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JQF Group offers carbon steel square tubes manufactured in grades S235, S275 and S355. The tubes conform to EN 10219 and ASTM A500 standards, providing a reliable structural profile. Typical outer dimensions span from 20 mm up to 400 mm, with wall thicknesses between 1.5 mm and 16 mm. The product is supplied in bundled packs ready for container loading.
Tensile strengths range from typical 360 MPa for S235 to 470 MPa for S355, with corresponding yield strengths of typical 235‑355 MPa. The welded hollow sections feature a smooth finish that facilitates welding and aesthetic applications. No specific certification documents are listed; buyers should request mill test reports to verify grade compliance.
These square tubes are employed in building frames, bridge components, machinery enclosures and automotive sub‑structures by engineers and fabricators. Bulk procurement is common, with standard packaging that maximises container space. The listing does not disclose minimum order quantities, lead times or payment conditions, so direct confirmation with JQF Group is necessary. Importers should also clarify Incoterms and any required export documentation before finalising the order.
| Material | Carbon Steel |
| Grades | S235, S275, S355 |
| Standard(s) | EN 10219, ASTM A500 |
| Outer Dimension Range | 20 mm - 400 mm (typical) |
| Wall Thickness Range | 1.5 mm - 16 mm (typical) |
| Tensile Strength | 360‑470 MPa (typical for S235‑S355) |
| Yield Strength | 235‑355 MPa (typical for S235‑S355) |
| Packaging | Bundled packs for container loading |
| Surface Finish | Smooth, weld‑ready |
| Weight per metre | Approx. 5‑40 kg/m (typical depending on size) |
JQF Group is based at Block 1, Changhong Road, Yuhuatai District, Nanjing, Jiangsu Province, China. It is classified as an imported supplier with a harbour trust tier, indicating that it has passed basic cross‑border verification procedures on the platform.
The supplier’s public metrics show a response rate of 0 % and no average response time, suggesting limited engagement through the listing. Beyond the address and tier classification, the profile does not disclose production capacity, certifications or client references, so buyers should seek additional confirmation directly from JQF Group.
Square Steel Tubes are versatile structural hollow sections widely used in construction, infrastructure, and industrial fabrication worldwide. Available in grades such as S235, S275, and S355, with dimensions typically ranging from 20mm to 400mm and wall thicknesses from 1.5mm to 16mm, manufactured to EN 10219 or ASTM A500 standards. These hollow sections offer excellent strength-to-weight ratio, making them ideal for frames, supports, and architectural applications. As a high-demand export commodity in global steel trade, square tubes are competitively priced and available in bulk shipments with standard bundle packaging. Contact us for container-load pricing and delivery schedules to your port of destination.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Prior to ordering, confirm that the selected grade, dimensions and mechanical properties align with your engineering specifications. Request mill test reports and verify that the tubes meet EN 10219 or ASTM A500 requirements. Ensuring the availability of these documents helps avoid non‑conforming deliveries and streamlines customs clearance.
Shipping from Nanjing typically involves loading the bundled packs into a 40‑foot container at the nearest port. As the listing does not specify lead time, Incoterms or payment terms, ask JQF Group to clarify FOB or CIF conditions, expected transit duration and acceptable payment methods such as L/C or T/T. Clarifying these logistics details reduces uncertainty in the procurement process.
Upon receipt, arrange an independent inspection to check dimensions, wall thickness, surface quality and mechanical properties against the agreed specifications. Request a packing list, commercial invoice and, if required, a certificate of origin to satisfy customs authorities. Maintaining thorough documentation supports quality control and facilitates any downstream processing or resale activities.
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When sourcing Square Tubes for your business, securing the right balance of quality and cost is essential. JQF Group, a verified supplier based in China, offers this product with key specifications including S235JR, S275JR, S355J2H (Carbon Structural Steel), 20mm x 20mm to 400mm x 400mm; Wall Thickness 1.5mm to 16mm; Standard Length 6m / 12m (cut-to-length available), and EN 10219-1 / EN 10210-1 (European); ASTM A500 (US); IS 4923 (India). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $7801,050./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 7306.61, making it a staple in the Steel Tubes sector with strong demand from importing countries worldwide.
Importing Square Tubes requires careful attention to shipping logistics, customs compliance, and secure payment terms. JQF Group 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 7306.61 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 B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Square Tubes 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 global B2B marketplace. Start your sourcing journey today.
Importing Square Tubes 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 7306.61 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Square Tubes from JQF Group is $7801,050./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 JQF Group through EximNext.
The supplier, JQF Group, has set a Minimum Order Quantity (MOQ) of 1 Unit for Square Tubes. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Square Tubes is classified under HS Code 7306.61. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Square Tubes from China, negotiate shipping terms (FOB, CIF, or EXW) directly with JQF Group. Ensure you have the necessary import licenses for Steel Tubes products in your destination country.
Yes, JQF Group 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.
The key specifications for Square Tubes supplied by JQF Group include S235JR, S275JR, S355J2H (Carbon Structural Steel), 20mm x 20mm to 400mm x 400mm; Wall Thickness 1.5mm to 16mm; Standard Length 6m / 12m (cut-to-length available), and EN 10219-1 / EN 10210-1 (European); ASTM A500 (US); IS 4923 (India). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
JQF Group offers Square Tubes with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Square Tubes is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from JQF Group through our platform.
JQF Group maintains international quality certifications. These ensure that the Square Tubes meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. JQF Group will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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 JQF Group.
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