The difference between galvanized and Galvalume steel coil (GL)
Release time：
2022-07-02 00:00
Source：
The difference between galvanizing and Galvalume steel coil (GL) mainly lies in the difference of coating. The surface of galvanized steel coil is evenly distributed with a layer of zinc material, which plays an anodic protection role for the base metal, that is to say, the replacement of zinc material Corrosion protects the use of the base metal, and only when all the zinc is corroded can the base metal inside be damaged.
The surface coating of Galvalume steel coil (GL) is composed of 55% aluminum, 43.5% zinc and a small amount of other elements. The surface of the aluminum-zinc coating is a honeycomb structure at the microscopic level, and the "honeycomb" composed of aluminum contains Zinc, in this case, although the aluminum-zinc coating also plays the role of anodic protection, on the one hand, due to the reduction of zinc content, on the other hand, because the zinc material is wrapped by aluminum and is not easy to be electrolyzed, the role of anodic protection is greatly reduced. If the galvanized sheet is cut, it will rust quickly when the cut edge is basically lost to be protected. Therefore, the galvanized sheet should be cut as little as possible. Once cut, apply anti-rust paint or zinc-rich paint to protect the edge before It can prolong the service life of the board.
The surface of Galvalume steel coil (GL) has a characteristic smooth, flat and gorgeous star flower, and the base color is silvery white. The special coating structure makes it have excellent corrosion resistance. The normal service life can reach 25a, the heat resistance is very good, and it can be used in high temperature environment; the adhesion between the coating and the paint film is good, and it has good processing performance. It can be punched, sheared, welded, etc., and the surface conductivity is very good.
Related news
What is the difference between hot rolled and cold rolled steel sheet?
In terms of appearance and surface quality, because the cold plate is obtained after the cold rolling process of the hot plate
What are the advantages of using Galvalume steel coil (GL)?
The surface of Galvalume steel coil (GL) has a characteristic smooth, flat and gorgeous star flower, and the base color is silvery white.
How to deal with the deviation of Galvanized steel coil (GI) printing process?
In the rolling process of Galvanized steel coil (GI), more and more printing process is used. By embossing and printing process, different surface effects can be obtained, which overcomes the problem of rolling surface of galvanized steel coil. The shortcomings of easy discoloration, delamination, and unsightly appearance, time-saving and labor-saving, low production cost, not easy to fade, anti-aging, good fire and rain resistance, make up for the shortcomings of ordinary steel coil rolling surface monotonous.
How to clean the surface of Stainless steel coil/ sheet
Regular cleaning and maintenance should be performed on the surface of the stainless steel coil/ sheet to maintain its surface and increase its service life. When removing the surface
What is the difference between low carbon steel and Cold rolled steel sheet
Cold rolling is made of hot-rolled coils as raw materials, which are rolled at room temperature below the recrystallization temperature. Cold rolled steel sheet is a steel plate produced through a cold rolling process, referred to as cold plate.
Focus on Prepainted galvanized coil,Galvanized Steel coil, Galvalume Steel coil
Address：Venture Building，Dongchang East Road
Leave Your Message
©2022 Shandong Hongyi New Material Co.,LTD. SEO Powered by www.300.cn This site supports IPV6 access Yunzixun
