ASTM a653 standard G90 color coated aluzinc steel used for making roofing sheets
Zinc and Aluminum are added together for aluminum and zinc compounds. Such as AZ150. Aluminum-zinc plating is alloy steel. Among the aluminum-zinc compounds, the proportions of aluminum and zinc are: aluminum 55%, zinc 43.5%, and silicon 1.5%. Among the signs of aluminum-zinc coating, such as AZ100, the aluminum-zinc coating is 100 grams per square, AZ70 is the aluminum-zinc coating content of 70 grams per square, and AZ150 is the aluminum-zinc coating content of 150 grams per square. The spot materials of aluminum-coated zinc coils on the market are generally: AZ50, AZ70, AZ100, AZ150, AZ180, AZ200.
The two important elements of the coated plate are zinc, aluminum, aluminum zinc, and three alloy substances. Zinc is generally represented by Z. Z is the abbreviation of English Zinc. For example, the galvanizing content on the surface of Z80 is 80 grams per square. Z100 represents the galvanized content of 100 grams per square, and so on. What is the number behind Z means the gram-squared of the coating content of the steel coils of this batch. The general materials of hot-dip galvanizing in the market are: Z80, Z100, Z120, Z140, Z180, Z275 and so on. Aluminum is indicated by A. A is the abbreviation of Aluminum in English.
Since most of the plated plates are thin plates, thick plating is generally not more than 3.0 thick, so the plating content is delineated.
|Coil weight||4-9 tons|
|Surface treatment||chromated anti-finger print|
|Grade||DX51D S350GD G550|
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