Import Welded Steel Tube — Buy in wholesale FOB from Supplier in China
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Welded Steel Tube
Unidus Hk Cooperation manufactures welded steel tubes using a drawn‑over‑mandrel (DOM) process from carbon steel SAE 1008‑1020. The tubes are produced to ASTM A513 type‑5 and type‑6 standards, delivering a smooth internal surface and high concentricity. They are supplied as seamless tubes suitable for precision engineering applications. The product description highlights the use of electrical resistance welded blanks that are cold‑drawn through a die and over a mandrel.
In the DOM tube market, typical outer diameters range from 10 mm to 200 mm with wall thicknesses between 1.5 mm and 10 mm, providing a balance of strength and weight. Tensile strength for SAE 1008‑1020 steel is typically 400 MPa to 500 MPa, and dimensional tolerance is usually ±0.1 mm for both outer and inner diameters. Standard surface finish levels meet the SSID (Special Smooth ID) requirement, reducing friction in hydraulic systems. These typical values align the tubes with automotive and machinery design standards.
Key users include automotive manufacturers for axles and suspension components, hydraulic system integrators, and machinery builders requiring precise tubing. Unidus Hk Cooperation ships the tubes in standard export bundles or crates, and each consignment is accompanied by mill test certificates. The supplier does not publish a fixed MOQ, lead time or pricing, so buyers should request those specifics directly. Tailored shipping terms and documentation can be arranged to suit the importer’s logistics chain.
| Material | Carbon Steel SAE 1008‑1020 |
| Manufacturing process | Drawn Over Mandrel (DOM) from ERW blanks |
| Standards complied | ASTM A513 type‑5, ASTM A513 type‑6 (standard) |
| Typical outer diameter range | 10 mm - 200 mm (typical) |
| Typical wall thickness (typical) | 1.5 mm - 10 mm (typical) |
| Tensile strength (typical) | 400 MPa - 500 MPa (typical for SAE 1008‑1020) |
| Surface finish | SSID (Special Smooth ID) - standard for hydraulic applications |
| Packaging | Bundles or crates with mill test certificates |
Unidus Hk Cooperation is located at 556 Renmin Road, Tangshi, Jiangsu Province, Suzhou 215687, Jiangsu, China. The supplier carries a harbor trust tier, indicating a moderate level of verification, and its profile shows a 0 % response rate with no recorded response time, suggesting that communication may require persistent follow‑up.
The company lists welded steel tubes as its primary offering and notes that each shipment includes mill test certificates confirming material and dimensional compliance. No explicit MOQ, price list or lead‑time is disclosed, so prospective buyers should request these details directly from the supplier.
Drawn Over Mandrel (DOM) welded steel tubes are manufactured to ASTM A513 type-5 and type-6 standards, offering superior concentricity, smooth inner surface, and consistent mechanical properties for precision applications. These carbon steel tubes are widely used in automotive axles, hydraulic cylinders, machinery frames, and structural assemblies where strength and dimensional accuracy are critical. Available in standard export bundles or crates, DOM tubes are a high-demand commodity in global industrial supply chains.
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Sourcing Welded Steel Tube from Unidus Hk Cooperation - China Import Guide
Before committing to a purchase from Unidus Hk Cooperation, confirm the exact SAE 1008‑1020 grade, outer diameter, wall‑thickness schedule and the presence of mill test certificates that detail chemical composition and mechanical properties. Request a sample certificate to verify that the tubes meet ASTM A513 type‑5 or type‑6 requirements and that dimensional tolerances are within the agreed limits. Early verification helps prevent costly re‑work or non‑conformance during production.
Discuss the preferred Incoterm - FOB or CIF - and identify the loading port in China, such as Shanghai or Tianjin, which are common departure points for steel tubing. Because the listing does not specify lead time, ask the supplier for an estimated production and shipping schedule based on your order volume. Clarify payment terms, typically a letter of credit or bank transfer, and ensure they are documented before finalising the contract.
Plan for a third‑party inspection either at the factory or at the destination port to validate compliance with ASTM standards and the SSID surface finish. Non‑destructive testing, such as ultrasonic examination, can detect internal flaws that are not evident in the mill test certificate. Ensure that the supplier provides all relevant documentation, including a certificate of origin and any applicable ISO declarations, to satisfy customs clearance and quality‑assurance processes.
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30 suppliersBuy Welded Steel Tube in Bulk — Verified Supplier in China
When sourcing Welded Steel Tube for your business, securing the right balance of quality and cost is essential. Unidus Hk Cooperation, a verified supplier based in China, offers this product with key specifications including ASTM A513 Type-5 and Type-6 / DOM (Drawn Over Mandrel), Carbon Steel, C: 0.08-0.23%, Mn: 0.30-0.60%, low-alloy equivalent, and OD: 12.7mm - 114.3mm (1/2" - 4.5"); Wall Thickness: 1.2mm - 8.0mm; Length: 6m standard (custom cut available). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1,1501,450./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 7306.30, making it a staple in the Steel Tubes sector with strong demand from importing countries worldwide.
Welded Steel Tube Specifications, Trade Terms & Pricing
Importing Welded Steel Tube requires careful attention to shipping logistics, customs compliance, and secure payment terms. Unidus Hk Cooperation 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 7306.30 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 Unidus Hk Cooperation — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Welded Steel Tube 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 import export marketplace. Start your sourcing journey today.
Import Welded Steel Tube — Shipping, Logistics & Customs
Importing Welded Steel Tube 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 7306.30 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 Welded Steel Tube
What is the wholesale price of Welded Steel Tube?
The current listed wholesale price for Welded Steel Tube from Unidus Hk Cooperation is $1,1501,450./Unit 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 Unidus Hk Cooperation through EximNext.
What is the Minimum Order Quantity (MOQ) for Welded Steel Tube?
The supplier, Unidus Hk Cooperation, has set a Minimum Order Quantity (MOQ) of 1 Unit for Welded Steel Tube. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Welded Steel Tube?
For international shipping and customs clearance, Welded Steel Tube is classified under HS Code 7306.30. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Welded Steel Tube from China?
To import Welded Steel Tube from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Unidus Hk Cooperation. Ensure you have the necessary import licenses for Steel Tubes products in your destination country.
Is Unidus Hk Cooperation a verified supplier?
Yes, Unidus Hk Cooperation 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 Welded Steel Tube?
The key specifications for Welded Steel Tube supplied by Unidus Hk Cooperation include ASTM A513 Type-5 and Type-6 / DOM (Drawn Over Mandrel), Carbon Steel, C: 0.08-0.23%, Mn: 0.30-0.60%, low-alloy equivalent, and OD: 12.7mm - 114.3mm (1/2" - 4.5"); Wall Thickness: 1.2mm - 8.0mm; Length: 6m standard (custom cut available). 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 Welded Steel Tube?
Unidus Hk Cooperation offers Welded Steel Tube with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Welded Steel Tube the most?
Welded Steel Tube is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Unidus Hk Cooperation through our platform.
What certifications does this Welded Steel Tube supplier hold?
Unidus Hk Cooperation maintains international quality certifications. These ensure that the Welded Steel Tube meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Welded Steel Tube on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Unidus Hk Cooperation 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 Unidus Hk Cooperation.
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