Galvanized Steel Square Tube for Furniture Making, Hot Dipped Zinc Coated Hollow Section
Product Spotlights
Wuxi Yansheng Technology Co., Ltd. proudly presents our premium 20x20mm Galvanized Steel Square Tube, specifically engineered for furniture making and versatile structural applications. As a manufacturer with over 7 years of experience and an annual export value exceeding $50 million, we understand the critical demands of the global furniture industry. Our hot-dipped zinc coated hollow sections offer exceptional corrosion resistance, dimensional precision, and weldability, making them the preferred choice for modern furniture frames, shelving, and decorative structures.
This product is produced using high-grade steel (Q195/Q235) and undergoes a rigorous hot-dip galvanizing process, ensuring a uniform and durable zinc coating that protects against rust and environmental wear. Each tube is manufactured with strict tolerance control (typically ±0.1mm on outer dimensions) to guarantee seamless assembly in your production line. Whether you are crafting office desks, retail displays, or residential furniture, our 20x20mm square tubes deliver the strength and aesthetics required for lasting quality.
Technical Specifications & Dimensions
| Parameter | Value / Range | Notes |
| Outer Dimensions | 20mm × 20mm | Tolerance: ±0.1mm |
| Wall Thickness | 1.0mm – 2.0mm | Customizable upon request |
| Standard Length | 6 meters | Other lengths available |
| Zinc Coating Weight | 200-350 g/m² | Per ASTM A123 standard |
| Tensile Strength | ≥ 350 MPa | Depends on steel grade |
| Surface Finish | Bright spangle / matte | Spangle control available |
Key Advantages for Furniture Manufacturers
Superior Corrosion Resistance: The hot-dip galvanized coating forms a metallurgical bond with the steel, providing long-lasting protection against moisture, chemicals, and outdoor elements. Ideal for both indoor and outdoor furniture applications.
Excellent Weldability & Formability: Our square tubes can be easily welded, cut, drilled, and bent without cracking the zinc layer. This reduces fabrication time and costs for your production.
Consistent Dimensional Accuracy: Every tube is cold-formed and precisely sized to ensure perfect fitment during assembly. No need for extra adjustments, improving your manufacturing efficiency.
Lightweight yet Strong: The hollow section design offers high strength-to-weight ratio, making it easy to handle while providing robust structural support for furniture frames, racks, and supports.
Aesthetic Appeal: The smooth, silver-gray finish of galvanized steel adds a modern industrial look to furniture. Can be painted or left as-is for a minimalist style.
Customizable Options: We offer a range of wall thicknesses, lengths, and even special cutting or end treatments to match your specific product requirements.
Our manufacturing facility in Wuxi, Jiangsu, spans over 2,000 square meters and is equipped with advanced production lines including cold roll forming, high-frequency welding, and continuous hot-dip galvanizing. With a dedicated team of 101–200 skilled workers, we maintain strict quality control at every stage. Our annual export volume of US$50 million–US$100 million reflects the trust that international clients place in our products.
We serve diverse markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our products are shipped from major Chinese ports (Tianjin, Shanghai, Qingdao, Ningbo) with reliable logistics partners. We can provide samples, third-party inspection reports, and technical support to ensure your satisfaction.
Why Choose Wuxi Yansheng Technology?
Factory-Direct Pricing: Eliminate middleman costs and enjoy competitive prices without compromising quality.
Rigorous Quality Management: We operate under ISO9001 and ISO14001 certified systems, with additional certifications like HACCP, OHSAS18001, and others ensuring comprehensive control.
Flexible Minimum Order Quantities: We accommodate both small trial orders and large-volume contracts, making it easy for new partners to start.
Fast Lead Times: Typical production takes 15–20 days, and we can expedite urgent orders based on stock availability.
After-Sales Technical Support: Our engineers are available to answer questions about welding, coating, or design integration.
Available Certifications: Our company holds multiple international standards including ISO 9001, ISO 14001, OHSAS 18001, SA8000, TL9000, QS9000, HACCP, and others. These certifications demonstrate our commitment to quality, environment, health, and social responsibility.
We invite you to contact us for more information, samples, or a quotation. With our extensive experience and global reach, we are confident that our 20x20mm galvanized square tubes will meet and exceed your expectations for furniture making and beyond.
Frequently Asked Questions (FAQ)
Q: What is the difference between hot-dipped galvanized and pre-galvanized square tubes?
A: Hot-dipped galvanized tubes are immersed in molten zinc after forming, resulting in a thicker and more durable coating (200-350 g/m²). Pre-galvanized steel is coated before forming and often has a thinner layer. Our product uses the hot-dip method for maximum corrosion protection, especially suitable for furniture exposed to humidity or outdoor use.Q: Can you supply tubes with specific wall thicknesses other than standard?
A: Yes, we offer customizable wall thickness from 1.0mm to 2.0mm. Please inform us of your requirement, and we will adjust the production accordingly. For non-standard thicknesses, a small additional lead time may apply.Q: Are these tubes suitable for welding without removing the zinc coating?
A: Yes, our hot-dipped galvanized tubes can be welded directly. The zinc coating may produce some fumes during welding, so proper ventilation is recommended. The welded area will still retain corrosion resistance if post-weld treatment is applied.Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is typically 1 ton for standard sizes, but we can accommodate smaller trial orders (e.g., 500 kg) for new customers. Please contact our sales team for details.Q: Do you provide cutting services or special lengths?
A: Yes, we can cut tubes to specific lengths (e.g., 2m, 3m, 4m) with a tolerance of ±2mm. Please specify your required lengths when placing an order.Q: How do you ensure the quality of each batch?
A: We have a dedicated QC team that performs dimensional checks, coating weight tests (magnetic gauge), bend tests, and visual inspection. We can also provide mill test certificates and third-party inspection reports upon request.Q: Can I get samples before placing a bulk order?
A: Yes, we offer free samples for your evaluation (shipping cost is collect). Simply contact us with your delivery address and required length, and we will arrange dispatch within 3 days.Q: What packaging options do you offer for export?
A: Tubes are packed in bundles with steel strapping, protected by waterproof paper or plastic wrapping. For sea freight, we use wooden crates or pallets as needed. Custom packaging (e.g., shrink wrap, individual sleeves) is available on request.
For any further questions, please do not hesitate to reach out to our professional team. We are here to support your business growth with reliable products and services.
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