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Help CenterGalvanized Steel Coil 1.0mm Thickness 1000mm Width JIS G3312 CGCC Prepainted Option
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Premium Galvanized Steel Coil with Prepainted Option – Engineered for Durability and Performance
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality galvanized steel coils with a thickness of 1.0mm and a width of 1000mm, manufactured in accordance with JIS G3312 and available with a prepainted finish for enhanced corrosion resistance and aesthetic appeal. As a fast-growing steel supplier based in Liaocheng, Shandong, China, we combine advanced production technology, rigorous quality control, and efficient export logistics to deliver coils that meet the demanding requirements of construction, manufacturing, and industrial applications. Our galvanized steel coils are designed to provide long service life, excellent formability, and consistent surface quality, making them a reliable choice for fabricators and distributors worldwide.
This product is produced from high-strength steel substrates coated with a uniform layer of zinc, offering sacrificial protection against rust and oxidation. The optional prepainted coating adds an extra barrier layer, available in a variety of colors and finishes, enabling direct use in visible applications without additional painting. Whether you need bare galvanized coils or prepainted coils for roofing panels, wall cladding, or home appliances, our 1.0mm×1000mm format provides an optimal balance of strength, weight, and workability.
Key Product Features
- JIS G3312 Compliance: Strictly manufactured according to Japanese Industrial Standards, ensuring reliable mechanical properties and coating performance.
- 1.0mm Thickness: Provides excellent structural rigidity while remaining easy to cut, bend, and form for various end-use applications.
- 1000mm Width: Ideal for standard roofing sheets, wall panels, and roll-forming processes, reducing material waste and improving production efficiency.
- Prepainted Option: Available with polyester (PE), silicone modified polyester (SMP), or PVDF coatings in a wide range of colors to match architectural and industrial requirements.
- Superior Corrosion Resistance: The zinc coating, combined with optional paint layers, protects the steel from moisture, chemicals, and UV exposure, extending the product lifespan significantly.
- Excellent Formability: The steel substrate is carefully selected to support bending, stamping, and deep drawing without cracking or delamination of the coating.
- Uniform Coating Thickness: Advanced galvanizing lines ensure consistent zinc coating weight across the entire coil, guaranteeing predictable performance.
- Smooth Surface Finish: Free from pits, scratches, and spangle irregularities, suitable for high-quality painted finishes or exposed installations.
Technical Specifications
| Parameter | Value |
|---|---|
| Standard | JIS G3312 |
| Base Material | Cold rolled steel (CGCC) |
| Thickness | 1.0mm (tolerance ±0.02mm) |
| Width | 1000mm (customizable upon request) |
| Coating Type | Hot-dip galvanized (zinc coating) |
| Zinc Coating Weight | 40-275 g/m² (optional) |
| Surface Treatment | Chromate / passivation / oiled / unoiled |
| Paint Finish (Optional) | PE, SMP, PVDF, HDP (customizable) |
| Coil Inner Diameter | 508mm / 610mm (optional) |
| Coil Outer Diameter | 800mm - 1500mm |
| Coil Weight | 3 - 8 tons per coil |
| Tensile Strength | 270 - 500 MPa (depending on grade) |
| Elongation | ≥ 20% |
Applications and Benefits to Customers
- Construction Industry: Ideal for corrugated roofing sheets, wall panels, gutters, and structural components. The prepainted finish eliminates the need for on-site painting, reducing labor costs and project timelines.
- Home Appliances: Used in the manufacturing of refrigerators, washing machines, microwaves, and air conditioning cabinets. The smooth, uniform surface ensures a premium appearance and easy cleaning.
- Automotive Industry: Suitable for non-critical structural parts, mufflers, and brackets where corrosion resistance and formability are essential.
- Furniture and Storage: Applied in making steel cabinets, shelving units, and lockers. The material's durability and attractive finish enhance product value.
- Roll Forming and Fabrication: Perfect for producing C/Z purlins, ceiling grids, and metal profiles. Consistent thickness and width allow high-speed roll forming with minimal downtime.
- Export and Distribution: Coils are packed in standard seaworthy bundles with anti-rust paper and steel pallets, ensuring safe long-distance transportation to overseas markets.
Why Choose Hemaokang Steel?
Established in 2025, Hemaokang Steel (Shandong) Co., Ltd. has rapidly become a trusted supplier in the global steel market, with an annual export value ranging from US$50 million to US$100 million. Our company employs a dedicated team of 51-100 professionals who ensure every order meets strict quality and delivery requirements. We operate with an ISO9001 quality management system, which governs our production processes, inspection procedures, and customer service protocols. All products are packaged and shipped from the Port of Qingdao, a major logistics hub that guarantees efficient shipping routes to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions.
Our location in Liaocheng, Shandong, places us at the heart of China's steel production cluster, giving us direct access to high-quality raw materials and cost-effective manufacturing. We maintain a robust inventory of common specifications and can also customize orders according to project-specific requirements. Whether you require a particular coating color, special coil dimensions, or tailored packaging, our team is ready to respond quickly with practical solutions.
Quality Assurance and Certification
We are committed to delivering consistent product quality. Each galvanized steel coil undergoes strict testing for thickness, width, coating weight, mechanical properties, and surface defects before shipment. Our quality control team follows documented procedures aligned with ISO9001, ensuring full traceability and reliable documentation. For customers wishing to verify quality, we can provide mill test certificates and inspection reports upon request. Third-party inspections are also welcome and can be arranged to provide additional confidence.
Customization Options
- Thickness: Available in a range from 0.12mm to 4.0mm. The 1.0mm option offers a versatile balance for many applications.
- Width: Standard 1000mm, with customization from 600mm to 1500mm depending on production capability.
- Paint Color: Over 200 RAL and BS colors available, including metallic, textured, and matte finishes.
- Paint System: PE for general use, SMP for improved durability, and PVDF for long-term architectural exterior applications.
- Zinc Coating: Various zinc weights to match the corrosion protection level required for your specific environment.
- Surface Finish: Spangle, mini-spangle, zero-spangle, or phosphate pre-treatment.
Ordering and Delivery
Our sales team provides professional guidance from inquiry to after-sales support. For this product, the minimum order quantity is flexible and can be discussed based on your needs. We offer competitive FOB, CIF, and CFR terms via Qingdao port. Lead time is typically 15-25 days after deposit, depending on order size and customization. For urgent projects, we may expedite production from our existing stock.
Conclusion
At Hemaokang Steel, we understand that reliable material supply is the foundation of your project's success. Our galvanized steel coil with 1.0mm thickness and 1000mm width, compliant with JIS G3312 and available with a prepainted option, delivers the strength, durability, and aesthetics you need. With our strong export capacity, ISO9001-certified processes, and customer-centric approach, we are committed to being your long-term partner in growth. Contact us today to request a quotation, sample, or technical consultation. We look forward to supporting your next project with high-quality steel products and responsive service.
Frequently Asked Questions
-
What is the difference between GI and prepainted galvanized steel coil?
GI (galvanized steel) has a pure zinc coating for corrosion resistance, while prepainted coil has an additional paint layer on top of the zinc coating. The paint provides both surface protection and aesthetic color, making it ideal for visible applications without further painting. -
Can I order this coil in a different color?
Yes, we offer a wide range of colors including RAL and BS standards. PE, SMP, and PVDF paint systems can be selected according to your durability requirements and environmental conditions. A sample card can be sent for color approval before mass production. -
What is the minimum order quantity?
The MOQ is flexible and depends on the specification and customization level. For standard bare galvanized coils, we can accommodate modest trial orders. For prepainted coils with custom colors, please contact our sales team to discuss economical order quantities. -
How do you ensure the quality of the zinc coating?
We use a continuous hot-dip galvanizing process and monitor the coating weight using a thickness gauge. Mill test certificates are provided, and third-party inspections (such as SGS or BV) are welcomed and can be arranged at your request. -
What is the packing standard for export?
Coils are wrapped in waterproof paper, protected with edge caps, and fixed on steel pallets or with steel straps. Sea-worthy packing ensures safe arrival in containers or breakbulk. Custom packing can be designed for special requirements. -
Is this coil suitable for outside roofing?
Yes, when using the prepainted option with PVDF or HDP paint, it is highly suitable for roofing and exterior cladding. These paint systems offer excellent UV resistance and color retention. We can also advise on the appropriate zinc coating weight for coastal or industrial environments. -
What payment terms do you accept?
We commonly accept T/T (30% deposit, 70% before shipment) and L/C at sight. For long-term partnerships, other flexible terms may be considered. Please discuss with your sales representative to reach an agreement. -
Can you provide samples before bulk order?
Yes, we can provide small samples (such as 10cm×10cm) for material and color verification. Samples are free of charge; courier shipping costs are born by the customer, which may be deducted from a formal order.
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