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Help CenterAluminum Coil 3003 O Temper 0.3mm-0.8mm For LED Channel Letter Coil Precision
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. As a newly established enterprise in 2025 with an annual export value ranging from US$50 million to US$100 million, we are dedicated to providing premium aluminum coil solutions for the global signage industry. Our Aluminum Coil 3003 O Temper 0.3mm-0.8mm is specifically engineered for LED channel letter fabrication, offering the perfect balance of precision, formability, and durability. Manufactured under strict ISO9001 quality management systems, each coil is processed with advanced technology to ensure consistent thickness and excellent surface finish, making it the ideal choice for high-end channel letter production.
Our 3003 O temper aluminum coil is characterized by its soft, annealed state, which provides superior bendability and workability for intricate channel letter geometries. The 3003 alloy, known for its excellent corrosion resistance and moderate strength, is widely adopted in outdoor signage applications. With thicknesses ranging from 0.3mm to 0.8mm, our coils meet the diverse requirements of LED channel letter profiles, from thin return faces to structural backings. Below we detail the key features and specifications that make this product stand out.
Key Features & Benefits
- Precision Thickness Control: Each coil is produced with a thickness tolerance of ±0.02mm, ensuring consistent profile dimensions for LED channel letters.
- Excellent Formability: The O temper (fully annealed) condition allows for easy bending, curving, and stamping without cracking or spring-back, reducing production waste.
- Superior Surface Quality: Mill finish surface is smooth and free of scratches, oil stains, or rolling marks, providing a clean base for painting or adhesive application.
- Corrosion Resistance: 3003 alloy offers outstanding resistance to atmospheric corrosion, ideal for outdoor signage exposed to rain, UV, and humidity.
- Lightweight & Durable: Aluminum’s low density reduces overall weight of channel letters while maintaining structural integrity, simplifying installation.
- Customizable Width & Coil Weight: Available in various widths (typically 1000mm-2000mm) and coil weights up to 3 tons per coil, tailored to your production needs.
- ISO9001 Certified Production: Our manufacturing process is ISO9001:2015 certified, guaranteeing consistent quality from raw material to final delivery.
- Global Export Experience: Serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we understand international packaging and shipping requirements.
Technical Specifications
| Parameter | Value |
|---|---|
| Alloy | 3003 |
| Temper | O (Annealed) |
| Thickness Range | 0.3 mm – 0.8 mm |
| Thickness Tolerance | ±0.02 mm |
| Width Range | 1000 mm – 2000 mm (customizable) |
| Coil Inner Diameter | 508 mm / 610 mm (optional) |
| Tensile Strength | 95–130 MPa (typical for O temper) |
| Elongation | ≥ 20% |
| Surface Finish | Mill Finish (smooth, clean) |
| Packaging | Export standard: wooden pallet, steel frame, waterproof paper |
The 3003 O temper aluminum coil is specifically designed for the LED channel letter industry. Its soft temper allows for easy bending into sharp corners and curves required for letter profiles, while maintaining enough rigidity to hold shape after forming. The precise thickness control ensures that the return faces of channel letters have uniform depth, which is critical for consistent LED light diffusion and visual appearance. Additionally, the smooth mill finish provides an excellent substrate for painting or powder coating, enabling vibrant colors and long-lasting outdoor performance.
Compared to H14 or H24 temper, the O temper offers maximum formability, making it the preferred choice for fabricators who need to create complex shapes without cracking. For applications requiring slightly higher strength, alternative temper can be discussed upon request. Our team is committed to providing technical support to help you select the best material for your specific signage project.
Trust & Reliability
As a company with an annual export value exceeding US$50 million, Hemaokang Steel has established a robust supply chain and quality control system. Our 51–100 experienced employees work diligently to ensure every coil meets the highest standards. We are ISO9001:2015 certified, which means our processes are continuously monitored and improved. Our products have been exported to diverse markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more, demonstrating our ability to meet international quality and packaging requirements. Each shipment is carefully inspected and packed to prevent damage during transit. We also offer flexible order quantities, from trial orders to bulk containers, to accommodate businesses of all sizes.
Choosing Hemaokang Steel means partnering with a reliable supplier who understands the unique demands of the LED signage industry. We invite you to contact us for a quote, sample, or technical consultation. Let us support your channel letter production with precision aluminum coils that deliver consistent results.
Frequently Asked Questions (FAQ)
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Q: Why is O temper preferred for LED channel letter coils?
A: O temper (fully annealed) provides the softest state of 3003 aluminum, offering maximum bendability and formability. This allows fabricators to create sharp corners, curves, and tight radii without cracking or splitting, which is essential for intricate letter shapes. -
Q: What is the thickness tolerance of your coils?
A: Our thickness tolerance is ±0.02 mm, ensuring consistent material thickness across the entire coil. This precision is critical for maintaining uniform depth of channel letter returns and achieving consistent LED light output. -
Q: Can you supply custom widths other than the standard range?
A: Yes, we can customize the width according to your specific requirements. Common widths are 1000mm, 1250mm, 1500mm, and 2000mm, but we can slit to narrower widths (e.g., 500mm, 800mm) upon request. Please contact us with your desired dimensions. -
Q: How is the coil packaged to prevent damage during shipping?
A: Our export packaging includes: inner waterproof paper, plastic film wrapping, and outer steel frame or wooden pallet with edge protectors. Coils are securely strapped to prevent shifting. This packaging is designed to withstand long-distance sea and land transportation. -
Q: Is the surface suitable for direct painting or powder coating?
A: Yes, the mill finish surface is clean and smooth, providing an excellent base for paint adhesion. For best results, we recommend a light degreasing and primer application before painting. Our surface is free of oil and contaminants. -
Q: What is the typical lead time for an order?
A: Lead time is typically 15–30 days depending on the order quantity and specific customization. For standard sizes and stock items, we can ship within 10–15 days. Please contact our sales team for accurate lead time based on your order. -
Q: Do you offer samples for testing before bulk order?
A: Yes, we provide free samples (shipping cost may apply) for you to evaluate the material quality, thickness, and formability. We encourage customers to test the coil in their production line to ensure it meets their specific requirements. -
Q: Which markets do you currently serve?
A: We export to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. Our team has experience dealing with various international shipping and documentation requirements.
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