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Galvanized Steel Coil

Product Introduction of Galvalume Steel Coil

The coating types of hot-dip galvanized products include pure zinc coating and alloyed coating, and can be supplied in the form of equal thickness plating and differential thickness plating.
In line with the service concept of “people-oriented, environmental protection”, Baowu can produce hot-dip galvanized products with no lead in the zinc layer, and the surface structure shows zero spangle.
The hot-dip galvanized substrate raw materials are provided by the cold and hot rolling production line, thus ensuring the stability of the chemical composition of the raw materials, the purity of the steel and excellent dimensional accuracy.

DX51D Galvanized Steel Coil

DX51D Galvanized Steel Coil Galvanized steel is mild steel with a coating of zinc. The zinc protects the steel by providing cathodic protection to the exposed

DX52D Galvanized Steel Coil

DX52D Galvanized Steel Coil Properties of galvanized steel coils: Low carbon steel grades are mainly used, which require good cold bending and welding properties, as well

DX53D Galvanized Steel Coil

DX53D Galvanized Steel Coil Galvanized coils are made of hot-rolled coils, which are rolled at room temperature below the recrystallization temperature, including plates and coils, and

DX54D Galvanized Steel Coil

DX54D Galvanized Steel Coil Galvanized coils have different surface conditions due to different treatment methods in the coating process, such as ordinary zinc coils, fine zinc

S550GD Galvanized Steel Coil

S550GD Galvanized Steel Coil Galvanized steel coil has two advantages, one is adhesion and the other is weldability. It is precisely because of these two advantages

Hot-Dip Galvanized Steel Coil

Hot-dip Galvanized Steel Coil Hot-dip galvanized steel coil: The thin steel coil is immersed in a bath of molten zinc to make a thin steel coil

Galvalume Steel Coil Available Specification
Q195 Q235 Q345
SGHC SGH340 SGH400 SGH440 SGH490 SGH540
S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD
SS230 SS250 SS275
600mm to 1500mm
0.125mm to 3.5mm
Zinc coating
40g/m2 to 275g/m2
Coil weight
3 tons to 6 tons
Coil ID
508mm or 610mm
Surface treatment
Unoil,Dry,Chromate Passivated, Non-chromate Passivated
Regular Spangle, minimum Spangle,Large Spangle, Zero Spangle
15-25 Days
Big Medium Small Zero
Zinc Coating
Coil Weight
3-8 Tons
Galvanized Steel Coil Supply standard and grade
Material categoryBaosteel Enterprise StandardGradeExplanation
Mild and/or Ultra Low Carbon SteelQ/BQB 420DC51D+Z DC51D+ZFGeneral uses
DC52D+Z DC52D+ZFStamping use 
Ultra Low Carbon SteelDC53D+Z DC53D+ZFDeep drawing use 
DC54D+Z DC54D+ZFExtra deep drawing
DC56D+Z DC56D+ZFUltra-deep drawing
Carbon steel or low alloy steelS220GD+Z,S220GD+ZF S250GD+Z,S250GD+ZF S280GD+Z,S280GD+ZF S320GD+Z,S320GD+ZF S350GD+Z,S350GD+ZF S550GD+Z,S550GD+ZFStructural uses
Phosphorus-added high-strength steelH220PD+Z,H220PD+ZFCold forming uses
low alloy high strength steelH300LAD+Z,H300LAD+ZF H340LAD+Z,H340LAD+ZF H380LAD+Z,H420LAD+Z
Ultra low carbon high strength steelH180YD+Z,H180YD+ZF H220YD+Z,H220YD+ZF H260YD+Z,H260YD+ZF
Bake-harden high-strengthH180BD+Z,H180BD+ZF H220BD+Z,H220BD+ZF H260BD+Z,H260BD+ZF
Galvanized Steel Coil Classification and code of surface structure
surface structureCode nameCharacteristicUse
Normal SpangleZAfter galvanizing, the zinc layer is condensed under normal conditions and the spangles are obtained.General uses
Small spanglesXA surface formed by controlled condensation of the zinc layer, exhibiting fine spangles that are smaller than normal spanglesFor applications where normal spangles cannot meet surface appearance requirements.
Regular SpanglesGSurface structure obtained by special finishing treatment.For applications requiring high surface quality, e.g. as color-coated substrates.
Smooth small spanglesGX
Zero SpanglesNA specific production process is used to make the surface of the coating free of visible spangles.
Zinc-iron alloyRZincless, gray, generally dull.Suitable for further painting.
Application of Galvanized Steel Coil

Construction Industry

Roof,roof components,panels,balcony window,newsstands,warehouse,rolling door, heaters,drainage,etc.

Household appliances

refrigerators,washing machines,switch cabinet, air conditioning, microwave oven,bread machine,copier,vending machines,electricfans.vacuum cleaners,etc

Furniture industry

lampshade, wardrobe, desk, bookcase, counter, signs, medical equipment, etc

Transportation industry

cars,car shell, carriage board ceiling,tractor,trams,container, highway fence,ships bulkhead,etc
Types of galvanized steel coils

According to the production and processing methods can be divided into the following categories.



Hot-dip galvanized steel sheet

The thin steel plate is dipped into the molten zinc bath, so that the surface of the thin steel plate adheres to a layer of zinc. At present, the main use of continuous galvanizing process, that is, the rolls of steel continuously dipped in the molten zinc bath made of galvanized steel.

Alloyed galvanized steel sheet

This type of steel is also manufactured by the hot dipping method, but immediately after leaving the bath, it is heated to about 500°C to produce an alloyed film of zinc and iron. This type of galvanized steel has good paint adhesion and weldability.

Electro-galvanized steel sheet

This galvanized steel sheet is manufactured by electroplating method with good processability. However, the coating is thin and the corrosion resistance is not as good as that of hot dip galvanized steel.

Single-sided & double-sided poorly galvanized steel sheets

Single-sided galvanized steel sheet, i.e., a product that is galvanized on one side only. It has better adaptability than double-sided galvanized steel in terms of welding, painting, rustproof treatment and processing. To overcome the shortcomings of uncoated zinc on one side, there is another type of galvanized steel with a thin layer of zinc on the other side, i.e. double-sided galvanized steel.

Alloy, composite galvanized steel sheet

It is made of zinc and the other metals such as aluminum, lead, zinc, etc. alloy or even composite plating into the steel plate. This kind of steel sheet has both excellent rustproof performance and good coating performance.

Company Profile

        Shandong Baowu Steel Group Co., Ltd. located in Shandong, we have convenient transportation.our company is a large-scale enterprise specializing in the production of seamless steel pipes, welded steel pipes, stainless steel pipes and stainless steel products. We mainly produce including stainless steel plates/coils and profiles, Steel plate, alloy steel plate, wear-resistant steel plate,Carbon plate, square tube, galvanized tube, non-ferrous metal, PPGI and PPGL and other materials. Our company also has cooperative factories, like TPCO, TISCO, ZPSS, Tianjin Iron and Steel Group, HBIS Group, and Steel, Shandong Iron and Steel Group.We have rich experience in foreign trade and have established long-term cooperative relations with many well-known foreign companies.

Packaging of galvanized steel coil

Export standard package,bundled or be required.
The inner size of container is below:
20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)
40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)
40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)

Delivery Details 7-15 dyas,or according to the order quantity or upon negotiation.


We are a factory as well as a professional manufacturer established for more than 20 years and export over 15 years.

Can provide small samples for free. Customized sample takes 5-7 days.

Small trial order takes 5-7 days. Container order need 15-20 days.

Cover with PE film , wrap with waterproof paper, pack with wooden plate,belt by steel strip, fasten on pallet.

All products we supply is primary as you need, Our company is certificated to CE, and every product will be tested for 4-5processes. We welcome customers or the third party inspection agencies to come to our factory for inspection.

Usually 30% deposit by TT in advance and balance against copy pf BL or L/C at sight.

Hot Products
Seamless Steel Pipe
Seamless Steel Pipe
Stainless Steel Coil
Stainless Steel Coil

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