Galvanizing Steel coil is a thin steel sheet dipped into a molten zinc tank to make its surface adhere to a layer of zinc.The main use of continuous galvanized process production, that is, the roll of steel plate continuous dip in the melting zinc plating tank made of galvanized steel.
Galvanized coil has the characteristics of strong corrosion resistance and good surface quality, and is widely used in construction, home appliances, automobiles, containers, transportation and other fields.
| Prodution |
Galvanized steel coil |
| Grade |
DX51d/JIS G3302/SGCC/Etc |
| Thickness |
0.4-2.0mm |
| Type of coating |
Galvanized |
| Zinc coating |
Z30--275gsm |
| Surface structure |
zero spangle / minimized spangle / regular spangle/ big spangle |
| Surface treatment |
Phosphating, passivation, oiling and anti-fingerprint, self-lubricating anti-fingerprint |
| Package |
Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is the tray)or According to Your Requirements |
There are many factors affecting the size of zinc flowers. When the zinc liquid composition has the conditions for the formation of zinc flowers, the following factors will affect the size of zinc flowers:
(1) Raw material: the thicker the raw material steel plate, the smaller the surface roughness, the larger the zinc flower.
(2) Cooling rate: the faster the cooling rate, the shorter the crystal growth time, the smaller the zinc flower.
(3) Number of crystal nuclei: The size of zinc flower is closely related to the number of crystal nuclei of zinc flower. When the surface of steel base is rough or the surface cleanliness is poor, the zinc flower is relatively small. Zinc grains are formed on steel base, and the more nuclei there are, the smaller the zinc flowers will be. This principle is used in the production process of small zinc flowers.
(4) Other factors (production environment, etc.).
Wraped by waterproof paper and plastic film,packed by iron sheet and steel strip. with iron edge protector,or as per customers request.
We stick to the principle of "quality first, service first, continuous improvement and innovation to satisfy the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our service, we provide the products with good quality and reasonable price.
Galvanized Steel Sheet is defined as a carbon steel sheet coated with zinc on both sides. Galvanized Steel Coil Importer produce galvanized steel with two main processes: continuous hot dip galvanizing and electrogalvanizing.
The hot dip process includes passing the steel through a molten zinc bath, and the electrogalvanizing process includes applying zinc through electrolytic treatment. As a result, the zinc layer is firmly adhered to the base metal through the iron-zinc bonding layer. Our hot-dip galvanized products are manufactured in accordance with specifications, and our electro-galvanized products comply with the specifications.
Galvanizing is one of the most effective and economical methods for protecting bare steel from corrosive environments. Zinc is not only a barrier between steel and the environment, but also sacrifices itself to protect the steel plate below. When two different metals are in contact and coupled with water and oxygen, sacrifice or current protection occurs. Zinc preferentially corrodes iron in steel. This protection prevents corrosion of the steel in areas not covered by zinc. Therefore, the diffusion of corrosion from cutting edges, drilling holes, etc. is minimized.
Why do galvanized coils cause white rust and black rust?
The causes of white rust and black spots are as follows: black spots are formed by further oxidation of white rust.
The main causes of white rust are:
(1) Poor passivation, insufficient or uneven passivation film thickness;
(2) The surface is not oiled or there is residual moisture on the strip surface;
(3) The surface of the strip steel contains moisture during coiling;
(4) The passivation is not completely dried;
(5) Damp or rain during transportation or storage;
(6) The storage time of finished products is too long;
(7) The galvanized sheet is in contact with or stored together with other corrosive media such as acid and alkali.
The finished product is allowed to be stored in the warehouse for up to three months to avoid oxidation caused by long-term storage. Therefore, in order to ensure the quality of use and prolong the service life of galvanizing, we should avoid the above factors that cause rust.
Shandong Baotai Steel Co., Ltd. is located in Jinan, the capital of Shandong Province. Mainly produce stainless steel, carbon steel, galvanized steel, PP G I, PP G L. Our team has been dedicated to the steel industry for 20 years. The company has established long-term and close cooperative relations with well-known domestic iron and steel enterprises. At the same time, the company′s annual stock reserve exceeds 200, 000 tons, which can guarantee a short delivery time. Baotai Steel provides services to domestic government construction projects, Chinese listed companies and state-owned enterprises and other large enterprises. At the same time, Baotai Steel has long-term cooperative relations with many countries in Russia, the Middle East, Southeast Asia, South Africa, South America and other regions. With high-quality products, low prices and high-quality services, it has been highly praised by customers. Customers from different countries signed agency agreements with Baotai Iron and Steel and became Baotai Iron and Steel′s agents. Baotai Steel′s service team provides you with professional and high-quality services online 24 hours a day. At the same time, Baotai Steel also insists on customer-centric win-win, and looks forward to becoming a high-quality enterprise you can trust.
1. Q: Are you a factory or a trading company?
A: We are a factory.
2. Q: Which countries do you export to?
A: South Afirca,Tansania,Congo,Burking Faso,UAE,Philippines,etc.
3. Q: Do you offer sample?
A: Yes,we provide free sample if available.But customers are required to pay the freight.
4. Q: What's the MOQ?
A: 25 Tons. Because a container needs at least 25 tons to fill.
5. Q: Why are your price higher than other salers ?
A: We guarantee that our price is lowest under the same quality.
6. Q: What's your payment method?
A: 30% T/T for deposit and the balance against the copy of B/L within 7 days.
7. Q: What's your delivery time?
A: 15-30 days after receive deposit.
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