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The steel sheet is immersed in the molten zinc solution to adhere to the surface of the zinc thin steel sheet. It is mainly produced by a continuous galvanizing process, that is, a rolled steel sheet is continuously immersed in a galvanizing tank and immersed in water together with molten zinc.
1.Appearance difference;
2.The surface of electro-galvanized steel is smooth, dense, beautiful and shiny without zinc flower;
3.The surface of the hot-dip galvanized steel is uneven, rough and uneven, shiny and white. Some products have zinc flowers and knocking may because the zinc-iron alloy layer to fall off in small pieces ;
4.Application range difference;
5.Electro-galvanized is suitable for small parts;
6.Hot dip galvanizing is more suitable for large parts ;
7.Zinc coating thickness and weight difference;
8.The thickness of the electroplated zinc layer is about 10um, the zinc layer is thin, and the adhesion is weak; the minimum galvanized amount is 15g / m2 and the maximum is 100g / m2;
9.The thickness of the hot-dip galvanized zinc layer is about 60um, the zinc layer is thick, the adhesion is strong, and the zinc layer is not easy to fall off; the minimum amount of galvanizing is 40-60g / m2 on both sides and the maximum is 600g g / m2 ;
10.Corrosion resistance and zinc coating structure difference;
Product | Galvanized Steel Coil |
Grade | SS400,S235JR,S275JR,A36,etc |
Standard | ASTM,BS,GB,JIS,etc |
Width | 14.5~1800mm,or as required. |
Thickness | 1.2~16mm, or as required. |
Surface | Black painted,PE coated,Galvanized,Color coated,Anti rust varnished,Anti rust oiled,etc. |
Technique | Cold Rolled |
Application | 1.Buildings and constructions: roofing, ceilings, gutters, venting lines, indoor decorations, window frames, etc. |
Shipping | 1)Shipping by containers |
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