Galvalume Steel Coil

Outstanding Corrosion Resistance: The aluminum-zinc-silicon alloy coating ensures long-lasting protection against rust, oxidation, and harsh weather conditions.

High Heat & Oxidation Resistance: Maintains stability and surface integrity even under high-temperature environments.

Lightweight with High Strength: Delivers excellent mechanical performance with thinner gauges, reducing material weight and overall project cost.

Excellent Formability & Surface Quality: Smooth, uniform surface with strong coating adhesion, making it ideal for bending, cutting, painting, and other fabrication processes.


Product Details

Hot-Dipped Galvalume Steel Sheet (GL Steel Sheet)


Our hot-dip galvalume steel sheet—commonly referred to as GL steel sheet—is coated with a high-performance aluminum-zinc-silicon alloy (55% Al, 43.5% Zn, 1.5% Si). This enhanced coating delivers exceptional resistance to corrosion, heat, and oxidation, ensuring long-lasting durability. With its reliable performance and surface quality, it is widely used in construction, home appliances, and various industrial applications.


Galvalume Sheet Metal


Specifications


Type of products

Material

Thickness (mm)

Width (mm)

Uses and characteristics

 Mild and ultra-low carbon steels

SGLCC.DX51D. CS A. CS B

0.1-1.2

650-1250

Cold-formed and general household

Structural Steel

 

SS33. SS37. SGC400

G300. SS40. SS50-3

S550GD+AZ.S420+AZ

S350GD+AZ

G550

0.1-1.2

762-1250

These products has excellent corrosion resistance and processing properties. It has a thinner thickness, lighter components, and more economical cost under the same strength.It is mainly used in the construction field, especially in steel structure buildings


Features

  • Outstanding Corrosion Protection – The Al-Zn alloy coating provides durable resistance to rust, weathering, and oxidation.

  • Reliable High-Temperature Performance – Maintains structural stability and coating integrity even under elevated heat conditions.

  • Premium Surface Finish – Features a smooth, clean appearance with excellent adhesion, making it suitable for painting, printing, or film lamination.

  • Strong Yet Lightweight – Allows the use of thinner materials without sacrificing strength, contributing to reduced overall weight and lower costs.

  • Excellent Formability – Designed for easy bending, cutting, and shaping while preserving the quality and adhesion of the coating.

Structure

The structure of galvalume steel sheet is created through a hot-dip coating process, during which a consistent aluminum-zinc-silicon alloy layer is metallurgically bonded to the steel base. This engineered coating delivers:

  • Barrier Protection: Aluminum forms a physical shield against external elements.

  • Galvanic Protection: Zinc sacrifices itself to prevent steel corrosion.

  • Enhanced Durability: The Si component strengthens adhesion between alloy coating and steel sheet.

Galvalume production lines

Three galvalume production lines, jointly developed and constructed with well-known domestic R&D institutions. Production specifications: thickness 0.12–1.2 mm, width 700–1250 mm. The production line module adopts intelligent management and control, and also has energy reuse functions such as waste heat recovery and hydrogen recovery, so as to realize energy saving, environmental protection, and low-carbon production. The annual production capacity is 400,000 tons.

About Us

Xinghan Coating:
As a high-quality coating brand under Guanxian Renze Composite Materials Co., Ltd., "Xinghan Coating" focuses on the development of high-corrosion-resistant, super-corrosion, and easy-to-form coating products, and has accumulated more than 20 years of coating plate rich practical experience. "Xinghan Coating" galvanized steel sheet, galvalume steel sheet, and prepainted steel sheet always adhere to the direction of high-standard, high-quality, and efficient development. It has become a well-known brand at home and abroad in the research and development, production and sales, and provides integrated solutions for detection and installation of application scenarios.

The company covers an area of 400,000 square meters, employs more than 1,200 people. It has 18 main production lines, and can produce 2 million tons of pickling and cold roll products and 1.7 million tons of coated products annually. It has established in-depth cooperation with many well-known domestic colleges and universities, and has obtained more than 50 invention patents and utility model patents. The factory area has a quality inspection center that has passed CMA certification. With excellent product quality and efficient and perfect after-sales service, it has maintained long-term and stable strategic cooperative relations with more than a thousand large and medium-sized enterprises at home and abroad. The products are sold to more than 20 domestic provinces and regions, and exported to more than 100 countries and regions such as the European Union, Africa, America, Southeast Asia, and Central Asia, and has won a general recognition and brand reputation in domestic and foreign markets.


Galvalume Sheet Metal


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