China Factory Price SGCC Z90 Z120 Z180 Dx51d GI Sheet Galvanized Steel Sheets
Product Detail
Galvanized sheet refers to a steel sheet coated with a layer of zinc on the surface. Galvanizing is an economical and effective rust prevention method that is often used, and about half of the world's zinc production is used in this process.
According to the production and processing methods, it can be divided into the following categories:
Hot-dip galvanized steel sheet. Dip the thin steel plate into the molten zinc tank to make the thin steel plate with a layer of zinc adhered to its surface. At present, the continuous galvanizing process is mainly used for production, that is, the coiled steel plate is continuously immersed in a galvanizing tank with molten zinc to make a galvanized steel plate;
Alloy galvanized steel. This type of steel is also produced using the hot-dip galvanizing method, but is immediately heated to approximately 500°C after exiting the tank to form a zinc-iron alloy film. This type of galvanized steel exhibits excellent paint adhesion and weldability.
Electrogalvanized steel. Galvanized steel produced using the electroplating method offers excellent workability, but the coating is thinner and its corrosion resistance is inferior to that of hot-dip galvanized steel.
Main Application
Features
1. Corrosion-resistant, easy to paint, form, and spot weld.
2. Widely used, primarily in small appliance components requiring aesthetics. However, it is more expensive than SECC, leading many manufacturers to switch to SECC to save costs.
3. Classification by zinc layer: The size of the zinc flakes and the thickness of the zinc layer reflect the quality of the galvanizing process; the smaller the flakes, the thicker the zinc layer, the better. Manufacturers may also add an anti-fingerprint treatment. Additionally, grades can be differentiated by coating; for example, Z12 indicates a total coating thickness of 120g/mm on both sides.
Application
Galvanized steel sheet and strip products are primarily used in the construction, light industry, automotive, agriculture, animal husbandry, fishery, and commercial sectors.
Roofing and wall materials: Galvanized steel sheet offers excellent weather resistance, resisting rain, snow, UV rays, and other natural factors. It is commonly processed into corrugated steel sheet and pre-painted galvanized steel sheet (a color coating applied over the zinc coating).
Steel structural components: In building steel structures (such as purlins, braces, and keels), galvanized steel sheet can be formed into various profiles through cold bending.
Municipal infrastructure: Galvanized steel sheet is used in the manufacture of municipal infrastructure such as light poles, traffic signs, guardrails, and trash cans. These products are exposed to the elements for extended periods of time, and a galvanized coating effectively prevents corrosion caused by rain, dust, and other factors, thereby reducing maintenance costs.
Automobile body components: Galvanized sheet (especially hot-dip galvanized sheet) is widely used in automotive body panels (such as doors and hood linings), chassis components, and floor panels due to its excellent weldability and corrosion resistance.
Automotive Interiors and Accessories: Some automotive interior support structures and seat frames also utilize galvanized sheet metal to prevent corrosion in humid environments (such as air conditioning condensation).
Galvanized sheet metal is commonly used for interior and exterior decoration of household appliances such as refrigerators, washing machines, air conditioners, and water heaters.
Metal Packaging Containers: Galvanized sheet metal can be used to make various packaging barrels (such as paint cans and chemical raw material barrels). Its airtightness and corrosion resistance prevent leakage and deterioration of contents (especially liquids or corrosive substances).
Packaging Pallets and Shelves: In logistics and warehousing, pallets and shelves made of galvanized sheet metal offer high strength and corrosion resistance, making them suitable for humid warehouse environments and durable even after repeated use.
Agricultural Equipment: Galvanized steel sheet can be used to make greenhouse frames and fences. Its excellent corrosion resistance enables long-term use in the high humidity environment of greenhouses.
Livestock Equipment: Galvanized steel sheet can be used to make livestock fences, feeding troughs, ventilation ducts, etc., protecting against corrosion from animal waste and flushing water, keeping equipment clean and durable.
Mechanical Manufacturing: Galvanized steel sheets are used in machine tool housings, protective covers for mechanical equipment, and pipelines, protecting equipment from oil, moisture, and other corrosive agents in the operating environment, extending their service life.
Power Industry: Galvanized steel sheets are used in substation switchgear enclosures and cable trays. These components must remain stable in the complex environment of power systems, making the protective effect of the galvanized coating crucial.
Parameters
| Technical Standard | EN10147, EN10142, DIN 17162, JIS G3302, ASTM A653 |
| Steel Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490,SGH540, SGCD1, SGCD2, SGCD3, SGC340, 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), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement |
| Thickness | customer's requirement |
| Width | according to customer's requirement |
| Type of Coating | Hot Dipped Galvanized Steel(HDGI) |
| Zinc Coating | 30-275g/m2 |
| Surface Treatment | Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) |
| Surface Structure | Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) |
| Quality | Approved by SGS,ISO |
| ID | 508mm/610mm |
| Coil Weight | 3-20 metric ton per coil |
| Package | Water proof paper is inner packing,galvanized steel or coated steel sheet is outer packing , side guard plate,then wrapped by seven steel belt.or according to customer's requirement |
| Export market |
Europe, Africa, Central Asia, Southeast Asia, Middle East, South America, North America, etc
|
Delivery
FAQ
1. What are your prices?
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact
us for further information.
2. Do you have a minimum order quantity?
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website
3. Can you supply the relevant documentation?
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
4. What is the average lead time?
For samples, the lead time is about 7 days. For mass production, the lead time is 5-20 days after receiving the deposit payment. The lead times become effective when
(1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.
5. What kinds of payment methods do you accept?
30% in advance by T/T, 70% will be before shippment basic on FOB; 30% in advance by T/T, 70% against the copy of BL basic on CIF.
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