2023-01-17 https://www.aluminum-coils.com/a/color-coated-aluminum-and-steel.html
and steel
with good formation, corrosion, decoration, mechanical properties, is being more and more widely used in building decoration, transportation, the field closely related to people’s life, gradually replaced the color steel sheet.
| Color coated steel | ||
| Durability | The formation of aluminum oxide film with the atmosphere prevents further corrosion | It is easy to corrode rust in wet air and rain and snow, especially in the welding joints |
| Weight | Density2700kg/m³ | Density7850kg/m³ |
| Strength and rigidity | The content of magnesium and manganese in aluminum sheet has certain strength and rigidity | Good strength and rigidity |
| Appearance | Non color coated （Hammer grain,embossed,prepassivation alumina surface treatment, etc） and color coated（PVDF,FEVE,PE,PVC) | Color coated（PVDF,FEVE,PE,PVC) |
| anti-lighting performance | The thickness is generally 0.7mm and 0.9mm, which can be used directly as lightning protection and to avoid perforation in the house | It is generally used to use 0.5mm thick aluminum zinc plating and galvanized steel plate. It cannot be used as a lightning proof flash |
| Fire Precaution | In case a fire occurs in a lower melting point (660 ℃), roof is easy to be burned to wear, make the fire spread outward, not inward lateral spreading, thorough fire hose from the top to help firefighters put out the fire | Steel of high melting point (1515 ℃) |
