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Hot Dipped Galvanized/Galvanneal Steel Coils Zinc Coated 40-400g
Introduction of Hot Dipped Galvanized/Galvanneal Steel Coils
Galvanized steel coil, immersing the thin steel plate in the molten zinc bath, and adhering a layer of zinc thin steel plate on the surface. It is mainly produced by the continuous galvanizing process, that is, the coiled steel plate is continuously immersed in the zinc-melted plating tank to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also made by the hot-dip method, but it is heated to about 500 °C immediately after exiting the tank to form an alloy film of zinc and iron. This galvanized steel coil has good paint adhesion and weldability.
The Advantage of Hot Dipped Galvanized/Galvanneal Steel Coils
1,The zinc layer has uniform thickness and strong adhesion. No peeling and good corrosion resistance.The Surface is very smooth and clean,zinc flower is symmetrical,beautiful.
2,Galvanized Coil With the cold rolled steel of different strength and thickness as substrate, it is produced through applying the zinc coated on both faces by hot dip process.
3,Large inventory All products are packed and warehousedafter passing the inspection, and deliveredin one order. So as to ensure that the customer's products can be delivered in the shortest time. You don't have to worry about the quality and transportation of the goods at all.
Application of Hot Dipped Galvanized/Galvanneal Steel Coils
Galvanized steel coils(GI steel coils) can be used for widely as follows,
(1)In the construction industry: to manufacture exterior and Interior products such as metal shingles, corrugated sheeting, sandwich panels, profiles, metallic ceilings, skirting boards, decorative panels inside heated and non- heated rooms, elevators, doors window shutters, shelves etc.
(2)In the automotive industry: to manufacture external and internal car body parts (car doors, car boots, oil filters, dashboards, windscreen wipers etc.
(3)In manufacture of home appliances, furniture, and consumer goods: metallic furniture, lighting equipment, shelves, radiators, сar doors, car boots etc.
Specifications of GI-Hot Dipped Galvanized/Galvanneal Steel Coils/Sheet
| Width | 600mm-1750mm |
| Thickness | 0.13mm-5.0mm |
| Length | customized |
| Zinc Coating | Z40gr/m2-Z400gr/m2(both side total coating thickness) |
| Surface | Skin-pass/non Skin-pass |
| Chemical treatment | Chromated(Cr 3+,6+,0+) |
| Spangle | Regular/Zero/Big |
| Oil | Slight Oiled/Dry |
| Grade | JIS G3302-SGCC-SGC570,SGCH(full hard-G550),SGHC-SGH540 |
| Packing | Export standard packing ,3 Layers-kraft paper outside+waterproof plastic film in the middible+steel plate vovered with strips |
| Coil Weight | 3-14 tons |
| Coil ID | 508/610mm |
| HRB | Soft Hard(<60),Medium Hard(60-85),Full Hard(85-95) |
| Rar Materials | Cold rolled base |
| Usage | Grade | Yield Strength (MPA) | Tensile Strength (MPA) | Elongation rate % |
| Punching galvanized steel | DX51D+Z | ~ | 270-500 | >=20 |
| DX52D+Z | 140-300 | 270-420 | >=22 | |
| DX53D+Z | 140-260 | 270-380 | >=26 | |
| DX54D+Z | 140-220 | 270-350 | >=30 | |
| Structure galvanized steel | S220GD+Z | >=220 | >=300 | >=18 |
| S250GD+Z | >=250 | >=330 | >=17 | |
| S280GD+Z | >=280 | >=360 | >=16 | |
| S320GD+Z | >=320 | >=390 | >=15 | |
| S350GD+Z | >=350 | >=420 | >=14 | |
| S400GD+Z | >=400 | >=470 | ~ | |
| S500GD+Z | >=500 | >=530 | ~ | |
| S550GD+Z | >=550 | >=560 | ~ |
Spangle is formed during the hot-dip galvanizing process. The size, brightness, and surface of spangles mainly depend on the composition of zinc layer and the cooling method. According to the size, it includes small spangles, regular spangles, big spangles, and free spangles. They look different, but the spangles almost will not influence the quality of galvanized steel. You can choose according to your preference and purpose.
Photos Display of GI-Hot Dipped Galvanized/Galvanneal Steel Coils/Sheet