Import 16mn 25mn 37mn Precision Cold Drawn Seam — Buy in wholesale FOB from Supplier in China
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16Mn 25mn 37Mn Precision Cold Drawn Seam
Wuxi Longwei Precision Tube Co., Ltd. supplies precision cold drawn seamless steel pipes in three carbon-manganese structural grades: 16Mn, 25Mn, and 37Mn. These tubes are manufactured through a cold drawing process that delivers tight dimensional tolerances, smooth internal bore surfaces, and enhanced mechanical strength compared to hot-finished equivalents. The pipes conform to international standards including DIN 2391 and GB/T 3639, making them suitable for export to markets requiring documented compliance with recognised specifications.
The 16Mn grade offers a balanced combination of strength and weldability, commonly specified for structural and hydraulic applications. The 25Mn and 37Mn grades provide progressively higher carbon and manganese content, yielding increased tensile and yield strength for more demanding mechanical engineering uses. Typical applications include hydraulic cylinder barrels, high-pressure fluid lines, automotive steering columns, and precision-machined components where dimensional consistency and surface finish are critical. Wall thicknesses and outer diameters follow the tolerances defined in DIN 2391 or the equivalent Chinese standard GB/T 3639.
Buyers in hydraulic equipment manufacturing, automotive parts supply, and general engineering fabrication represent the core market for these tubes. The listing notes export-ready packaging in sea-worthy bundling, though specific MOQ, pricing, and available size ranges are not disclosed. Importers should contact Wuxi Longwei directly to confirm stock availability in their required dimensions, request mill test certificates for mechanical properties, and negotiate trade terms including Incoterms and lead times.
| Material Grades | 16Mn, 25Mn, 37Mn (Carbon-Manganese Structural Steel) |
| Manufacturing Process | Precision cold drawn seamless |
| Applicable Standards | DIN 2391, GB/T 3639 |
| Surface Finish (Inner Bore) | Smooth, cold-drawn finish (typical Ra ≤ 1.6 µm for precision tubes) |
| Dimensional Tolerance | Tight tolerances per DIN 2391 / GB/T 3639 (typical outer diameter tolerance ±0.05mm for precision grade) |
| Typical Outer Diameter Range | 6mm - 200mm (standard range for cold drawn seamless tubes in these grades) |
| Typical Wall Thickness Range | 1mm - 20mm (standard range depending on OD and grade) |
| Typical Mechanical Properties (16Mn) | Yield strength ≥ 345 MPa, tensile strength 490-670 MPa (standard per GB/T 1591) |
| Packaging | Sea-worthy bundling for export |
| Typical Applications | Hydraulic systems, automotive components, high-pressure fluid lines, precision-machined parts |
Wuxi Longwei Precision Tube Co., Ltd. operates from Yaxi Industrial Park, Luoshe Town, Wuxi, Jiangsu province, China. The Wuxi region has a well-established steel tube and precision manufacturing base, and the supplier's address places it within an industrial park dedicated to manufacturing activity. The listing carries a harbour verification tier, but no response rate or average reply time data is available, so buyers should assess communication speed through direct enquiry before proceeding.
The supplier's product focus is precision cold drawn seamless steel tubes in carbon-manganese grades, with the listing referencing compliance with DIN 2391 and GB/T 3639 standards. No details are provided regarding the company's founding year, production capacity, number of employees, or export client portfolio. Buyers should request factory audit documentation, production line photographs or videos, and sample mill test certificates to evaluate the supplier's manufacturing capability and quality control processes.
Precision cold drawn seamless steel pipes in 16Mn, 25Mn, and 37Mn grades are high-quality carbon-manganese structural tubes widely used in hydraulic systems, automotive components, and mechanical engineering applications. These cold-drawn tubes offer superior dimensional accuracy, smooth inner surfaces, and excellent mechanical properties, making them ideal for high-pressure fluid lines and precision-machined parts. Export-ready with sea-worthy bundling, these tubes meet international standards including DIN 2391 and GB/T 3639 for global trade.
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Sourcing 16Mn 25Mn 37Mn Precision Cold Drawn Seamless Steel Pipes from Wuxi Longwei Precision Tube Co., Ltd. - China Import Guide
Before ordering precision cold drawn seamless tubes from Wuxi Longwei, confirm the exact steel grade, outer diameter, wall thickness, and length you require, along with the dimensional tolerance class per DIN 2391 or GB/T 3639. Request a formal quotation that includes unit pricing, MOQ per size, and available stock versus production lead times. Ask whether the supplier can provide tubes cut to your specified lengths or only in standard mill lengths, as this affects your material yield and downstream processing costs.
For international shipping, clarify Incoterms (FOB Wuxi/Shanghai or CIF to your port), container packing method, and whether anti-corrosion treatment is applied for sea transit. Jiangsu province has well-connected port access through Shanghai and other Yangtze River Delta terminals, so freight logistics are generally straightforward. Confirm payment terms and whether the supplier accepts letters of credit, which are common for first-time orders of this commodity type.
Quality verification should include reviewing mill test certificates for chemical composition and mechanical properties before shipment. If your application is safety-critical (hydraulic cylinders, pressure lines), consider engaging a third-party inspection agency to witness testing and verify dimensional compliance at the supplier's facility. Establish clear specifications for surface defects, straightness, and end finish in your purchase order to avoid disputes on receipt. Ask about the supplier's return or replacement policy for material that fails incoming inspection at your facility.
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30 suppliersBuy 16mn 25mn 37mn Precision in Bulk — Verified Supplier in China
When sourcing 16mn 25mn 37mn Precision Cold Drawn Seam for your business, securing the right balance of quality and cost is essential. Wuxi Longwei Precision Tube Co., Ltd., a verified supplier based in China, offers this product with key specifications including 16Mn, 25Mn, 37Mn Cold-Drawn Seamless Steel Tube, Carbon 0.12-0.20%, Manganese 0.70-1.60%, Silicon ≤0.40%, trace elements, and OD 6-120mm, Wall Thickness 1-20mm, Length 3-12m (customizable). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $10/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7304.31, making it a staple in the Steel Tubes sector with strong demand from importing countries worldwide.
16mn 25mn 37mn Precision Specifications, Trade Terms & Pricing
Importing 16mn 25mn 37mn Precision requires careful attention to shipping logistics, customs compliance, and secure payment terms. Wuxi Longwei Precision Tube 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 7304.31 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 online B2B marketplace designed to make cross-border trade secure and efficient.
About Wuxi Longwei Precision Tube Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 16mn 25mn 37mn Precision 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 Tubes category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import 16mn 25mn 37mn Precision — Shipping, Logistics & Customs
Importing 16mn 25mn 37mn Precision 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 7304.31 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 16mn 25mn 37mn Precision
What is the wholesale price of 16mn 25mn 37mn Precision Cold Drawn Seam?
The current listed wholesale price for 16mn 25mn 37mn Precision Cold Drawn Seam from Wuxi Longwei Precision Tube Co., Ltd. is $10/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 Wuxi Longwei Precision Tube Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for 16mn 25mn 37mn Precision?
The supplier, Wuxi Longwei Precision Tube Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 16mn 25mn 37mn Precision. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 16mn 25mn 37mn Precision Cold Drawn Seam?
For international shipping and customs clearance, 16mn 25mn 37mn Precision Cold Drawn Seam is classified under HS Code 7304.31. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import 16mn 25mn 37mn Precision from China?
To import 16mn 25mn 37mn Precision from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Wuxi Longwei Precision Tube Co., Ltd.. Ensure you have the necessary import licenses for Steel Tubes products in your destination country.
Is Wuxi Longwei Precision Tube Co., Ltd. a verified supplier?
Yes, Wuxi Longwei Precision Tube 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 16mn 25mn 37mn Precision Cold Drawn Seam?
The key specifications for 16mn 25mn 37mn Precision Cold Drawn Seam supplied by Wuxi Longwei Precision Tube Co., Ltd. include 16Mn, 25Mn, 37Mn Cold-Drawn Seamless Steel Tube, Carbon 0.12-0.20%, Manganese 0.70-1.60%, Silicon ≤0.40%, trace elements, and OD 6-120mm, Wall Thickness 1-20mm, Length 3-12m (customizable). 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 16mn 25mn 37mn Precision?
Wuxi Longwei Precision Tube Co., Ltd. offers 16mn 25mn 37mn Precision with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 16mn 25mn 37mn Precision the most?
16mn 25mn 37mn Precision is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Wuxi Longwei Precision Tube Co., Ltd. through our platform.
What certifications does this 16mn 25mn 37mn Precision supplier hold?
Wuxi Longwei Precision Tube Co., Ltd. maintains international quality certifications. These ensure that the 16mn 25mn 37mn Precision meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 16mn 25mn 37mn Precision Cold Drawn Seam on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Wuxi Longwei Precision Tube 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 Wuxi Longwei Precision Tube Co., Ltd..
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