Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of dx51d hot-dip galvanized steel plate in China. Welcome to wholesale customized dx51d hot-dip galvanized steel plate at low price from our factory. If you have any enquiry about free sample and cheap products, please feel free to email us.
About GNEE：
Galvanizing method of hot-dip galvanized steel
1. Hydrogen reduction galvanizing. Hydrogen reduction galvanizing was invented in 1937. Hydrogen reduction hot-dip galvanizing laid the foundation for modern continuous hot-dip galvanizing. The appearance quality and bonding strength of the galvanized layer of products using the hydrogen reduction method are better than those of solvent-based galvanizing.
In the reduction galvanizing process, the strip steel enters the heating reduction furnace after being pickled, and hydrogen is used to reduce the oxide film produced after pickling. During the heating reduction process, a spongy reduction layer is formed on the surface of the steel plate. After entering the zinc pot, It can produce a layer of zinc-iron alloy layer with good bidirectional bonding force and uniformity, which greatly increases the adhesion of the zinc layer. This also determines that the energy consumption cost of the galvanizing method is higher.
2. Ammonium chloride solvent galvanizing Ammonium chloride solvent galvanizing was invented in 1837. For products produced using the ammonium chloride solvent method, there is no heating reduction process in the ammonium chloride solvent method for galvanizing, and the appearance quality and surface bonding force of the galvanized layer are slightly worse than the hydrogen reduction method for zinc plating. This also determines that the energy consumption cost of its galvanizing method is lower than that of hydrogen reduction galvanizing.
Dx51d galvanized sheet offers strength, durability and corrosion resistance, making it ideal for racking applications. The zinc coating on dx51d galvanized sheets offers excellent corrosion resistance, protecting the sheets from rust and deterioration, which is ideal for shelves as they are often exposed to moisture, moisture and potential corrosion in matter. The galvanized coating provides a protective barrier that helps prevent rust and makes cleaning and maintenance relatively simple.
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Product |
Galvanized Steel Coil、plate、sheet |
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Standard |
ASTM, BS, EN, DIN, GB, JIS, ASME, etc. |
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Grade |
Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S450GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, SGH540, SGCD1, SGCD2, SGCD3, 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), SQ CR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement |
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Thickness |
0.12~3.00 mm (cold rolled)，1.20~4.60 mm (hot-rolled) |
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Width |
600mm-1500mm or 914mm/1000mm/1200mm/1219mm/1220mm |
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Tolerance |
Thickness: ±0.01 mm |
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Width: ±2 mm |
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Coil ID |
508 mm - 610 mm |
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Coil weight |
3 Tons - 8 Tons or as client requirement |
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Zinc coating |
30g/m² - 600g/m² |
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Spangle |
Big spangle,Regular spangle,Mini spangle,Zero spangle |
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Surface treatment |
Oil,Passivation, Chromated, Skin-passed, Anti-finger Print |
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HS code |
72104900.00 |
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Loading Port |
Tianjin Port, Qingdao Port, Shanghai Port |
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Payment Term |
L/C or T/T(30% deposit) |
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Delivery time |
Within 15 workdays after deposit received |
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Package |
plastic film + water proof paper + steel plate + packing steel strip |
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Application |
Widely used in road, railway, civil construction, water conservancy construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc. |
Zinc layer properties of galvanized steel：
The electro-galvanized layer cannot form zinc flowers, but the hot-dip galvanized layer has zinc flowers. The formation process is as follows: after the galvanized strip comes out of the zinc pot, a large amount of zinc liquid is blown back to the zinc pot by the air knife. At this time, there is still a pure zinc layer on the surface of the strip, which is attached to the surface of the steel plate in a liquid state, forming a large number of crystallization nuclei on the surface of the steel plate. As the steel plate rises and cools, the crystallization nuclei slowly grow into zinc flowers. The faster the cooling rate, the smaller the spangles, and the slower the cooling rate, the larger the splatters.
Flowerless galvanized sheet:
In fact, zinc flowers only have ornamental value and have no actual use value. On the contrary, they are not good at anti-corrosion. In developed countries, small zinc flowers and no zinc flowers are used for galvanized steel sheets.
Dx51d Galvanized Sheet:
Dx51d Galvanized sheet plate:
Galvanized metal sheets:
Galvanized mild steel plate:
About GNEE:
GNEE Metal Products Co., Ltd. is a leading galvanized steel and alloy steel materials company in China. The main products include galvanized coils, galvanized sheets, PPGI, PPGL, corrugated sheets, galvanized roof sheets, etc.
FAQ:
1. What are the uses of galvanized sheets?
Modern steel frame buildings use galvanized steel. Galvanized steel is used to make balconies, verandas, stairs, ladders and walkways. Galvanized metal is best for outdoor projects.
2. What is galvanized sheet made of?
Galvanized steel is galvanized carbon steel. Hot dip plating is the most widely used galvanizing method. In the hot dip plating process, carbon steel is immersed in a bath of molten zinc.
3. Is galvanized steel better than steel plate?
Generally speaking, galvanized steel is more ductile and easier to handle than stainless steel.
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