Galvanized Corrugated Sheet

Galvanized corrugated sheet is a specially treated steel sheet with excellent corrosion resistance and physical properties. It is widely used in many fields such as construction, engineering, packaging, vehicle manufacturing, electricity and agriculture. As a leading manufacturer of Galvanized Corrugated Sheet products in the metal industry, we provide high-quality DX52D Galvanized Sheet, SGH490 Galvanized Corrugated Sheet and Galvanized Roof Sheet to meet your strict requirements for strength, corrosion resistance and durability. Our products are strictly tested to ensure compliance with international standards.

What is the definition and use?

Galvanized corrugated sheet is a sheet with a layer of metallic zinc on the surface of cold-rolled steel sheet. This treatment method not only improves the corrosion resistance of the steel sheet, but also enhances its physical properties. Galvanized corrugated sheet is often used in building roofs, exterior walls, ceilings and roof structures, which can effectively protect the building structure from climate and environmental erosion and extend the service life of the building.

Production process

The production process of galvanized corrugated sheet includes the following steps:

‌Preheating ‌: The steel plate passes through a flame-heated preheating furnace to burn off the residual oil on the surface and generate an iron oxide film on the surface.

Reduction annealing ‌: The steel plate enters a reduction annealing furnace containing a mixture of H2 and N2 and is heated to 710~920℃ to reduce the iron oxide film to sponge iron, and the surface is activated and purified.

‌Galvanizing‌: After cooling to a temperature slightly higher than the molten zinc, it enters the zinc pot at 450~460℃, and the surface thickness of the zinc layer is controlled by an air knife.

‌Passivation treatment‌: Finally, it is passivated with chromate solution to improve white rust resistance‌.

Physical and chemical properties

Galvanized corrugated sheet has the following characteristics:

‌Impact resistance‌: It has good wind and earthquake resistance and waterproof performance.

‌Easy construction‌: It can be nailed, drilled, cut and planed, and the construction is convenient.

‌Diverse appearance‌: Good decorative effect, with a variety of appearance forms.

‌Flame retardant‌: It meets the B1 grade standard and is self-extinguishing and flame retardant.

‌Light weight‌: Easy to carry and install.

‌Stable physical properties‌: The surface is flat and does not deform‌.

Application field

Galvanized corrugated sheet is widely used in many fields:

‌Construction field‌: It is used for roofs, exterior walls, ceilings and roof structures.

‌Engineering field‌: It is used for structural components such as bridges, tunnels, columns, ventilation ducts, etc.

‌Packaging field‌: manufacturing packaging boxes and boxes for the transportation of goods and commodities.

‌Vehicle manufacturing‌: used for car bodies, carriages, cargo boxes and other parts of cars, trains and ships.

‌Electric power industry‌: used for the construction and maintenance of power transmission, substations, cable trays and other facilities.

‌Agriculture field‌: used for the construction of agricultural greenhouses, greenhouses and other facilities.