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Help CenterAluminum Coil 3004 H24 for Building Curtain Walls 0.7mm-1.5mm Thickness
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer Aluminum Coil 3004 H24 for Building Curtain Walls in thicknesses ranging from 0.7mm to 1.5mm. As a trusted manufacturer with annual export value exceeding US$50 million, we combine advanced production lines with rigorous quality control to deliver coils that meet the highest standards of flatness, surface finish, and mechanical properties. Our 3004 H24 aluminum coil is specifically engineered for curtain wall applications, providing an optimal balance of strength, formability, and corrosion resistance that architects and contractors demand for modern building facades.
This product is designed to withstand the rigors of exterior use while offering excellent workability for bending, roll-forming, and stamping. With a temper of H24 (half-hard, strain-hardened and partially annealed), our coil delivers consistent hardness and elongation, ensuring reliable performance in both flat panel and complex geometric profiles. Whether you need a standard mill finish or a customized coating, Hemaokang can tailor the surface treatment to your project requirements.
Key Features & Technical Specifications
- Alloy 3004: A manganese-magnesium alloy known for higher strength than 3003, excellent corrosion resistance, and good weldability — ideal for structural curtain wall panels.
- Temper H24: Strain-hardened and partially annealed to achieve a moderate strength level (typical tensile strength 190-240 MPa) with good elongation for forming operations.
- Thickness Range: 0.7mm to 1.5mm, with tight tolerance (±0.02mm) to ensure uniform panel thickness and consistent appearance.
- Width Options: Available from 1000mm to 2000mm, or custom widths upon request, to minimize waste and optimize material utilization.
- Surface Finish: Mill finish, stucco embossed, polyester coated, PVDF coated, or anodized — all customizable to meet specific aesthetic and durability needs.
- Flatness Control: Strictly controlled to avoid edge waves, center buckles, or coil break, ensuring smooth unwinding and processing.
- Corrosion Resistance: Naturally resistant to atmospheric corrosion, further enhanced by optional protective coatings for coastal or industrial environments.
- Recyclability: 100% recyclable, supporting green building certifications and sustainable construction practices.
| Property | Typical Value |
| Tensile Strength (MPa) | 220 - 260 |
| Yield Strength (MPa) | 190 - 240 |
| Elongation (%) | ≥ 4 |
| Hardness (H24) | Half-hard |
| Density (g/cm³) | 2.72 |
| Coil Weight (max) | 5 tons per coil |
Why Choose Hemaokang's 3004 H24 Aluminum Coil?
Our aluminum coil is manufactured using state-of-the-art continuous casting and cold rolling processes, ensuring precise thickness control and a defect-free surface. Each coil undergoes strict inspection including pinhole detection, thickness gauging, and mechanical testing in our in-house laboratory. The result is a product that consistently meets the demands of curtain wall fabricators who require reliable material for large-scale projects.
- Formability Excellence: The H24 temper provides an ideal combination of strength and ductility, allowing easy bending, punching, and roll-forming without cracking.
- Consistent Color & Texture: When coated, our advanced chemical pretreatment and painting line ensure uniform color, gloss, and adhesion across the entire coil.
- Lightweight Strength: At just 2.72 g/cm³, aluminum 3004 offers high strength-to-weight ratio, reducing dead load on building structures.
- Long Service Life: With proper coating, the coil can withstand UV exposure, moisture, and temperature fluctuations for decades with minimal maintenance.
- Custom Packaging: Coils are packed with moisture-proof paper, plastic film, and steel bundling to prevent damage during sea or land transport.
For curtain wall applications, the ability to achieve sharp bends and complex profiles is critical. Our 3004 H24 coil has been tested in multiple projects globally, from high-rise office towers in Southeast Asia to shopping malls in Eastern Europe. The material's excellent flatness and consistent thickness ensure that panels fit together seamlessly, reducing installation time and waste.
Frequently Asked Questions
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Q: What is the typical lead time for 3004 H24 aluminum coil?
A: For standard thicknesses (0.7mm-1.5mm) and widths, lead time is approximately 15-25 days after order confirmation. Custom sizes or coatings may require 25-35 days. -
Q: Can you provide a mill certificate or test report?
A: Yes, we provide a full mill test certificate (MTC) with each batch, showing chemical composition, mechanical properties, and dimensional tolerance results. -
Q: What is the minimum order quantity (MOQ)?
A: For standard products, MOQ is 5 tons per size. For trial orders, we can accommodate 1-2 tons upon request. -
Q: Do you offer coated coils? What coating options are available?
A: Yes, we offer polyester (PE), polyvinylidene fluoride (PVDF), and epoxy coatings in a wide range of RAL colors. Stucco embossed and anodized finishes are also available. -
Q: How is the coil packaged for export?
A: Each coil is wrapped with anti-corrosion paper, polypropylene film, and then steel-strapped on wooden pallets or steel frames. Outer packaging can be customized with labels and barcodes. -
Q: Is this aluminum coil suitable for seismic zones?
A: Yes, the combination of strength and ductility in 3004 H24 makes it suitable for curtain wall systems designed to accommodate building movement, including seismic conditions. -
Q: Can you supply coils with a width greater than 2000mm?
A: Our standard production width is up to 2000mm. For widths exceeding this, please contact our sales team to discuss special slitting options. -
Q: What is the difference between 3004 and 3003 aluminum for curtain walls?
A: 3004 has higher strength (about 20% more) than 3003 due to the addition of magnesium. It is often preferred for taller buildings or areas with higher wind loads, while 3003 may be used for lower-rise structures.
Trust Hemaokang Steel — Your Reliable Partner for Building Materials
Since our establishment in 2025, Hemaokang Steel (Shandong) Co., Ltd. has rapidly grown into a global supplier with annual export value between US$50 million and US$100 million. Our team of 51-100 skilled professionals is dedicated to providing high-quality aluminum products, backed by ISO9001 certification and a rigorous quality management system. We serve customers across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. With our strategic location in Liaocheng, Shandong, we benefit from convenient logistics and a mature industrial supply chain.
Every coil we ship is supported by comprehensive after-sales service, including technical support, sample testing, and responsive communication. We invite you to experience the difference that precision manufacturing and customer-centric service can make. Contact us today for a quote or to request free samples. Choose Hemaokang for your curtain wall project — where quality meets reliability.
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