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Galvalume steel sheet is a kind of pre-coated steel sheet which bases on all kinds of cold-rolled steel sheet with various strength and thickness, and it is obtained by hot-plating one layer of Al-Zn on both sides. The coating is composed of 55% aluminum, 43.4% zinc and 1.6% silicon according to weight ratio.The process of galvalume steel sheet is similar to the one of galvanized steel sheet, it is Continuous molten coatina process. When exposed to the same environment on both sides, 55% Al-Zn alloy coated has moresuperior corrosion resistance than galvanized.
Products Description
Technical Standard | EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653 |
Steel Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, |
Type | Coil/Sheet/Plate/Strip |
Thickness | 0.12-6.00mm,or customer's requirement |
Width | 600mm-1500mm, according to customer's requirement |
Type of Coating | Hot Dipped Galvanized Steel(HDGI) |
Zinc Coating | 30-275g/m2 |
Surface Treatment | Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) |
Surface Structure | Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) |
Quality | Approved by SGS,ISO |
ID | 508mm/610mm |
Coil Weight | 3-20 metric ton per coil |
Package | Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by |
Export market | Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc |
Production Process and Production Line
