Surface Display of Galvanized steel coil
Surface state of Galvanized steel coil: Due to different treatment methods in the coating process, the surface state is different, forming Zero spangle, small spangle, Regular spangle and big spangle .
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Regular spangle zinc coating |
In the normal solidification process of the zinc layer, the zinc crystal grains are freely grown to form a coating having a distinct zinc flower morphology.
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small spangle zinc coating |
During the solidification of the zinc layer, the zinc grains are artificially restricted to form as fine a zinc coating as possible.
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Zero spangle zinc coating |
By adjusting the chemical composition of the plating solution, there is no visible visible zinc flower morphology, and the surface is uniformly coated.
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Packaging
1.Generally package:Anti-water paper+strapped with min three strapping strips.
2.Standard exporting package: Anti-water paper and plastic+covered by iron sheet+ strapped with min three strapping strips.
3.Excellent package: Anti-water paper and plastic film+ covered by iron sheet+ strapped with min three strapping strips+fixed on the iron or wooden pallets by strapping strips.
Application
The galvanized steel coil is made of steel and zinc alloy. The galvanizing steel coil can be made very high and needs continuous galvanizing to be finished. The finished galvanized coil has excellent welding properties, and the coating attached to the surface of the galvanized coil also has very good adhesion. Galvanized steel coils play a vital role in the industrial and chemical industries.
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Construction: |
Outdoor applications: roofs, roof structures, rolling doors, kiosks, blinds, gatekeepers, street waiting rooms, air ducts, etc. |
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Electrical appliances: |
refrigerators, air conditioners, electronic stoves, washing machine casings, oil furnaces, etc. |
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Transportation: |
Automotive ceilings, back panels, coamings, car casings, tractors, ship bays, etc. |
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- Range available and production capacity
| Steel Grade | Coating | Yield(MPA) | Tensile(MPA) | Elongation(%) |
| DX51D | Z,ZF | -- | 270-500 | ≥20 |
| DX52D | Z,ZF | 140-300 | 270-420 | ≥22 |
| DX53D | Z,ZF | 140-260 | 270-380 | ≥26 |
| DX54D | Z,ZF | 140-220 | 270-350 | ≥30 |
| S220GD | Z,ZF | ≥220 | ≥300 | ≥18 |
| S250GD | Z,ZF | ≥250 | ≥330 | ≥17 |
| S280GD | Z,ZF | ≥280 | ≥360 | ≥16 |
| S320GD | Z,ZF | ≥320 | ≥390 | ≥15 |
| S350GD | Z,ZF | ≥350 | ≥420 | ≥14 |
| S400GD | Z,ZF | ≥400 | ≥470 | -- |
| S500GD | Z,ZF | ≥500 | ≥530 | -- |
| S550GD | Z,ZF | ≥550 | ≥560 | -- |