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Help CenterWelded Aluminum Tube 6061-T6 50mm OD for Structural Frame Manufacturing High Strength
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our welded aluminum tube 6061-T6, an exceptional structural material designed for demanding frame manufacturing. As a newly established yet rapidly growing manufacturer with an annual export value of USD 50-100 million, we have built our reputation on supplying precision-engineered aluminum products that meet global quality standards. This 50mm OD welded aluminum tube combines the versatility of welded construction with the high strength of the 6061-T6 temper, making it an ideal solution for engineers and fabricators who demand reliability, weight reduction, and structural integrity in every project.
Our company operates from Liaocheng, Shandong, a region known for its advanced metal processing industry, and serves a diverse clientele across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. Every welded aluminum tube is produced under a rigorous ISO9001 quality management system, ensuring a consistently high-quality product batch after batch. We understand that structural frames require more than just material – they demand predictable mechanical properties, precise dimensions, and cost-effective procurement. That is what we deliver.
Outstanding Mechanical Properties of 6061-T6 Aluminum Alloy
The 6061-T6 temper is one of the most widely used and trusted aluminum alloys in the structural industry, valued for its excellent combination of strength, weldability, and corrosion resistance. When manufactured as a welded tube with a 50mm outer diameter, this product provides an excellent balance between weight savings and load-bearing capability – a particular advantage in applications where steel would be too heavy or prone to corrosion.
- High tensile strength: The T6 temper delivers a minimum tensile strength of 290 MPa (42,000 psi), which is significantly higher than non-heat-treated aluminum alloys.
- Excellent yield strength: Yield strength of 240 MPa (35,000 psi) ensures that frames retain their shape under sustained loads without permanent deformation.
- Good elongation: 8-10% elongation at break contributes to ductility, allowing for bending and forming during frame assembly.
- Corrosion resistance: Natural alloy composition provides good resistance to atmospheric corrosion, with improved performance when anodized.
- Lightweight: Density of 2.70 g/cm³ makes this tube approximately 65% lighter than comparable steel tubes, reducing overall frame weight and transportation costs.
- Weldability: Despite being a welded tube, the base metal remains highly weldable with standard TIG or MIG techniques, allowing for easy field modifications.
Precision Welded Tube Construction
Our welded aluminum tubes are manufactured using advanced continuous welding technology, which produces a consistent longitudinal weld seam with minimal heat-affected zone. This process ensures that the tube maintains uniform wall thickness throughout its length, providing predictable structural performance in frame applications. We also offer welded tubes with internal weld seam removal – a crucial option for applications where the internal surface must be clean and smooth, such as in hydraulic systems or precision frame assemblies.
Unlike seamless tubes, our welded aluminum tube 6061-T6 offers a more economical solution while still meeting the stringent requirements for structural frames. With proper welding parameters and post-weld heat treatment, the welded tube achieves mechanical properties that are comparable to seamless in most non-critical structural applications. This cost advantage is directly passed to you, allowing you to minimize material costs without sacrificing reliability.
Technical Specifications at a Glance
| Parameter | Value | Remark |
|---|---|---|
| Outer Diameter | 50 mm (1.97 inch) | 0/-0.1mm tolerance |
| Wall Thickness | 2.0 - 6.0 mm | Custom optional |
| Alloy | 6061-T6 | Satisfies ASTM B221M |
| Tensile Strength | ≥ 290 MPa | T6 temper |
| Yield Strength | ≥ 240 MPa | T6 temper |
| Length | 1 - 6 meters | Straightness ≤ 1.5 mm/m |
| Weld Line | Longitudinal seam | Weld trim optional |
Key Applications for Structural Frame Manufacturing
The versatility of this welded aluminum tube 6061-T6 50mm OD makes it a preferred choice across a wide range of frame manufacturing sectors. Its high strength-to-weight ratio and excellent machinability allow fabricators to create complex structures with confidence.
- Industrial machinery frames: Perfect for building equipment bases, support columns, and gantry structures where stability and lightweight are important.
- Automotive and transportation racks: Used in roof racks, cargo supports, and interior framing where corrosion resistance and load bearing are critical.
- Architectural railing and gates: The clean, professional appearance of the mill finish or anodized surface enhances the visual quality of railings, gates, and facades.
- Solar panel mounting structures: The natural corrosion resistance of 6061 alloy makes it an ideal choice for outdoor installations exposed to harsh weather conditions.
- Furniture and display systems: Lightweight yet rigid characteristics allow for stylish and durable integration in modern furniture designs.
- Warehouse shelving and storage racks: Combines excellent strength with easy handling during transport and assembly.
Customization and Surface Treatment Options
We understand that every frame manufacturing project has unique specification requirements. Therefore, we offer a range of customization options to help you get the exact tube that fits your production line. Our engineering team can adjust wall thickness, choose optimal length cutting, and even arrange special packaging for long-distance sea freight.
Available surface treatments include:
- Mill finish: Standard clean surface ready for further processing, suitable for most industrial applications.
- Anodized finish: Increases surface hardness and provides a decorative layer; available in silver, black, bronze, or custom colors – great for exposed architectural frames.
- Powder coating: Durable and fade-resistant colors, perfect for outdoor furniture or equipment requiring a highly aesthetic appearance.
- Cutting tolerance: Precision saw-cutting available with tolerance of ±0.5mm, ensuring clean edges for immediate assembly.
- De-burring and chamfering: Optional end-chamfering eliminates sharp edges, reducing the risk of injuries during handling and simplifying welding preparation.
Why Choose Hemaokang Steel as Your Tube Supplier?
With an annual export value ranging from USD 50 million to USD 100 million, our company has demonstrated a strong capability in serving international clients. Our team of 51-100 employees is dedicated to quality control at every stage, from raw material sourcing to finished product inspection. We have shipped large volumes of aluminum products to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe – and we understand the importance of prompt delivery to ports like Qingdao to meet your production schedules.
We are committed to total customer satisfaction through transparent communication, competitive pricing, and consistent product quality. Whether you need a one-time shipment for a specific project or a year-round supply agreement, our production capacity and logistics network allow us to scale accordingly. As a customer-oriented supplier, we also provide sample materials so that you can verify the product quality in your own facilities before placing bulk orders.
Quality Assurance and ISO9001 Commitment
Our factory is certified to ISO9001, which means every batch of welded aluminum tube 6061-T6 goes through systematic quality checks. From chemical composition analysis to tensile testing and dimensional verification, we maintain a documented quality management system that ensures traceability and consistent output. We can provide a mill test certificate, a material certificate, and a packing list with each shipment, giving you full confidence in the product you receive.
Aluminum is a sustainable and infinitely recyclable material, and we also participate in responsible production practices. By choosing our welded aluminum tubes, you are making an environmentally sound decision that contributes to a circular economy. Let us help you build frames and structures that are strong, light, and enduring.
Contact Us Today
Step up your structural frame manufacturing with a tube you can rely on every day. Our sales team in Shandong is ready to provide you with a tailored quotation, technical advice, and fast delivery arrangements from Qingdao port. Whether you need a small trial order or a full container load, we are equipped to serve you efficiently and professionally. Contact Hemaokang Steel today – we look forward to becoming your long-term aluminum tube partner.
Frequently Asked Questions
Q1: What is the difference between welded 6061-T6 tube and seamless 6061-T6 tube?
A: Welded tube is produced by forming a flat aluminum strip into a tube shape and welding the seam longitudinally. Seamless tube is produced by extruding or piercing a solid billet without any welding line. For most structural frame applications, welded tube offers comparable strength and stiffness when properly welded and heat-treated, while being more cost-effective. The weld seam is inspected and tested to ensure integrity. If your application requires extremely high internal pressure or resistance to fatigue at the weld seam, a seamless option is available upon special request.
Q2: Can you provide the tube in custom lengths?
A: Absolutely. We supply standard lengths of 3m, 4m, or 6m, but can also cut to your specified lengths with a tolerance of ±0.5mm. For high-volume orders, we can optimize cutting plans to minimize waste. Kindly inform your required lengths in your inquiry, and we will confirm the cutting schedule accordingly.
Q3: Is there a warranty or after-sales support for the aluminum tube?
A: We follow the ISO9001 quality management system and perform strict inspections before shipping. If you discover any quality issues after receiving the goods, please send us photographic evidence and a sample. We will review the issue and, if confirmed as our production fault, provide replacement or compensation in accordance with our standard terms. Our after-sales team is also available to answer installation or welding questions by email or video call.
Q4: What is the minimum order quantity (MOQ)?
A: Our standard MOQ is 500 kilograms for common sizes. However, for sample testing or trial projects, we can supply smaller quantities, typically 1-5 pieces, to allow you to validate the quality and performance. Sample orders are subject to a higher unit price and shipping cost, but the experience will help you make an informed bulk purchase decision.
Q5: How do you pack and protect the tubes for sea transport?
A: Tubes are packed in bundles with protective paper or plastic film between layers. Each bundle is secured with steel strapping and then placed into a 20ft or 40ft container. For anodized or powder-coated surfaces, we use additional foam and corrugated board protection to prevent scratches and dents. End caps are provided for each bundle to prevent entry of water and debris during shipping.
Q6: Can the 50mm OD welded tube be bent or formed after welding?
A: Yes, because 6061-T6 is a heat-treatable alloy, it exhibits limited but workable ductility in the T6 condition. For simple bending with a large radius, you can perform cold bending, but for tight radius bending or significant forming, it is recommended to use it in T4 condition and then apply T6 heat treatment after forming. We can supply the tube in T4 or T6 condition based on your manufacturing process requirements. We advise testing a sample to determine the optimal approach for your specific frame design.
Q7: Do you provide a material test certificate?
A: Yes, we provide an EN 10204 3.1 type mill test certificate upon request. This document confirms the chemical composition and mechanical properties, including tensile strength, yield strength, and elongation. The certificate is issued based on batch testing, ensuring full traceability. This can help your company's incoming material inspections and end-customer documentation requirements.
Q8: How quickly can you ship after receipt of purchase order?
A: For stock items, we typically arrange loading within 5-7 days after receiving the order and payment. For customized specifications, the lead time is approximately 15-20 days, depending on the quantity and surface treatment. We will state the exact delivery schedule in the sales contract, and since we ship from Qingdao, one of China's largest ports, we are experienced in coordinating with major shipping lines to meet your deadline.
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