Galvalume Corrugated Sheet
Outstanding Corrosion & Heat Resistance: The Al-Zn-Si alloy coating (55% Al, 43.5% Zn, 1.5% Si) provides superior atmospheric corrosion resistance, oxidation resistance, and long service life.
Smooth Surface & Excellent Workability: Features a clean, uniform surface with strong coating adhesion and good forming, cutting, and processing performance.
High Strength with Lightweight Efficiency: Structural grades (up to S550GD+AZ / G550) offer high strength, allowing thinner and lighter components while maintaining performance—reducing overall project cost.
Versatile Applications & Proven Engineering Reliability: Widely used in construction, steel structures, and appliances; successfully applied in major projects such as the Jakarta–Bandung High-Speed Railway, demonstrating stable quality and international recognition.
Hot-dipped galvalume steel sheet, namely Galvalume (GL steel sheet for short), is a steel plate that is hot-dipped aluminum (Al 55%), zinc (Zn 43.5%), silicon (Si 1.5%) alloy steel plate. The surface is smooth and has excellent atmospheric corrosion resistance, heat resistance and oxidation resistance, excellent coating and good processing performance.
Product Types
Type of Products | Grade / Material | Thickness (mm) | Width (mm) | Uses and Characteristics |
Mild Steel | SGCC, DX51D CSA, CSB | 0.1 - 1.2 | 650 - 1250 | Cold forming and general appliance steel. |
Structural Steel | SS33, SS37 G300, SS40, SS50-3 S550GD+AZ, S420+AZ, GDS350GD+AZ G550 | 0.1 - 1.2 | 762 - 1250 | These products feature good corrosion resistance and workability. At the same strength level, they can be made thinner, resulting in lighter components and more economical costs. Primarily used in the construction field, especially for steel structure buildings. |
Product Application Cases
Indonesia Jakarta-Bandung high-speed rail project Connecting Jakarta, the capital of Indonesia, and Bandung, the fourth largest city in Indonesia, the Jakarta-Bandung high-speed Railway is the first high-speed railway in Southeast Asia and the first high-speed railway construction project with the whole system, all elements and the whole industrial chain of China's high-speed railway overseas.
In 2016, the Jakarta-Bandung high-speed rail project was officially launched, and under the personal promotion of the heads of state of China and Indonesia, the construction of the Jakarta-Bandung high-speed rail has continued to advance and made significant progress. As a landmark project of high-quality Belt and Road cooperation between China and Indonesia, the Jakarta-Bandung high-speed rail is a vivid illustration of the rich connotation of building a China-Indonesia community of shared future, and a vivid illustration of China and its neighbors working together under the principle of extensive consultation, joint contribution and shared benefits to deepen mutually beneficial and win-win cooperation.
Recently, the Jakarta-Bandung high-speed railway with a total length of 142 kilometers has reached 350 kilometers per hour for the first time, and the maximum speed reached 386km/h, marking that the Jakarta-Bandung high-speed railway has reached the design speed standard. The completion of a railway has witnessed the vigorous development of bilateral relations and become a vivid epitome of cooperation between China and economies in the Asia-Pacific region.
