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Hot-dip galvanizing is a process that applies a protective zinc coating to steel or iron sheets to prevent rusting. This is achieved by passing acid-washed steel through a zinc pot, forming a zinc film on the surface, resulting in hot dipped galvanized steel coils (GI). These coils are known for their excellent corrosion resistance, paintability, and workability, making them a popular choice across various industries. As a leading hot dipped galvanized steel coils supplier in China, HXH offers high-quality hot dipped steel coil at competitive prices, ensuring cost-effective solutions for our customers.
| Standard | ASTM / JIS / DIN / GB / GOST / EN |
| Grade | - USA (ASTM): ASTM A653 CS Type A/B/C, ASTM A653 SS Grade 33/40/50 |
| - China (GB): GB DX51D, GB DX52D, GB DX53D, GB SGCC | |
| - Japan (JIS): JIS SGCC, JIS SGH340, JIS SGH400, JIS SGH440 | |
| - Germany (DIN): DIN DX51D, DIN DX52D, DIN DX53D, DIN HX260LAD, DIN HX300LAD | |
| - EU (EN): EN DX51D, EN DX52D, EN DX53D, EN HX260LAD, EN HX300LAD | |
| Material | - Carbon Steel: Base steel is typically SPCC, DC01, or similar low-carbon grades, coated with zinc. |
| Sizes | Thickness: 0.2-6.0mm |
| Width: 600-1500mm | |
| Coating Mass: 30-600 g/m² |
Zinc coating provides long-lasting rust protection.
Low maintenance cost for durable applications.
Hot dipped galvanized steel coil is one of the most widely used and trusted materials in the steel industry, valued for its durability, corrosion resistance, and versatility. One of its most significant advantages is its superior protection against rust and corrosion. During the galvanizing process, a layer of zinc is metallurgically bonded to the surface of the steel through immersion in molten zinc. This coating acts as a protective barrier, preventing moisture, oxygen, and other corrosive elements from reaching the steel base. Even if the surface is scratched, the zinc continues to protect the exposed area through a process called "sacrificial protection," ensuring long-lasting performance in harsh environments.
Another key benefit of hot dipped galvanized coil is its outstanding durability and long service life. The zinc coating significantly increases the lifespan of the steel, often lasting decades without major maintenance. This makes it an ideal choice for outdoor and industrial applications such as roofing, wall panels, structural frames, and fencing. Its ability to withstand extreme weather conditions — from heavy rain and humidity to high temperatures — makes it a reliable material for infrastructure, construction, and manufacturing projects.
Hot dipped galvanized steel coils also offer excellent adhesion and surface finish, making them easy to paint, coat, or fabricate. The smooth and uniform zinc layer not only enhances the steel's aesthetic appearance but also provides an ideal surface for further processing. This makes it suitable for use in automotive parts, appliances, and decorative panels where both strength and visual appeal are important. Additionally, the consistent coating thickness ensures predictable performance and easy handling during cutting, bending, and welding operations.
Lastly, this material is known for its cost efficiency and sustainability. Galvanizing provides long-term protection at a relatively low cost compared to other corrosion-resistant treatments, reducing the need for frequent repairs or replacements. Furthermore, galvanized steel is fully recyclable, supporting environmentally friendly manufacturing practices. In summary, hot dipped galvanized steel coil combines strength, protection, and economy — offering a durable, low-maintenance, and eco-conscious solution for modern industry and construction needs.
1. Building & Construction: Roofing, wall cladding, and ductwork.
2. Home Appliances: HVAC systems and electrical enclosures.
