Product Description
Galvanized steel coil is a steel material with a zinc-coated surface. It is made primarily by dipping thin steel sheets into a molten zinc bath, which causes a layer of zinc to adhere to the surface, and then undergoing a series of processes such as annealing, flattening, and shearing.
There are two main types of galvanized steel coil: hot-dip galvanized sheet and electro-galvanized sheet. Hot-dip galvanized sheet is a material produced by a continuous hot-dip galvanizing process using hot-rolled or cold-rolled steel strip as a substrate. This type of galvanized sheet is characterized by strong corrosion resistance, good surface quality, access to deep processing, economy and practicality, etc. It is mainly used in the fields of construction, home appliances, automobiles, containers, transportation and household industry.
Electro galvanized sheet is produced by electrolytic method of coating a layer of zinc on the surface of steel plate. In addition, there is also the method of coated galvanization, which is mainly used to protect steel by applying a layer of zinc on the surface of the steel.
Overall, galvanized steel coils help protect steel from atmospheric corrosion and are successfully used in industries that have stringent requirements for corrosion resistance, durability, strength, and appearance, and can be shaped or have a variety of coatings applied.
Product Detials
Product Parameters
| Product Name |
Galvanized Steel Coil |
Edge |
Slit edge |
| Zinc Coating |
20~275 g/m2 |
Technology |
Cold Rolled |
| Thickness |
0.12~4 mm |
Stock |
Stock |
| Width |
600~1500 mm |
Coil Weight |
3-5 tons/Coil |
| Length |
as Customer′s Request |
MOQ |
1 ton |
| Tolerance |
± 0.1 mm |
Transport Package |
Standard Sea Packing |
| Color |
Galvanized Silver |
Feature |
Durable, Rust and Corrosion Resistance |
| Trademark |
NAJIN |
Size |
Can be customized |
Product Display
Product Inspection
Testing methods for galvanized steel coils include the following:
Coating quantity test: The main purpose is to check the coating quantity of galvanized products to meet the specification requirements. Specific test items include double-sided three-point test average coating amount (including double-sided single-point minimum coating weight) and single-sided single-point coating amount.
Metallographic microscope method: This is a commonly used method to test the thickness of galvanized coating.
X-ray fluorescence method: again, a commonly used method to detect the thickness of galvanized layer.
Magnetic Induction Method: This is one of the most commonly used methods to detect the thickness of galvanized coating.
Specific gravity method: is also a method used to measure the thickness of galvanized layer.
In addition, it is also necessary to pay attention to some inspection standards of galvanized coils, for example, coils that can not be used after repair, coils with a height of 10 mm or more of the bulge, coils with serious edge damage, coils with production line downtime or abnormalities, coils with zinc layer flaking in the whole width and sheet, and coils with continuous holes, etc. need to be dealt with as scraps.
Packaging & Shipping
Product Application
Company Profile
Shandong Najin Heavy Industry Group Co.,Ltd founded in 1998, covers an area of 200,000 square meters, with more than 500 employees, is a company specializing in the building materials industry. The company is an agent of Shandong Iron and Steel, Laiwu Iron and Steel, Handan Iron and Steel, Anshan Iron and Steel, Rizhao Iron and Steel, Puyang and other steel mills, and has a first-hand source of goods. Our company mainly engaged in producing and exporting Hot rolled steel coil, Cold rolled steel coil, Checkered steel plate, Flat steel, Steel Rod, Steel pipe.Meanwhile, group company imported the most advanced technology from Germany, Japan, Belgium and America, UK etc. For iron-smelting, and processing steel sheet, also equipping with the complete automatic system, become the advanced and biggest professional manufacturer in China Currently the Group holds the Tubes Mill and production lines of galvanized, galvalume, aluzinc and prepainted steel, with the annual production capacity of 2 million tons.
FAQ
Q :Are you a manufacturer or trading company?
A: We are a professional manufacturer with 2 million tons of steel annually in China. We have passed the factory inspection by
various international organizations and have our own sales team. Welcome to seeing and inspecting our factory.
Q: Do you have quality control system?
A: Yes,we have iso,bv,sgs certifications and our own quality contorl laboratory.
Q: How long is your delivery time?
A: Within 7~15 days after receiving the deposit or L/C at sight. Longer lead time will be required for special designed product
Q: Do you provide samples ? Is it free or extra?
A:Yes, we could offer the sample for free charge but the delivery charges will be covered by our customers.
Q: Do you provide after-sale service?
A: We provide after-sales service and offer 100% guarantee on our products.
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