DX54D DX53D Galvanized steel sheet
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PRODUCT DESCRIPTION


Galvanized Steel Plate Supplier

the best galvanized steel plates suppliers and manufacturers in China, Our galvanized steel plate production line has an annual production capacity of 300,000 tons and a manufacturing speed of 150m/min.

We can manufacture and sell galvanized steel plates with a width of 800-1250mm and a coating weight of 60-300g/m3.

We manufacture galvanized steel plates according to EN 10346, ASTM A653 standard.

We have sufficient galvanized steel plate stock for fast delivery.


Standard Specification Of Galvanized steel sheet Plate

Thickness0.12-6.0mm
Width600-1250mm
LengthCoil or as Customers' requirement
SurfaceChromated and oiled, and ant-ifinger      
FinishHot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
 ApplicationStructural use ,roofing, corrugated roofing, commercial use, household appliance, industry

Galvanized steel sheet grade

 GradeJIS G3302-94 Q195, Q235,Din17175
SGCC, SGCH,SGC340 SGC400 SGC440 SGC490 SGC570 
SGHC SGH340 SGH400 SGH440 SGH490 SGH540
DX51D DX52D DX53D DX54D
S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD


Mechanical Properties

GradeYield Strengtha,btensile strengthMechanical properties elongation after breaking cr 90n 90
MPaMPaA 80mm %not less thannot less thannot less than
DX51D+Z240~380270~50024--
DX52D+Z140~300270~42026--
DX53D+Z140~260270~38030--
DX54D+Z120~220260~350361.60.18


GradeMechanical Property a,b,c,d
Yield Strengthtensile strengthElongation after breaking A80mm
MPaMPa% not less than
not less thannot less than
S220GD+Z22030020
S250GD+Z25033019
S280GD+Z28036018
S320GD+Z32039017
S350GD+Z35042016

When the nominal thickness of the product is greater than 0.50mm but less than or equal to 0.70mm, the elongation after fracture is allowed to decrease by 2%; when the nominal thickness of the product is not greater than 0.50mm, the elongation after fracture is allowed to decrease by 4%.

Galvanized Coating Layer

Anti-Finger printing ,Chromated, Oiled/ non-oiled

Zn Plating Layer (20-120g/sm)

Cold Rolled Steel Sheet

Spangled galvanized steel sheet is the spangle obtained by the condensation of the zinc coating under normal conditions after galvanizing. It is mainly used in buildings and other places where there is little direct contact with the human body.

Galvanized steel sheets without spangles are mainly produced through a special production process to control the lead in the zinc pot to a certain level, or after the strip steel is out of the galvanized pot, it undergoes special treatment to control the spangles to less than a certain level. Mainly used in home appliance housing. 


Surface Treatment Of Galvanized Steel Plate

Surface treatment typeCodeFeature
Chromic acid treatmentCGood corrosion resistance, suitable for bare state
Chromic acid treatment + oilingSGood corrosion resistance
Phosphoric acid treatment (including sealing treatment)PA certain degree of corrosion resistance, good paint performance
Phosphoric acid treatment (including sealing treatment) + oilingQIt has certain corrosion resistance, good paint performance, and prevents rust during transportation and storage
Phosphoric acid treatment (excluding sealing treatment)TA certain degree of corrosion resistance, good paint performance
Phosphoric acid treatment (excluding sealing treatment) + oilingVHave certain corrosion resistance, good paint performance, and prevent rust
OiledOPrevent rust during transportation and storage
No treatmentMSuitable for immediate painting

Chromate treatment of galvanized steel plates is also called passivation treatment. Through passivation treatment, the surface structure and gloss of the galvanized layer can be improved, the corrosion resistance and service life of the galvanized layer can be improved, and the bonding force of the coating and the base metal can be improved.

The purpose of oiling galvanized steel plates is a protective layer is formed on the surface of the steel coil to prevent the surface from rusting. 


Advantages

1. Galvanized steel plate is widely used in various environments and has a long anti-corrosion life. The anti-corrosion life is different in different environments.

2. The treatment cost is low, and the anti-corrosion cost of galvanized steel plate is lower than that of other paint coatings.

3. Durable. In suburban environment, the standard galvanized antirust coating does not need to be repaired and can be maintained for more than 50 years. In urban or offshore areas, the standard galvanized antirust coating can be maintained for 20 years without repair.

4. Good reliability. The zinc coating and steel are metallurgically combined and become a part of the rigid surface, so the durability of the coating is relatively reliable. 

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