Galvanized Steel Strip

Product Details

Galvanized Corrugated Sheets are building-material composed of sheets of hot-dip galvanized mild steel, cold-rolled to produce a linear corrugated pattern in them. The corrugations increase the bending strength of the sheet in the direction perpendicular to the corrugations.

Spangle-free

Spangles cannot be seen on the surface of the steel plate by naked eyes, also called zinc-free plating, which is produced by controlling the chemical composition of zinc liquefaction. Zinc – free steel products can be produced by adding aluminum in zinc solution without addiation of lead, antimony and tin. The process is widely used throughout the world because it allows uniform surfaces to be obtained without additional equipment. It offers superior corrosion resistance and better coating performance, suitable for various purposes of modern industry, is the ideal base plate of color coated sheets.

Normal Spangle

Normal spangle are those with a diameter of more than 3mm that can be distinguished by the naked eye, also known as large spangle or natural spangle. The best size recognized internationally is 8~12mm.

Minimized spangle

Minimized spangles is the spangle with diameter 1~2mm. After the hot galvanized sheet came from zinc pot, spray water mist or zinc powder to no solidification of zinc layer, water droplets or zinc powder particles will form a crystallization center, which make the unit area zinc flower number increased and smaller, so galvanized plate surface will form with the naked eye can distinguish small spangle. However, this process often causes uneven zinc bloom and high production costs, so it is not widely used at present.

Specifications