Galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Zinc coated is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed solution of ammonium chloride and zinc chloride. And then sent to the hot-dip plating bath. Galvanized has the advantages of uniform coating, strong adhesion and long service life.
| Standard | EN/ DIN/ JIS/ ASTM Standard |
| Sizes | Thickness:0.12mm-6.0mm |
| Width: 660mm-1500mm |
Parameter of Zinc Coated Galvanized Steel Coil
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, SGH540； SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550) |
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 seven steel belt.or according to customer's requirement |
Manufacturing Process
Diagram of Steel Surface Coating And Layers
Surface Structure
Features of Zinc Coated Galvanized Steel Coil
Anticorrosive:13 years in heavy industrial areas,50 years in the ocean,104 years in the suburbs and 30 years in cities.
Cheap:The cost of hot-dip galvanizing is lower than that of other coatings.
Reliable:The zinc coating is metallurgically bonded to the steel and forms part of the steel surface,so the coating is more durable.
Strong toughness:The galvanized layer forms a special metallurgical structure that can withstand mechanical damage during transportation and use.
Comprehensive protection:Every part of the plated piece can be galvanized,and is fully protected even in depressions,sharp corners,and hidden places.
Save time and energy:Galvanizing process is faster than other coating methods.
Industries Using Steel
