, indicating production flexibility for project-specific needs.
The material grade AISI 4145H is a chromium-molybdenum steel with higher carbon content than AISI 4140, offering improved hardenability and tensile strength. Typical yield strength exceeds 90,000 psi, and elongation is maintained above 15% after heat treatment. The collars feature threaded ends with API 7-1 compliant pin and box profiles, ensuring secure coupling under high torque. Surface treatments are not specified, but standard practice includes shot peening to improve fatigue life.
This product is used by drilling contractors in oil and gas exploration, geothermal projects, and mineral extraction where stable bottom-hole assembly performance is critical. Buyers typically order in batches of 5 to 20 units, depending on rig requirements. Packaging is designed for heavy-duty transport, with protective coatings and steel frames. Trade terms include FOB and CIF, with payment via L/C or T/T. Buyers should confirm the heat treatment process and certification level.
| Material | AISI 4145H alloy steel (confirmed) |
| Tensile strength | Minimum 120,000 psi (typical for AISI 4145H after quench and temper) |
| Yield strength | Minimum 90,000 psi (typical for AISI 4145H after quench and temper) |
| Outer diameter | Customizable, standard range: 5.0 inches to 10.75 inches |
| Length | Customizable, standard range: 28 feet to 42 feet |
| Thread type | API 7-1 compliant pin and box connections |
| Hardness | 28 to 34 HRC (typical for heat-treated AISI 4145H) |
| Wall thickness | 1.5 inches to 2.75 inches (typical for standard weights) |
| Internal bore | 2.75 inches to 4.75 inches (typical, for fluid circulation) |
| Packaging | Steel frames with rust-preventive coating and wooden crating |
Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. is an imported supplier located in Sanhe Village, Jiyuan, Henan, China. The company is verified as a harbor-tier supplier, indicating basic export readiness. No details are provided on production capacity, workforce, or years in operation. The listing identifies the use of AISI 4145H steel, suggesting some level of technical capability in material selection.
The supplier does not list certifications, client references, or quality assurance procedures beyond general mention of 'industry certifications.' Response metrics are unavailable. Buyers should treat this as a manufacturer with documented material specification control but limited public transparency. Direct communication is recommended to verify heat treatment protocols and testing capabilities.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Sourcing Drill collar from Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. - China Import Guide
Verify the material certification for AISI 4145H steel, including chemical composition and heat treatment parameters. Request a mill test report that shows tensile, yield, and elongation values per heat batch. Confirm that thread dimensions comply with API 7-1 Class 2 or 3, and inspect for thread damage or mismatched pin-box profiles before acceptance.
Confirm lead time with the supplier, as custom lengths may extend delivery to 6 to 10 weeks. Payment terms are typically 30% advance and 70% against shipping documents. Incoterms are FOB or CIF; ensure the port of loading is specified and that packaging includes moisture barriers and anti-corrosion wraps. Request photos of the loaded container before departure.
Conduct a pre-shipment inspection focusing on surface finish, thread integrity, and dimensional accuracy. Use a micrometer to check wall thickness and a thread gauge to verify pitch diameter. Request copies of MPI and UT test reports. Ensure the supplier provides a certificate of conformity, export declaration, and origin certificate. Retain samples for independent lab testing if operating in regulated environments.
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30 suppliersBuy & Import Drill Collar — Wholesale Supply from China
Securing a reliable supply chain for Drill Collar is critical for maintaining your business operations. Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd., a verified supplier located in China, provides high-quality Drill Collar ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Heavy Machinery industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Drill Collar from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd.. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
About Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. — Verified Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Heavy Machinery category or discover new suppliers across the Heavy Machinery sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Drill Collar
When importing Drill Collar from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Drill Collar
How can I get the wholesale price for Drill Collar?
Click the "Request Quotation" button to contact Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Drill Collar in bulk from China?
Yes, Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. provides Drill Collar for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Drill Collar to your country.
How do I request a sample of Drill Collar?
Send a direct message to Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Drill Collar?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd..
Does Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd., offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Heavy Machinery suppliers on EximNext?
Yes, EximNext hosts a wide network of verified Heavy Machinery manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Jiyuan Sanhezhengyuan Petroleum Machinery Co., Ltd. for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our online B2B marketplace.
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