Introduction of galvanized coils:
Galvanized steel coils, the steel sheet is immersed in a molten zinc bath to make a sheet of zinc coated on its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating tank with zinc melted to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also manufactured by hot dip method, but immediately after being out of the tank, it is heated to about 500 ℃ to form an alloy coating of zinc and iron. This galvanized coil has good paint adhesion and weldability.
What is DX51D Z275 equivalent to?
DX51D is a European standard, galvanized with 51 steel coil raw materials, equivalent to SGCC. DX51D+Z275 refers to hot-dip galvanizing.
Product name |
Galvanized steel Coil |
Galvanized steel Coil | ASTM,EN ,JIS ,GB |
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); or Customer’s Requirement |
Thickness | 0.10-2mm can customized accordingly your requirement |
Width | 600mm-1500mm, according to customer's requirement |
Technical | Hot Dipped Galvanized coil |
Zinc Coating | 30-275g/m2 |
Surface Treatment | Passivation, Oiling, Lacquer sealing, Phosphating, Untreated |
Surface | regular spangle,misi spangle, bright |
Coil Weight | 2-15metric 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 |
Application | structure construction,steel grating, tools |
Galvanized steel coils production process:
1.Uncoiler
2.Welder
3.Entry Looper
4.Pre-treatment
5.Annealing Furnace
6.Zinc Pot
7.Cooling Tower
8.Water Quench Tank
9.Skin Pass
10.Tension Leveler
11.Passivation Coater
12.Exit Looper
13.Recoiler
The production and processing of galvanized steel coils can be divided into three steps: first, the entire coil is pickled to remove rust and dirt, so that the surface of the galvanized steel strip can achieve a bright and clean effect; after pickling, pass ammonium chloride or zinc chloride It is cleaned in an aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot-dip plating tank for the galvanizing process; after the galvanizing process is completed, it can be put into storage and packaged.
Advantages of galvanized coil:
1. Cost-effective solutions
Compared to GL or color-coated steel coils, galvanized steel coils are the most cost-effective solution but have similar characteristics such as good corrosion resistance, good appearance, etc.
2. Wide range of applications
Galvanized steel coils can be easily processed into different applications. Widely used in construction, home appliances, automobile containers, transportation and other fields.
3. Convenient transportation
Coiled steel is easier to transport than galvanized steel. This way, it will save your shipping costs.
Galvanized coil application: