The surface coating of the high quality aluzinc galvalume steel coils is composed of 55% aluminum, 43.5% zinc and a small amount of other elements. Under the microscopic level, the surface of the galvanized sheet is a honeycomb structure, in which zinc is contained in the "honeycomb" composed of aluminum.
The surface coating of the high quality aluzinc galvalume steel coils is composed of 55% aluminum, 43.5% zinc and a small amount of other elements. Under the microscopic level, the surface of the galvanized sheet is a honeycomb structure, in which zinc is contained in the "honeycomb" composed of aluminum. In this case, although the galvanized sheet also plays the role of anodic protection, the anodic protection effect is greatly reduced due to the reduction of zinc content and the fact that the zinc material is wrapped in aluminum and is not easy to electrolyze. Therefore, once the galvanized sheet is cut, the cut edge will quickly rust as it loses protection. Therefore, the galvanized sheet should be cut as little as possible. Once cut, the edge should be protected with anti-rust paint or zinc-rich paint to extend the service life of the sheet.
Products name:
Aluzinc steel coils
Steel grade:
S350 ASTM A792
Aluzinc coating:
40-275gsm
Coils Weight:
4-8 tons
Surface:
AFP
Coils ID:
508/610mm
Keyword:
Galvalume Aluzinc
Application:
Roofing sheets
Thickness:
0.12-3.00mm
Technique:
Cold roll
Width:
10-1250mm
MOQ:
20 tons
Spangle:
Zero. Minimum. Regular. Big
PACKING:
Standard Seaworthy Standards
Delivery :
30 days
Payment:
T/T L/C D/P
