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Help Center0.3mm-1.0mm RAL 9005 Black Prepainted Galvanized Steel Coil G550 AZ150 Standard Compliant
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Hemaokang Steel (Shandong) Co., Ltd. is proud to present our premium 0.3mm-1.0mm RAL 9005 Black Prepainted Galvanized Steel Coil, engineered to meet the highest standards of durability, aesthetics, and performance. With a robust G550 steel grade and AZ150 aluminum-zinc coating, this product delivers exceptional corrosion resistance and structural strength, making it ideal for demanding applications in roofing, wall cladding, and industrial panels. Our state-of-the-art production lines ensure consistent thickness, uniform color, and tight tolerances, backed by our commitment to quality and customer satisfaction.
This black prepainted coil combines the advantages of galvanized steel with a durable color coating, offering an attractive finish that withstands harsh environmental conditions. Whether you require material for architectural facades, storage systems, or automotive components, our coil provides reliable performance and long service life. As a manufacturer with ISO9001 certification and annual export value exceeding US$50 million, we guarantee reliable supply and professional service.
Key Features & Technical Specifications
- Thickness Range: 0.3mm to 1.0mm, with precise tolerance control (±0.02mm) for consistent quality.
- Color: RAL 9005 Black – deep, uniform gloss with excellent UV resistance and color retention.
- Steel Grade: G550 (high-strength low-alloy) provides superior tensile strength (≥550 MPa) for structural applications.
- Coating: AZ150 aluminum-zinc alloy coating (55% Al, 43.5% Zn, 1.5% Si) offers 2-4 times better corrosion resistance than traditional galvanized coatings.
- Prepainted Finish: Multi-layer coating system (primer + topcoat) applied via continuous coil coating process, ensuring excellent adhesion, flexibility, and weather resistance.
- Standard Compliance: Manufactured in accordance with international standards such as ASTM A755, EN 10169, JIS G3312, with optional third-party inspection available.
- Customization: Width (900-1250mm), inner diameter (508/610mm), and coating type (polyester, SMP, PVDF) can be tailored to your requirements.
- Packaging: Standard seaworthy export packing with waterproof paper, steel bands, and plywood edge protection to prevent damage during transit.
Product Parameters (Typical Values)
| Parameter | Value |
| Thickness | 0.3 – 1.0 mm |
| Coating Mass (AZ) | 150 g/m² (both sides) |
| Tensile Strength | ≥ 550 MPa (G550) |
| Yield Strength | ≥ 550 MPa |
| Elongation | ≥ 2% (typical) |
| Gloss Level (60°) | 20-40% (customizable) |
| Coil Weight | 3 – 8 tons per coil (customizable) |
Advantages & Customer Benefits
- Outstanding Corrosion Protection: The AZ150 coating provides sacrificial protection, ensuring long service life even in coastal or industrial environments.
- Excellent Formability: G550 grade steel allows for bending, profiling, and stamping without cracking the paint layer, making it suitable for complex shapes.
- Low Maintenance: The durable paint finish resists fading, chalking, and peeling, reducing the need for repainting or repairs.
- Cost-Effective: Compared to post-painting or stainless steel, prepainted coils offer significant savings in both material and labor costs.
- Environmentally Friendly: Our production process is energy-efficient and uses eco-friendly paints, with recyclable steel content.
- Global Availability: Shipped from Qingdao port with flexible logistics, serving markets across North America, Europe, Asia, Africa, and Oceania.
At Hemaokang Steel, we prioritize quality control from raw material selection to final packaging. Our factory boasts a team of 51-100 experienced professionals, and we maintain annual export volume of US$50-100 million, demonstrating our capability to handle large-scale orders with consistent quality. We have successfully supplied prepainted steel coils to customers in over 20 countries, receiving positive feedback on product performance and delivery reliability.
We invite you to experience the excellence of our RAL 9005 Black Prepainted Galvanized Steel Coil. Whether you need a trial order for a new project or a bulk supply for ongoing production, our sales team is ready to provide samples, technical data sheets, and competitive pricing. Contact us today to discuss your requirements and start a partnership built on trust and quality.
Frequently Asked Questions (FAQ)
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What is the difference between AZ150 and regular galvanized coating?
AZ150 is an aluminum-zinc alloy coating (55% Al, 43.5% Zn) that offers 2-4 times higher corrosion resistance than traditional hot-dip galvanized steel (Zinc only). It also provides better heat reflectivity and cut-edge protection. -
Can this coil be used for outdoor roofing in coastal areas?
Yes, the combination of G550 high-strength steel and AZ150 coating makes it highly resistant to salt spray and moisture, ideal for coastal environments. An additional PVDF or SMP coating can be applied for enhanced UV resistance. -
What is the typical lead time for production?
Standard lead time is 15-25 days after order confirmation, depending on the quantity and customization. We can expedite urgent orders based on stock availability. -
Do you provide samples before bulk order?
Yes, we offer free samples (A4 size or 100mm×100mm) for quality evaluation. The buyer pays shipping costs, which are waived for confirmed orders. -
What are the packaging and shipping details?
Each coil is wrapped in waterproof paper, secured with steel strapping, and protected with plywood edges. Shipment is from Qingdao port via container or break-bulk vessel. -
Is the color RAL 9005 exactly black, or does it have a slight tint?
RAL 9005 is a deep jet black with no visible tint. Our color consistency is ensured by spectrophotometer testing during production. -
Can you supply coils with non-standard widths or thicknesses?
Absolutely. We can customize width from 600mm to 1500mm and thickness from 0.25mm to 1.2mm, subject to MOQ requirements. -
What certifications do you hold?
Our company is ISO9001 certified, and our products comply with ASTM, EN, JIS, and other relevant standards. Third-party inspection (e.g., SGS, BV) is available upon request.
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