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China Galvanized Sheet and Coils - Zinc-Coated Steel Strip from Trusted Suppliers and Factory
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Product Parameters
| Thickness | Common thickness ranges from 0.2mm to 5.75mm. |
| Width | Common width ranges from 600mm to 1500mm. |
| Zinc Coating Thickness | Typically between 10g/m² and 275g/m². |
| Tensile Strength | Typically between 300MPa and 600MPa. |
| Yield Strength | Typically between 200MPa and 400MPa. |
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Product Types
Galvanized coils can be classified based on their use, material, and process:
By Use
- Construction galvanized coils: Used for roofs, walls, and steel structures.
- Appliance galvanized coils: Used for refrigerator, washing machine, and air conditioner exteriors.
- Automotive galvanized coils: Used for car bodies, chassis, and components.
By Material
- Carbon steel galvanized coils: Made of carbon steel, widely used in construction and manufacturing.
- Alloy steel galvanized coils: Contains manganese, silicon, etc., for higher strength and special uses.
By Process
- Hot-dip galvanized coils: Produced by hot-dip galvanizing, with a thicker zinc layer for better rust resistance.
- Electro-galvanized coils: Produced by electroplating, with a thinner zinc layer and smoother surface.
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Product Advantages
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Excellent Rust Resistance
Zinc coating effectively prevents rust.
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Cost-Effectiveness
High cost-performance ratio, especially in large-scale applications.
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Wide Application
Suitable for construction, appliances, automotive, and more.
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Eco-Friendliness
Galvanized coils are recyclable and environmentally friendly.
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Product Materials
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Carbon Steel
Mainly used for standard galvanized coils, cost-effective and strong.
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Alloy Steel
Contains manganese, silicon, etc., for enhanced strength and wear resistance.
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Zinc Coating
Provides rust protection, extending service life.
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Product Applications
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Construction
Used for roofs, walls, and steel structures.
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Appliances
Used for refrigerator, washing machine, and air conditioner exteriors.
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Automotive
Used for car bodies, chassis, and components.
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Agriculture
Used for greenhouses and livestock fences.
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Industrial
Used for ventilation ducts and cable trays.
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Process Advantages and Material Selection Guidelines
Advanced high-speed rolling and controlled cooling technologies ensure dimensional precision (±0.1 mm) and microstructural homogeneity, supporting downstream processes like drawing and heat treatment. Material selection must comply with industry standards (ASTM, GB/T, JIS), prioritizing carbon content, elongation, and surface defect control.
As a global wire rod supplier, we deliver full-range solutions for steel strands, cold-headed standard parts, and special alloy wire materials, empowering clients to reduce costs and enhance efficiency. Contact us now for customized product catalogs and technical support!
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Frequently Asked Questions
QWhat is the standard thickness range for galvanized coils?
Standard galvanized coils typically range from 0.2mm to 5.75mm in thickness. Thinner coils are commonly used for home appliances and precision components, while thicker options are preferred for structural and heavy-duty construction applications.
QWhat is the difference between hot-dip galvanized and electro-galvanized coils?
Hot-dip galvanized coils are produced by immersing steel in molten zinc, resulting in a thicker coating (up to 275g/m²) with superior corrosion resistance — ideal for outdoor and heavy-duty environments. Electro-galvanized coils use an electroplating process to apply a thinner, more uniform coating with a smoother surface finish, making them well-suited for applications requiring precise dimensions and aesthetics.
QWhat international standards do your galvanized coils comply with?
Our galvanized coils are manufactured in compliance with major international standards including ASTM (American Society for Testing and Materials), GB/T (Chinese National Standards), and JIS (Japanese Industrial Standards). Custom specifications and certifications can also be arranged upon request — please contact our technical team for details.
QWhat zinc coating weight options are available?
We offer zinc coating weights ranging from 10g/m² to 275g/m². Lighter coatings are suitable for interior applications or products that will receive additional painting, while heavier zinc coatings provide greater corrosion protection for outdoor, agricultural, and industrial environments.
QCan galvanized coils be customized in width and specifications?
Yes. Standard widths range from 600mm to 1500mm, but we support custom widths, coil weights, and lengths based on your project requirements. Slitting and cut-to-length services are also available. Please provide your specifications and we will deliver a tailored product solution.
QAre galvanized coils an environmentally friendly material?
Yes. Galvanized coils are considered a sustainable material choice. Zinc is fully recyclable, and the galvanizing process significantly extends the service life of steel, reducing material replacement frequency and overall resource consumption. Zinc also occurs naturally in the environment and is non-toxic at standard usage levels, making galvanized steel a responsible and eco-friendly option.