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Product Description
Hot-dip Galvanized Steel Sheet
Hot-dip galvanized sheet is made by immersing the steel sheet in a molten zinc bath at about 500 °C to attach a zinc layer to the surface. This is the continuous galvanizing process. It will form a protective zinc layer on the surface so that it has good paint adhesion and weldability. It is the most widely used and cost-effective method to prolong the service life of steel sheets.
Electro-galvanized Steel Sheet
Electro-galvanizing, also known as cold galvanizing, uses electrolysis to form a uniform and dense layer on the surface of the metal. The anti-corrosion zinc layer can protect steel parts from oxidation corrosion. Also, it can meet decorative purposes. But the zinc layer of the electro-galvanizing steel sheet is only 5-30 g/m2. So its corrosion resistance is not as good as hot-dip galvanized sheets.
Difference Between Hot-Dip and Electro-galvanized Steel Sheets
The zinc coating thickness is one of the most important factors matters corrosion resistance. The greater the zinc layer thickness, the better the corrosion resistance. Generally, the thickness of hot-dip zinc coating is more than 30 g/m2, or even as high as 600 g/m2. While the electro-galvanized zinc layer is only 5~30 g/m2 thick. So the former steel sheet is much more corrosion resistant than the latter one. At Wanzhi Steel, the maximum zinc layer is 275 g/m2 (z275 galvanized steel sheet).
The hot-dip galvanized steel sheet is galvanized in a molten zinc bath at about 500 degrees, while the electro-galvanized steel sheet is processed at room temperature by electroplating or other methods. That's why electro-galvanizing also refers to the cold galvanizing process.
The surface of the electro-galvanized steel sheet looks smoother than hot-dip galvanized sheets. But its adhesion is not as good as that of the hot-dip galvanized sheet. If you want only one side galvanized, you can choose the electroplating method. However, if adopting hot-dip galvanizing.
Specifications
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Product Name
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Galvanized Steel Sheet /Plate
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Grade
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DX51D+Z,DX52D+Z,DX53D+Z,DX54D+Z,DX56D+Z
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S250GD+Z,S280GD+Z,S350GD+Z,S550GD+Z
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SGCC,SGCD,SGCE
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Standard
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ASTM,AISI ,JIS,DIN,GB,EN,etc.
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Zinc coated
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30-275g/m2
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Spangle
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Large Spangles,Regular Spangles,Small Spangles,Zero Spangles
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Surface treatment
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Chromated,oiled/non-oiled and anti-finger printing
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Thickness
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0.3-3.0 mm or as required
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Width
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600-1250 mm or as required
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Coil weight
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3-8 tons
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MOQ
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5 TON
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ID
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508-610 mm
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Substrate
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Cold rolled ,Hot rolled
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Tolerance
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Thickness:±0.01mm
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Width:±2mm
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Packaging
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Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
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Application
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construction,decoration,hardware,electric appliances,machinery and other industrial and
civil purposes,such as electronic capacitor,composite cooker,rice cooker,refrigerator, computer casting,telecommunication,equipment,lamp shade,air conditioner,cosmetics cover and so on. |
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Container
size |
20ft GP:5898MM(Length)*2352mm(Width)*2393mm(High)
40ft GP:12032mm(Length)*2352mm(Width)*2393mm(High) 40ft HC:12032mm(Length)*2352mm(Width)*2393mm(High) |
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STEEL
GRADE
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CHEMICAL COMPOSITION %
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MECHANIC PROPERTY
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C.B OF COATING
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C
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Si
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Mn
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S
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p
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T.S
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Y.S
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E.L
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||
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x103
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x103
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x102
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x103
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x103
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Mpa
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Mpa
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%
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d=180
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JIS G3302
SGCC
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12
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30
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41
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31
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21
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480
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300
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13
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OK
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JIS G3302
SGCH
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12
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10
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21
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18
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6
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680
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650
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20
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OK
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ASTM 653
CS.B
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29
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30
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60
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35
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30
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386
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250-380
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20
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OK
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DX51D+Z
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20
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21
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18
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1.8
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11
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355
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245
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38
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OK
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G550
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12
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6
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73
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5
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17
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715
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654
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8
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OK
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Product Process
Product Application
Automobile: body plate, radio, fan, air filter, filter, fuel tank
Household appliances: refrigerator, washing machine, dryer, air conditioner, video recorder, CD player, color TV, tape recorder,microwave oven, stereo
Office machines: copiers, computer cases, printers, monitors, telex machines
Architecture: doors, walls, partitions, keels
Production machinery: agricultural machinery, industrial robot
Clean industry: operating room wall decoration
Others: distributor, oil storage tank, motor cover, steel furniture base plate
Packing&Delivery
Packaging Details
Package: standard export shipping packaging or your requirements for steel plates
Port: Shanghai/Qingdao/Tianjin/Wuxi
Lead time:
| Quantity(tons) | 1 - 50 | 51 - 100 | >100 |
| Lead time (days) | 7 | 15 | To be negotiated |
Company Information
Tianjin Youfa Steel Co., Ltd. is a manufacturer specializing in the research and development, production, sales and service of carbon steel coils, galvanized sheet coils, carbon steel pipes, galvanized pipes, alloy pipes and seamless pipes. There is inventory support to meet the requirements of timely delivery. In recent years, our company has introduced a series of advanced equipment such as flying shears, polishing machines, pipe making machines, and uncoilers.
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Main Product:
Seamless Steel Pipe,
Welded Steel Pipe,
Galvanized Steel Pipe,
Square Tube,
Steel Section,
Steel Plate
