Product Description
The galvanized coil is a thin Steel Plate in which a thin steel plate is immersed in a molten zinc bath to adhere a layer of zinc to the surface.Galvanized steel is a surface treatment technique that coats a layer of zinc on the surface of a metal, alloy or other material for aesthetics, rust prevention, and the like. The main method used is hot-dip galvanizing. Zinc is easily soluble in acid and soluble in alkali, so it is called an amphoteric metal. Zinc hardly changes in dry air. In moist air, a dense zinc carbonate film is formed on the zinc surface. In the atmosphere containing sulfur dioxide, hydrogen sulfide and marine, the corrosion resistance of zinc is poor, especially in the atmosphere containing high temperature and high humidity containing organic acid, the zinc coating is easily corroded.
The standard electrode potential of zinc is -0.76V. For steel substrates, zinc coating is an anodic coating. It is mainly used to prevent corrosion of steel. Its protective performance has a great relationship with the thickness of the coating. After passivation, dyeing or coating of the photoresist, the zinc coating can significantly improve its protection and decorative properties.
Product Specification
Product | Dx51d Z275 Gi Galvanized Steel Coil for Roofing |
Standard | ASTM, Bs, EN, DIN, GB, JIS, ASME, etc. |
Grade | Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S450GD, 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), SQ CR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer’s Requirement |
Thickness | 0.12~3.00 mm (cold rolled),1.20~4.60 mm (hot-rolled) |
Width | 600mm-1500mm or 914mm/1000mm/1200mm/1219mm/1220mm |
Tolerance | Thickness: ±0.01 mm |
Width: ±2 mm |
Coil ID | 508 mm - 610 mm |
Coil weight | 3 Tons - 8 Tons or as client requirement |
Zinc coating | 30g/m² - 275g/m² |
Spangle | Big spangle,Regular spangle,Mini spangle,Zero spangle |
Surface treatment | Oil,Passivation, Chromated, Skin-passed, Anti-finger Print |
HS code | 72104900.00 |
Loading Port | Tianjin Port, Qingdao Port, Shanghai Port |
Payment Term | L/C or T/T(30% deposit) |
Delivery time | Within 15 workdays after deposit received |
Package | plastic film + water proof paper + steel plate + packing steel strip |
Application | Widely used in road, railway, civil construction, water conservancy construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc. |
Mechanical properties of galvanized steel Usage | Grade | Yield strength(Mpa) | Tensile strength(Mpa) |
Punching galvnaized steel | DC51D+Z | - | 270-500 |
DC52D+Z | 140-300 | 270-420 |
DC53D+Z | 140-260 | 270-380 |
Structure galvanized steel | S280GD+Z | ≥280 | ≥360 |
S350GD+Z | ≥350 | ≥420 |
S550GD+Z | ≥550 | ≥560 |
Product Display
Packaging And Transportation
We offer different modes of transport depending on the customer's destination: rail transport and ship transport,etc.The Shipping Mark shall consist of: Trade mark, Seller's name, Product name, Applicable standards,Specifications, Package No., Contract No., Heat No., Weight of zinc film, Color, Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.
FAQ
1.Why you choose us ?
Our company has been 12 years. We control the quality of the products very strictly, there are special people for the quality.
If you got lower price from other supplier ,we will pay back twice to customers about the higher price.
2.How long is your delivery time?
According to the quantity.Generally within 2-7 days if in stock.And 15-20 days if not in stock.
3.What is your payment terms?
A: By T/T 30% in advance ,and 70% before delivery.
B:100% L/C at sight.
C:By T/T 30% in advance,and 70% L/C at sight.
4.Do you provide samples ? Is it free?
Yes, we offer the sample for free but do not pay for the cost of freight.
5.What if the customer is not satisfied?
If there is a problem with the product,we take full responsibility.
If there is a problem in the transportation process,we will help you to solve it.