Technical advantages of Galvanized steel coil
Hot dip galvanized steel coil is a steel sheet product in which a layer of zinc is coated on the surface of a ferrous substrate to improve its corrosion resistance and extend its service life.
From the point of view of the process characteristics of hot dip galvanizing, its own corrosion resistance is superior. Compared with other processes, the zinc-iron alloy layer formed by this process is more compact, more detailed, can effectively block the air and water, reducing the possibility of oxidation occurs, for steel and other protective effect is more obvious, effectively extend the service life.
1. Triple protective coating technology
Using continuous hot-dip coating process (CGL), the zinc layer thickness of 30-275g/m² can be customized to meet the needs of different corrosive environments:
Outer layer: pure zinc protective layer (resistant to mechanical damage)
Middle layer: zinc-iron alloy layer (chemical stability)
Base layer: high-strength steel substrate (bearing core)
2. Intelligent surface treatment system
Surface finish: Ra≤0.8μm (in compliance with ISO 8503-2 standard)
Three appearances are available: no zinc spangles, small zinc spangles, and regular zinc spangles
Special chromate passivation treatment (in compliance with RoHS directive)
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Name |
Galvanized Coil |
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Standard |
EN10147,EN10142,DIN17162,JIS G3302,ASTM A653,JISG3302,ASTM A653M, EN10327,DIN17162,EN10142,EN10292 |
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Grade |
DX51D,DX52D,DX53D,DX54D,S220GD,S250GD,S280GD,S350GD,S350GD,S550GD, SGCC,SGHC,SGCH,SGH340,SGH400,SGH440,SGH490,SGH540,SGCD1,SGCD2,SGCD3, SGC340,SGC490,SGC570,SQ CR22(230),SQ CR22(255),SQ CR40(275),SQ CR(340),SQ CR80(550),CQ,FS,DDS,EDDS,SQ CR33(230),SQ CR37(255),SQ CR40(275),SQ CE50(340),SQ CR80(550) or Customer's Requirement |
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Thickness |
0.12-3.00mm or customer's requirement |
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Width |
100mm-1500mm according to customer's requirement |
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Type of Coating |
Hot Dipped Galvanized Steel(HDGI) |
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Zinc Coating |
30-275g/m² |
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Surface Treatment |
Passivation(C),Oiling(O),Lacquersealing(L),Phosphating(P),Untreated(U),Galvanized,PVC,Black and color painting,transparent oil,anti rust oil |
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Packing |
Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing,side guard piate,then wrapped by seven steel belt or according to customer's requirement |
