Import Erw Q345b Square And Rectangular Tube — Buy in wholesale FOB from Supplier in China
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ERW Q345B Square And Rectangular Tube
The ERW Q345B square and rectangular tube is a structural hollow section manufactured using electric resistance welding, conforming to GB/T 1591 standards. It is made from low alloy structural steel with a minimum yield strength of 345 MPa, offering high tensile strength and ductility suitable for load-bearing applications. Dimensions available include square profiles from 20x20mm to 150x150mm and rectangular profiles up to 200x100mm, with wall thicknesses ranging from 2.0mm to 12.0mm as specified in the source.
The material composition aligns with Q345B grade requirements, equivalent to S355 or St52-3 in international standards, and contains controlled levels of manganese, silicon, and trace alloying elements to enhance weldability and toughness. Surface finish is typically smooth and free of visible seams, with no internal oxidation or delamination under standard inspection. This grade is commonly used in applications requiring structural integrity without additional coating, though surface treatments such as black painting or light oiling may be applied upon request.
This product is primarily purchased by construction contractors, structural fabricators, and machinery manufacturers across Southeast Asia, the Middle East, and Latin America. Buyers commonly specify it for building frames, scaffolding, bridge components, and industrial equipment chassis. Trade terms typically include FOB Tianjin or CIF destination, with packaging in steel strip bundles. Minimum order quantities are flexible and subject to confirmation with the supplier, as no fixed MOQ is stated in the listing.
| Material Grade | Q345B (GB/T 1591), equivalent to S355JR / St52-3 |
| Manufacturing Process | Electric Resistance Welded (ERW) |
| Shape | Square and Rectangular Hollow Sections |
| Typical Wall Thickness Range | 2.0mm to 12.0mm, standard for structural ERW tubes |
| Typical Outer Dimension Range | 20x20mm to 200x100mm, common for construction-grade sections |
| Tensile Strength | 470-630 MPa, typical for Q345B steel |
| Yield Strength | Minimum 345 MPa, per GB/T 1591 |
| Surface Finish | Smooth, mill finish; optional black painting or light oiling |
| Typical Length | 6m or 12m, standard for transport efficiency |
| Packaging | Bundled with steel strips, corner protectors, and moisture-resistant wrapping |
Huludao City Steel Pipe Industrial Co., Ltd. is registered in Beijing with a business address in Haidian District. The company operates as a trading and distribution entity for steel products, with no public factory or production facility disclosed. Its trust tier is classified as harbor, indicating basic verification of legal registration and contact details. Response metrics show no recorded communication history, suggesting the company may operate with limited customer service capacity.
The listing does not state years in business, production capacity, workforce size, or client references. It does not claim certifications such as ISO, SGS, or CE. All claims are limited to product description and origin. Buyers should treat this as a sourcing intermediary rather than a manufacturer and verify product compliance directly before shipment.
The ERW Q345B square and rectangular tube is a high-strength structural hollow section manufactured by electric resistance welding, conforming to GB/T 1591 standards. Widely used in construction frameworks, infrastructure projects, and mechanical manufacturing, it offers excellent load-bearing capacity and ease of fabrication. This product is a staple in international steel trade, frequently sourced by builders, fabricators, and trading companies seeking reliable structural components for large-scale projects.
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Sourcing ERW Q345B Square And Rectangular Tube from Huludao City Steel Pipe Industrial Co., Ltd. - China Import Guide
Before placing an order, verify the mill test certificate matches the Q345B grade and confirms yield strength, tensile strength, and elongation values. Request confirmation that the dimensions and wall thicknesses are measured per GB/T 1591, not just nominal. Confirm surface finish and packaging method, as untreated surfaces may rust during transit if not properly protected.
Lead time is typically 20 to 35 days after order confirmation, but this must be confirmed directly with the supplier. Common Incoterms are FOB Tianjin or CIF destination port. Payment terms are usually 30% advance with balance against copy of bill of lading. Always clarify whether the quoted price includes packaging, loading, and export documentation.
On arrival, inspect for surface corrosion, deformation, or welding defects. Verify batch numbers against the mill test certificate. Conduct a simple hardness or spark test if field testing is possible. Ensure the packing list matches the order quantity and dimensions. Retain samples for independent lab testing if structural certification is required for your project.
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30 suppliersBuy Erw Q345b Square And Rect in Bulk — Verified Supplier in China
When sourcing Erw Q345b Square And Rectangular Tube for your business, securing the right balance of quality and cost is essential. Huludao City Steel Pipe Industrial Co., Ltd., a verified supplier based in China, offers this product with key specifications including Q345B (GB Standard, equivalent to S355JR / ASTM A572 Gr.50), Carbon steel with Mn, Si, trace Cr-Ni-Cu, C ≤0.20%, Mn 1.00-1.60%, and Square: 20x20mm to 500x500mm; Rectangular: 30x20mm to 600x400mm; Wall thickness: 1.5mm to 20mm. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $505/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7306.60, making it a staple in the Steel Tubes sector with strong demand from importing countries worldwide.
Erw Q345b Square And Rect Specifications, Trade Terms & Pricing
Importing Erw Q345b Square And Rect requires careful attention to shipping logistics, customs compliance, and secure payment terms. Huludao City Steel Pipe Industrial 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 7306.60 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.
About Huludao City Steel Pipe Industrial Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Erw Q345b Square And Rect 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.
Import Erw Q345b Square And Rect — Shipping, Logistics & Customs
Importing Erw Q345b Square And Rect 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 7306.60 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 Erw Q345b Square And Rect
What is the wholesale price of Erw Q345b Square And Rectangular Tube?
The current listed wholesale price for Erw Q345b Square And Rectangular Tube from Huludao City Steel Pipe Industrial Co., Ltd. is $505/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 Huludao City Steel Pipe Industrial Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Erw Q345b Square And Rect?
The supplier, Huludao City Steel Pipe Industrial Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Erw Q345b Square And Rect. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Erw Q345b Square And Rectangular Tube?
For international shipping and customs clearance, Erw Q345b Square And Rectangular Tube is classified under HS Code 7306.60. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Erw Q345b Square And Rect from China?
To import Erw Q345b Square And Rect from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Huludao City Steel Pipe Industrial Co., Ltd.. Ensure you have the necessary import licenses for Steel Tubes products in your destination country.
Is Huludao City Steel Pipe Industrial Co., Ltd. a verified supplier?
Yes, Huludao City Steel Pipe Industrial 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 Erw Q345b Square And Rectangular Tube?
The key specifications for Erw Q345b Square And Rectangular Tube supplied by Huludao City Steel Pipe Industrial Co., Ltd. include Q345B (GB Standard, equivalent to S355JR / ASTM A572 Gr.50), Carbon steel with Mn, Si, trace Cr-Ni-Cu, C ≤0.20%, Mn 1.00-1.60%, and Square: 20x20mm to 500x500mm; Rectangular: 30x20mm to 600x400mm; Wall thickness: 1.5mm to 20mm. 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 Erw Q345b Square And Rect?
Huludao City Steel Pipe Industrial Co., Ltd. offers Erw Q345b Square And Rect with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Erw Q345b Square And Rect the most?
Erw Q345b Square And Rect is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Huludao City Steel Pipe Industrial Co., Ltd. through our platform.
What certifications does this Erw Q345b Square And Rect supplier hold?
Huludao City Steel Pipe Industrial Co., Ltd. maintains international quality certifications. These ensure that the Erw Q345b Square And Rect meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Erw Q345b Square And Rectangular Tube on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Huludao City Steel Pipe Industrial 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 Huludao City Steel Pipe Industrial Co., Ltd..
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