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Help CenterLarge Diameter Aluminum Hollow Pipe 6063-T5 300mm Outer Diameter for Ship Deck Handrails & Marine Structural Frames
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner in high-performance aluminum solutions. Our Large Diameter Aluminum Hollow Pipe 6063-T5 with 300mm Outer Diameter is specifically engineered for demanding marine environments such as ship deck handrails and marine structural frames. With over US$50 million in annual export value and ISO9001 certification, we deliver precision, durability, and reliability that international shipbuilders and marine engineers rely on.
This pipe combines the excellent extrudability of 6063 alloy with the T5 temper, offering a perfect balance of strength, corrosion resistance, and weldability. The 300mm outer diameter provides exceptional structural integrity for heavy-duty applications, while the hollow design reduces weight without compromising load-bearing capacity. Whether you need long runs for deck railings or robust frames for offshore platforms, this product is designed to withstand harsh saltwater conditions and dynamic loads.
Key Features & Technical Specifications
- High Strength-to-Weight Ratio: 6063-T5 alloy offers tensile strength of up to 205 MPa, ideal for marine structures where weight reduction is critical.
- Superior Corrosion Resistance: Naturally resistant to seawater and atmospheric corrosion, with optional anodized or powder-coated finishes for extended service life.
- Excellent Weldability & Formability: Can be easily welded, bent, or machined to meet custom design requirements.
- Precision Extrusion: Manufactured with strict dimensional tolerances (±0.5mm on diameter) to ensure perfect fit and alignment during installation.
- Large Diameter (300mm OD): Provides high moment of inertia for stiffness and load-bearing performance in handrails, guardrails, and structural frames.
- Customizable Lengths: Standard lengths from 3m to 6m, with custom lengths available upon request.
- ISO9001 Certified Quality: Every batch is tested for mechanical properties, chemical composition, and dimensional accuracy.
| Parameter | Value |
|---|---|
| Alloy | 6063-T5 |
| Outer Diameter | 300 mm |
| Wall Thickness | 3.0 mm – 12.0 mm (customizable) |
| Length | 3,000 – 6,000 mm (custom) |
| Yield Strength (min) | 145 MPa |
| Ultimate Tensile Strength (min) | 205 MPa |
| Elongation | ≥ 8% |
| Surface Finish | Mill finish, anodized, or powder coated (optional) |
Benefits for Marine Applications
- Enhanced Safety: The large diameter provides a sturdy grip for handrails, reducing the risk of falls on wet decks.
- Long Service Life: Corrosion resistance minimizes maintenance costs and extends the lifespan of marine structures.
- Lightweight Construction: Aluminum is one-third the weight of steel, allowing easier handling and installation, as well as improving vessel fuel efficiency.
- Design Flexibility: Can be easily cut, welded, and integrated with other marine components such as stanchions, bases, and fittings.
- Eco-Friendly: 100% recyclable aluminum helps shipbuilders meet sustainability goals.
Our rigorous quality control process ensures that every pipe meets the highest standards. We perform chemical composition analysis, tensile testing, and dimensional inspection on each batch. The 6063-T5 alloy is also widely recognized for its excellent surface finish, making it suitable for visible architectural applications where aesthetics matter.
Why Choose Hemaokang Steel?
Founded in 2025, Hemaokang Steel (Shandong) Co., Ltd. has quickly grown into a global supplier with annual exports exceeding US$50 million. Our team of 51-100 experienced professionals is dedicated to delivering premium aluminum products to markets across North America, South America, Europe, Asia, Africa, and Oceania. We hold ISO9001 certification, which guarantees consistent quality management from raw material sourcing to final delivery.
We understand that marine projects require not only high-quality materials but also reliable supply chains. We maintain ample stock of common sizes and can expedite custom orders to meet tight deadlines. Our responsive customer service team provides technical support, documentation, and after-sales assistance to ensure your project runs smoothly.
Experience the Hemaokang difference – where quality meets performance. Contact us today for a quote or to discuss your specific requirements. We are ready to support your next shipbuilding or marine infrastructure project with our large diameter aluminum hollow pipes.
Frequently Asked Questions
Q1: What is the standard wall thickness for the 300mm OD pipe?
A: The wall thickness is customizable. Common options range from 3mm to 12mm. Please specify your required thickness when ordering.
Q2: Can this pipe be used for underwater structural frames?
A: Yes, the 6063-T5 alloy offers good corrosion resistance in seawater. However, for continuous underwater immersion, we recommend additional protective coatings such as anodizing or powder coating.
Q3: Do you provide cutting services or pre-drilled holes?
A: Yes, we can cut pipes to exact lengths and provide custom machining (drilling, notching, etc.) upon request. Please contact us with your specific requirements.
Q4: What is the minimum order quantity (MOQ)?
A: Our MOQ for standard sizes is typically 100 meters. For custom sizes or special finishes, MOQ may vary. Please inquire for details.
Q5: How long does delivery take?
A: Standard production takes 15-20 working days after order confirmation. Express delivery options are available for urgent orders.
Q6: Is this pipe suitable for welding with other aluminum alloys?
A: Yes, 6063-T5 can be welded using common methods (MIG, TIG). It is compatible with filler metals such as ER4043 or ER5356. We recommend consulting a welding specialist for your specific joint design.
Q7: Do you have any certification for marine applications?
A: Our factory is ISO9001 certified, which covers our quality management system. For specific marine classification society approvals (e.g., DNV, ABS, Lloyd's), we can provide materials with mill test certificates and assist in obtaining third-party certification if required.
Q8: What surface treatments are available?
A: We offer mill finish, clear anodizing (AA10/AA15), and powder coating in various colors (customizable). Anodizing provides enhanced corrosion protection and a uniform appearance.
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