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Help CenterHeavy Duty Galvanized Steel Coil 3.0-6.0mm Thick Z275 Zinc Coating 1200mm Coil Width for Structural Use
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. We are a professional steel manufacturer and exporter, committed to delivering high-performance materials for the construction and structural industries. Our heavy duty galvanized steel coil is designed to provide outstanding durability and corrosion resistance, meeting the needs of demanding structural applications. With a thickness range of 3.0 to 6.0 mm, a protective Z275 zinc coating, and a convenient 1200 mm coil width, this product delivers reliable performance in a wide range of environments.
This coil is produced from selected steel substrate and processed through a strict galvanizing line to achieve the Z275 zinc coating specification. The result is a tightly adherent zinc layer that shields the steel from moisture, chemicals, and other corrosive agents. Whether you are manufacturing purlins, steel frames, roofing components, or other structural parts, this heavy duty coil offers the strength and formability required for efficient production.
Key Features
- Heavy gauge thickness from 3.0 to 6.0 mm, suitable for load-bearing structural components and providing high rigidity.
- Z275 zinc coating delivers superior anti-corrosion protection, reducing maintenance costs and extending service life.
- 1200 mm wide coil offers excellent material utilization and compatibility with standard processing machinery.
- Good welding, forming, and stamping characteristics allow easy fabrication into custom shapes without cracking.
- Consistent mechanical properties across the entire coil ensure reliable performance in each batch.
- Available with customized slitting, shearing, or re-coiling services to meet your project specifications.
Technical Specifications
| Parameter | Value |
| Material | Galvanized Steel |
| Thickness | 3.0 - 6.0 mm |
| Zinc Coating | Z275 (275 g/m2) |
| Coil Width | 1200 mm |
| Inner Diameter | Available upon request |
| Coil Weight | Customizable |
| Application | Structural use |
| Quality System | ISO9001 |
Product Advantages in Detail
The heavy duty galvanized steel coil from Hemaokang Steel is engineered for structural applications where strength and reliability are essential. The 3.0-6.0 mm thickness range provides the rigidity needed for beams, columns, and load-bearing members, while the steel retains sufficient ductility for bending and forming. This balance of strength and workability makes it a preferred choice for fabricators and contractors.
The Z275 zinc coating is a key differentiator. It specifies a zinc mass of 275 grams per square meter across the surface, which forms a robust protective layer. This coating resists rust, scratches, and environmental corrosion, significantly extending the product lifespan. For applications exposed to humidity or chemical atmospheres, the Z275 coating offers an extra margin of safety.
With a coil width of 1200 mm, this galvanized steel coil is compatible with standard industrial processing equipment. It can be easily slit into narrower widths or cut to length, reducing waste and improving turnaround times. The consistent thickness and flatness contribute to high precision in final products.
Compared with lighter gauge galvanized coils, this heavy duty version offers superior impact resistance and can support greater loads without deformation. It is particularly suited for structures that require long spans and heavy loading. Additionally, the zinc coating acts as a sacrificial layer: even if the surface is scratched, the zinc continues to protect the exposed steel, preventing corrosion from spreading.
Typical Applications
- Structural steel beams and columns for industrial buildings.
- Purlins and girts for metal roof and wall systems.
- Roll-formed sections for framing and cladding.
- Storage racks and shelving components.
- General steel fabrication and repair works.
Quality control is a top priority at Hemaokang Steel. Every coil undergoes rigorous testing for thickness, coating weight, and mechanical properties. Our well-equipped facility and experienced staff ensure that only products meeting the highest standards are delivered to customers. We also offer mill test certificates and compliance documentation to support your quality assurance process.
Our packaging and logistics team ensures that each coil is properly protected for sea freight. We use moisture-proof wrapping, steel strapping, and edge protection to safeguard the material during handling and transport. Shipments can be arranged through Qingdao Port, one of the busiest ports in China, ensuring efficient delivery around the world.
Why Choose Hemaokang Steel
- Lower total cost of ownership due to extended service life and reduced maintenance requirements.
- Stable supply from our factory in Liaocheng, Shandong, with annual export values reaching US$50-100 million.
- ISO9001 quality management system ensures consistent product quality and reliable traceability.
- Flexible packaging and transportation options through Qingdao Port, serving global customers efficiently.
- Experienced technical team of 51-100 employees provides guidance and after-sales support.
As a supplier that has been operating since 2025, Hemaokang Steel has quickly established itself in the global market. We export to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. Our team is committed to providing high-quality galvanized steel coils and excellent customer service. With ISO9001 certification and an annual export value between US$50 million and US$100 million, we have the capacity and capability to meet large-volume orders while maintaining precision and care. We invite you to contact us for more information, samples, or a customized quotation.
Frequently Asked Questions
Q1: What thickness ranges are available?
A1: Our standard thickness for this heavy duty coil is from 3.0 mm to 6.0 mm. Other thickness options can be discussed based on your project requirements.
Q2: Is the Z275 zinc coating sufficient for outdoor applications?
A2: Yes, Z275 provides a zinc layer of 275 g/m2, which offers strong corrosion resistance for most outdoor and structural environments. For extremely harsh conditions, please consult our technical team for alternative coating levels.
Q3: Can you customize the coil width?
A3: Yes, we can slit the 1200 mm coil into smaller widths according to your drawings or specifications. Custom widths are available upon request.
Q4: What is the packaging method?
A4: Coils are wrapped with waterproof paper, steel strapping, and protective edge protectors to ensure safe transit. Export packaging can be customized to meet your specific requirements.
Q5: How do you ensure consistent quality?
A5: We operate under an ISO9001 quality management system and conduct regular inspections during production and before shipment. Certificates are available upon request.
Q6: What is the typical lead time?
A6: For standard products, delivery usually takes 2-4 weeks after order confirmation. Exact lead time depends on the order quantity and customization requirements.
Q7: Can we order a sample before bulk purchase?
A7: Yes, samples are available upon request. Please contact our sales team to discuss sample availability and shipping costs.
Q8: What are the main applications for this coil?
A8: This product is commonly used in structural steel framing, purlins, roof panels, wall systems, storage racks, and general fabrication. Its strength and corrosion resistance make it versatile for many construction and industrial uses.
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