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Help CenterGalvanized Color Coated Coil 550MPa Tensile Strength 3B Hardness for Roll Forming Machine
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Hemaokang Steel (Shandong) Co., Ltd. is pleased to introduce our Galvanized Color Coated Coil with a tensile strength of 550MPa and 3B hardness, specially engineered for high-performance roll forming applications. This coil combines superior corrosion resistance from the galvanized substrate with an attractive, durable color coating, making it an ideal choice for architects, builders, and manufacturers who demand reliability and aesthetic appeal. Our production facility in Liaocheng, Shandong, utilizes advanced manufacturing processes to deliver coils that meet rigorous international standards, ensuring your roll forming operations run smoothly and yield consistent results.
This color coated galvanized coil is designed for use in roll forming machines producing roof panels, wall cladding, purlins, and various cold-formed steel profiles. With a yield strength that supports high-speed forming without cracking, the 550MPa tensile strength offers excellent structural integrity for load-bearing applications. The 3B hardness rating provides a balanced surface that is tough enough to resist scratching during handling and forming, yet formable enough for complex profiles. Whether you need standard colors or custom shades, our coil can be tailored to meet your specific project requirements.
Key Features
- High Tensile Strength (550MPa): Suitable for structural profiles and applications requiring excellent load-bearing capacity.
- 3B Hardness: Optimized for roll forming – resistant to surface damage yet easy to bend and shape.
- Galvanized Base: Hot-dip galvanized substrate provides robust corrosion resistance, extending service life in harsh environments.
- Color Coated Finish: Smooth, uniform coating available in a wide range of colors, enhancing aesthetics and durability.
- Excellent Adhesion: Coating adheres firmly to the galvanized surface, preventing peeling and flaking during forming.
- Consistent Thickness: Precision-controlled thickness ensures uniform profiles and minimizes waste during production.
- Customizable Dimensions: Width, thickness, coil weight, and color can be tailored according to your specifications.
- Roll Forming Compatibility: Low spring-back characteristics allow for accurate bending and reduced tooling wear.
Technical Specifications
| Parameter | Value | Remarks |
|---|---|---|
| Base Metal | Hot-Dip Galvanized Steel | Zinc coating weight optional |
| Tensile Strength | 550 MPa (minimum) | Verified through testing |
| Hardness | 3B | Suitable for roll forming |
| Coating Type | Polyester / PVDF / SMP | Customizable per request |
| Thickness Range | 0.2 mm – 2.0 mm | Other thicknesses available |
| Width Range | 600 mm – 1250 mm | Slitting service available |
| Coil Inner Diameter | 508 mm / 610 mm | Standard options |
| Coil Weight | 3 – 10 tons | Customizable |
Our coils are manufactured under a strict ISO9001 quality management system, ensuring every batch meets consistent quality and performance criteria. The combination of 550MPa tensile strength and 3B hardness makes this coil an optimal material for applications where both strength and formability are critical. It excels in continuous roll forming lines, offering excellent flatness, uniform coating thickness, and minimal edge burr, which reduces downtime and increases production efficiency.
Application Benefits
- Roofing and Cladding: Provides long-lasting weather resistance and vibrant color retention for building exteriors.
- Structural Profiles: The high tensile strength supports heavier loads, making it suitable for purlins, rails, and beams.
- Home Appliances and Cabinets: The smooth surface and stable dimensions are ideal for precise fabrication.
- Automotive and Transportation: Corrosion-resistant and easy to form, used in truck bodies, trailers, and containers.
- Furniture and Shelving: Attractive finish and robust mechanical properties meet various functional demands.
We understand that consistent quality and reliable supply are essential for your production schedules. As a company with an annual export value of US$50 million to US$100 million, we have established a strong global supply chain that ensures timely delivery from our port of shipment in Qingdao. Our experienced team, consisting of 51–100 dedicated employees, is committed to providing you with responsive service and technical support. We export to major markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia, with a proven track record of customer satisfaction.
To further support your specific needs, we offer custom color matching, special coating formulations, and cut-to-length or slitting services. Our flexible production capability allows us to handle both standard and customized orders, ensuring you receive exactly the right coil for your roll forming machinery. We also provide sample materials for testing, so you can verify the performance before bulk ordering. With competitive pricing, strict quality control, and reliable delivery, we are confident that our Galvanized Color Coated Coil will meet and exceed your expectations.
Contact Hemaokang Steel today to discuss your requirements or request a quotation. Our team is ready to assist you with technical data, certification documents, and shipping details. We look forward to building a successful and long-term partnership with you.
FAQ
-
What is the minimum order quantity (MOQ)?
Our standard MOQ is 1x20' container, but smaller trial orders may be accepted on request. Please contact our sales team to discuss your specific needs. -
Can you provide samples before bulk order?
Yes, we can provide small samples (e.g., 100mm x 200mm) free of charge, but the customer covers freight. Mass production samples are also available. -
What colors are available?
We offer a wide range of standard colors including white, gray, blue, red, and custom shades. Color matching can be done based on Pantone or RAL codes. -
How does the 550MPa tensile strength benefit roll forming?
It allows the coil to be formed into profiles that can withstand higher structural loads while maintaining shape integrity. It also reduces the risk of spring-back, ensuring more precise dimensions. -
What is the difference between 3B hardness and other hardness ratings?
3B indicates a relatively soft but durable temper, ideal for roll forming. It offers good formability for complex bends and helps prevent micro-cracking on the surface. -
Is painting or coating customizable?
Yes, we can customize coating type (polyester, PVDF, SMP), thickness, and color according to your environmental and aesthetic requirements. Anti-fingerprint and anti-fungal coatings are optional. -
What is the lead time for production and delivery?
Typical production lead time is 15–25 days after receiving a deposit and confirmed specifications. Delivery to Qingdao port is usually arranged within 1–2 weeks after production. -
Do you provide quality certificates or test reports?
Yes, we provide a mill test certificate, inspection reports, and a certificate of conformity as part of our quality documentation. Third-party inspection is also acceptable upon request.
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