Import Aisi 4137 Alloy Steel Tool Joint — Buy in wholesale FOB from Supplier in China
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AISI 4137 Alloy Steel Tool Joint
The AISI 4137 alloy steel tool joint from Dongying Lake Petroleum Technology co.,ltd is engineered for oilfield drilling applications, with mechanical properties fully compliant with API standards. Hardness, tensile strength, and impact resistance meet the stringent requirements for downhole service, ensuring durability under high-stress conditions. All connections are manufactured to API Spec 7-1, with surfaces phosphatized or copper-plated to enhance corrosion resistance and prevent galling during operation.
This tool joint is produced from chromium-molybdenum alloy steel, a grade known for its balance of strength and toughness in extreme environments. The material’s composition typically includes carbon at 0.35 - 0.40%, chromium at 0.90 - 1.20%, and molybdenum at 0.15 - 0.25%, providing superior wear resistance and fatigue life. Typical industry practice includes heat treatment to achieve a uniform hardness of 28 - 34 HRC, with Charpy V-notch impact values exceeding 27 J at -40°C for critical applications.
Primarily used in the oil and gas sector for drill pipe connections, these tool joints are critical for maintaining integrity in deep wells and directional drilling. Buyers include drilling contractors, exploration companies, and OEMs assembling rig equipment. Standard packaging for export is wooden crates or steel skids, with each joint marked for traceability. Confirm lead times and Incoterms directly with the supplier, as these depend on order volume and current production schedules.
| Material Grade | AISI 4137 Chromium-Molybdenum Alloy Steel |
| Standard Compliance | API Spec 7-1 |
| Surface Treatment | Phosphatized or Copper-Plated |
| Typical Carbon Content | 0.35 - 0.40% (standard for grade) |
| Typical Chromium Content | 0.90 - 1.20% (standard for grade) |
| Typical Molybdenum Content | 0.15 - 0.25% (standard for grade) |
| Hardness Range | 28 - 34 HRC (typical after heat treatment) |
| Impact Resistance (Charpy V-notch) | >27 J at -40°C (typical for oilfield service) |
| Corrosion Protection | Phosphate coating or copper plating |
| Connection Type | API Threaded (standard for tool joints) |
Dongying Lake Petroleum Technology co.,ltd is based in Dongying City, Shandong Province, a hub for China’s oilfield equipment manufacturing sector. The company operates from the 15th floor of the Huatai Center in the 257000 postal district, specialising in alloy steel components for drilling and extraction. Its focus on API-compliant products signals a commitment to industry standards, though buyers should verify current certifications directly with the supplier.
The supplier’s profile indicates a harbor trust tier, reflecting a baseline level of verification for export capability. While response metrics are not currently available, the technical descriptions provided suggest familiarity with oilfield material requirements. The absence of published lead times or MOQs means these must be negotiated per order. For buyers prioritising API compliance and surface treatments, this supplier’s stated adherence to Spec 7-1 and anti-galling measures may align with project needs.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing AISI 4137 Alloy Steel Tool Joint from Dongying Lake Petroleum Technology co.,ltd - China Import Guide
Before ordering, verify that the supplier’s API Spec 7-1 compliance includes third-party certification for the tool joint’s material and thread dimensions. Request mill test certificates (MTCs) for the AISI 4137 alloy, confirming chemical composition and mechanical properties match the project’s specifications. Check whether the phosphatizing or copper plating process meets additional client standards, such as NACE MR0175 for sour service environments.
Confirm logistics details, including the nearest port of loading (likely Qingdao or Tianjin for Dongying-based suppliers) and whether the supplier can arrange inland transport to the port. Lead times for custom tool joints can exceed 8 - 12 weeks, so factor this into project timelines. Clarify Incoterms; FOB or CFR are common for bulk shipments, but DDP may be negotiable for high-value orders. Payment terms typically require a 30% deposit, with the balance due prior to shipment.
Quality checks should include visual inspection of thread integrity and coating uniformity, followed by dimensional verification using API thread gauges. For critical applications, consider third-party inspection at the supplier’s facility or pre-shipment. Request documentation such as heat treatment charts, hardness test reports, and coating thickness measurements. Ensure the supplier provides a traceability system, with each joint marked with heat numbers and production dates for future audits.
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30 suppliersBuy Aisi 4137 Alloy Steel Too in Bulk — Verified Supplier in China
When sourcing Aisi 4137 Alloy Steel Tool Joint 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 for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $300/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Flanges sector with strong demand from importing countries worldwide.
Aisi 4137 Alloy Steel Too Specifications, Trade Terms & Pricing
Importing Aisi 4137 Alloy Steel Too 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. 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 import export 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 Aisi 4137 Alloy Steel Too 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 Flanges category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Aisi 4137 Alloy Steel Too — Shipping, Logistics & Customs
Importing Aisi 4137 Alloy Steel Too 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 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 Aisi 4137 Alloy Steel Too
What is the wholesale price of Aisi 4137 Alloy Steel Tool Joint?
The current listed wholesale price for Aisi 4137 Alloy Steel Tool Joint from Dongying Lake Petroleum Technology co.,ltd is $300/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 Aisi 4137 Alloy Steel Too?
The supplier, Dongying Lake Petroleum Technology co.,ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Aisi 4137 Alloy Steel Too. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Aisi 4137 Alloy Steel Tool Joint?
The HS Code classification for Aisi 4137 Alloy Steel Tool Joint depends on the specific grade and form. Contact Dongying Lake Petroleum Technology co.,ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Aisi 4137 Alloy Steel Too from China?
To import Aisi 4137 Alloy Steel Too 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 Flanges 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 Aisi 4137 Alloy Steel Tool Joint?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Dongying Lake Petroleum Technology co.,ltd through EximNext.
What packaging options are available for bulk orders of Aisi 4137 Alloy Steel Too?
Dongying Lake Petroleum Technology co.,ltd offers Aisi 4137 Alloy Steel Too with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Aisi 4137 Alloy Steel Too the most?
Aisi 4137 Alloy Steel Too 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 Aisi 4137 Alloy Steel Too supplier hold?
Dongying Lake Petroleum Technology co.,ltd maintains international quality certifications. These ensure that the Aisi 4137 Alloy Steel Too meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Aisi 4137 Alloy Steel Tool Joint 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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