The galvalume coating is an alloy consisting of approximately 55% aluminum, 43.4% zinc and 1.5% silicon by weight, which is applied to steel by the continuous hot dip process. Galvalume steel sheet offers the best qualities of aluminum coated (aluminized) and zinc coated steel sheet (galvanized). The aluminum/zinc coating has barrier corrosion resistance and heat resistance similar to aluminum coated steel. It also has good bare edge galvanic protection and forming qualities similar to continuously annealed commercial quality galvanized. The appearance of Galvalume coating is quite distinctive. Its smooth, flat and fine spangle and a silvery metallic appearance make it attractive in unpainted applications.

Galvalume Specifications ASTM A792 / A792M

Spangles on Galvanized Steel

Spangle is formed during the hot-dip galvanizing process. The size, brightness, and surface of spangles mainly depend on the composition of zinc layer and cooling method. According to the size, it includes small spangles, regular spangles, big spangles, and zero spangles. They look different, but the spangles almost will not influence the quality of galvanized steel. You can choose according to your preference and purpose.

FAQ:

Q1. What are your company's main products ?

A1: Our main products are stainless steel & Galvanize coils, plate/sheet, round/square pipe etc.

Q2. How do you control quality ?

A2: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.

Q3. What are the advantages of your company ?

A35: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q4: What is the terms of packing?

A3: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers requirement.

Q5:What is your delivery time?

A4: For stocks, we could transport the goods to loading port within 7 days after we received your deposit

For production period, it usually takes about 15 days-30 days after receiving the deposit.

Q6. Can you provide sample ?

A7: We can provide the samll samples in stock for free, as long as you contact us.

Customized samples will take about 5-7days.

Q7. How many coutries you already exported ?

A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India,Thailand, Vietnam, South Korea etc.