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Help CenterPrepainted Steel Coil ASTM A653 Grade 80 With 0.30mm Thickness for Corrugated Sheet
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our Prepainted Steel Coil ASTM A653 Grade 80 with 0.30mm Thickness for Corrugated Sheet. As a reliable manufacturer with an annual export value of US$50 million to US$100 million and a dedicated team of 51–100 employees, we deliver high-quality steel products tailored to global markets. This prepainted coil combines superior strength, excellent corrosion resistance, and aesthetic versatility, making it an ideal choice for corrugated roofing and cladding applications. With our ISO9001-certified production processes and shipment from Qingdao Port, we ensure consistent quality and timely delivery to customers worldwide.
Our Prepainted Steel Coil is engineered to meet the rigorous demands of the construction industry. The base material conforms to ASTM A653 Grade 80, offering a minimum yield strength of 80 ksi (550 MPa), which provides exceptional structural integrity for corrugated sheets. The 0.30mm thickness balances lightweight handling with durability, reducing material costs while maintaining performance. The prepainted coating, available in a wide range of colors, enhances UV resistance and aesthetic appeal, ensuring long-lasting beauty even in harsh environments.
Key Features and Benefits:
- High Strength-to-Weight Ratio: Grade 80 steel allows thinner gauges without compromising load-bearing capacity, ideal for corrugated sheet profiles.
- Excellent Corrosion Resistance: The galvanized coating (per ASTM A653) combined with a premium paint system provides protection against rust, moisture, and chemical exposure.
- Versatile Aesthetics: Choose from a palette of standard and custom colors, including RAL codes, to match architectural requirements.
- Easy Fabrication: The coil can be roll-formed, stamped, or cut with minimal waste, reducing production time for corrugated sheet manufacturers.
- Consistent Thickness Tolerance: Our precision rolling ensures uniform 0.30mm thickness within ±0.02mm, guaranteeing reliable forming results.
- Eco-Friendly Coating: Water-based paints and low-VOC options are available upon request, supporting sustainable building practices.
Technical Specifications (Typical Values):
| Parameter | Value |
|---|---|
| Standard | ASTM A653 |
| Grade | 80 (SS Grade 80) |
| Thickness (Nominal) | 0.30 mm |
| Width Range | 600 – 1250 mm (customizable) |
| Coating Type | Hot-dip galvanized (Z275 or as required) + Prepainted |
| Paint System | Polyester, PVDF, or SMP (optional) |
| Yield Strength (min) | 550 MPa (80 ksi) |
| Tensile Strength (min) | 560 MPa (81 ksi) |
| Elongation (min) | 12% (in 2 inches) |
| Coil Inner Diameter | 508 mm or 610 mm (optional) |
| Coil Weight | 3 – 10 tons (customizable) |
Detailed Product Advantages:
- Cost-Effective Performance: The 0.30mm thickness reduces material usage by up to 20% compared to conventional 0.40mm coils, while Grade 80 strength ensures the same load capacity. This translates to significant savings for corrugated sheet producers.
- Advanced Paint Adhesion: Our chemical treatment and primer layers guarantee excellent paint adhesion, preventing peeling, chalking, or fading for over 15 years in normal environments.
- Customizable Widths and Colors: We offer slitting services to meet exact width requirements, and a color library of over 200 standard shades. Custom color matching is also available.
- Global Logistics Support: Shipped from Qingdao Port, one of China’s busiest ports, with flexible container or break-bulk options. We provide full documentation, including mill test certificates and ISO9001 compliance reports.
- Rigorous Quality Control: Every coil undergoes thickness measurement, paint thickness testing, hardness checks, and visual inspection before packaging. Our QC team ensures strict adherence to ASTM A653 standards.
Trusted by Global Markets: Hemaokang Steel has established a strong presence in 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 Chinese market. Our annual export value of US$50 million–US$100 million reflects the trust of hundreds of clients worldwide. We are committed to long-term partnerships, offering competitive pricing without compromising quality.
Frequently Asked Questions (FAQ):
-
Q: What is the minimum order quantity (MOQ) for this prepainted coil?
A: Our standard MOQ is 20 tons per size and color. However, for trial orders or specific projects, we can negotiate smaller quantities. Please contact our sales team for details. -
Q: Can this coil be used for both roofing and wall cladding?
A: Yes, the 0.30mm thickness and Grade 80 strength are suitable for both corrugated roofing and wall panels. The material also works well for other profiles like trapezoidal or sine-wave sheets. -
Q: What paint systems are available, and how durable are they?
A: We offer polyester (standard), PVDF (high durability), and SMP (silicone modified polyester) paint systems. PVDF provides excellent UV resistance and color retention, typically lasting 20+ years. Polyester is cost-effective with 10–15 years of performance. -
Q: How do you ensure the coil does not get scratched during shipping?
A: Each coil is wrapped with VCI paper, waterproof film, and metal edge protectors, then packed on steel skids or in wooden crates. We use seaworthy packing materials to prevent damage during long-distance transportation. -
Q: Does the coil come with a certificate of compliance?
A: Yes, each shipment includes a mill test certificate (MTC) that confirms the material meets ASTM A653 Grade 80 requirements, along with our ISO9001 certification. -
Q: What is the lead time for production?
A: For standard sizes and colors, production takes 15–20 days after order confirmation. Custom colors or special widths may require 25–30 days. We can also arrange fast delivery for urgent orders. -
Q: Is the coating lead-free and environmentally friendly?
A: Yes, our prepainted coatings are RoHS compliant and free from heavy metals. We also offer low-VOC paint options for green building projects. Please specify your requirements when ordering. -
Q: How can I request a sample before placing a bulk order?
A: Samples are available for a nominal fee, which is refundable for first bulk orders. We can provide a 300mm x 300mm sheet with the actual coating and color for testing. Contact us with your details.
Why Choose Hemaokang Steel?
With a dedicated team of over 50 professionals, ISO9001 certification, and a strong export track record, we guarantee reliable supply chain management. Our state-of-the-art production lines in Liaocheng, Shandong, ensure consistent quality, while our experienced sales team provides personalized service. Whether you need a standard 0.30mm coil or a custom specification, we are your trusted partner for prepainted steel products. Contact us today for a quote or technical consultation – we look forward to supporting your next project.
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