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Payment Type:L/C,T/T,D/P
Incoterm:FOB,CFR,EXW,CIF
Transportation:Ocean,Land,Express
Port:Qingdao,Shanghai,Tianjin
Model No.: Dx51D Z275
Brand: GZ STEEL
Standard: Aisi, Astm, Din
Place Of Origin: China
Species: Steel Coil
Production Process: Cold Rolled
Surface Treatment: Galvanized
Application: Container Plate, Ship Plate
Special Steel: Wear Resistant Steel
Tolerance: ±1%, ±3%
Category: Cold Rolled Steel Sheet, Hot-Galvanized Steel Sheet, Electro-Galvanized Steel Sheet, Galvalume Steel Sheet
Processing Service: Bending, Welding, Cutting, Punching, Decoiling
Standard: ASTM, JIS, EN, BS, DIN
Material Grade: SGCC,SGCH,G350,G450,G550,DX51D,DX52D,DX53D
Thickness: 0.14mm-4.0mm
Width: 18mm-1500mm or according to customer's special request
Zinc Coating: 30g-275g
Certificate: ISO, CE
Packaging: Export Standard Package or as Request
Productivity: 10000 Tons per Month
Transportation: Ocean,Land,Express
Place of Origin: Shandong, China
Supply Ability: 10000 Tons per Month
Certificate: ISO 9001
Port: Qingdao,Shanghai,Tianjin
Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR,EXW,CIF
Product Introduction
Galvanized Steel Coil is a material produced by continuous hot-dip galvanizing process with hot-rolled steel strip or cold-rolled steel strip as the substrate. Hot dip Galvanized Coil supplied in coil form after coiling. Therefore, galvanized Steel Coil (plate) can be divided into hot-rolled galvanized sheet coil and cold-rolled hot-dip galvanized sheet coil. They are mainly used in the fields of construction, household appliances, automobiles, containers, transportation and household industry. Especially in steel structure construction, automobile manufacturing, steel warehouse manufacturing and other industries. Their main characteristics are: strong corrosion resistance, good surface quality, benefit from deep processing, economy and practicality, etc.
Galvanized Steel Coil gets coated in layers of zinc because rust won't attack this protective metal. The most external layer is all zinc, but successive layers are a mixture of zinc and iron, with an interior of pure steel. These multiple layers are responsible for the amazing property of the metal to withstand corrosion-inducing circumstances. Zinc also protects the steel by acting as a "sacrificial layer." If rust does take hold on the surface of Galvanized steel coil, the zinc will get corroded first. This allows the zinc that is spread over the breach or scratch to prevent rust from reaching the steel. For countless outdoor, marine, or industrial applications, Galvanized steel coil is an essential fabrication component.
The requirements of chemical composition of galvanized coil are different in different countries. The national standard is to detect the content of carbon, manganese, phosphorus, sulfur and silicon.
Product Specification
| Product | Galvanized Steel Coil |
| 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, 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 - 600g/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. |
Chemical composition
| STEEL GRADE | CHEMICAL COMPOSITION % | MECHANIC PROPERTY | C.B OF | COATING | ||||||
| C | Si | Mn | S | P | T.S | Y.S | E.L | COATING | ||
| x103 | x103 | x102 | x103 | x103 | Mpa | Mpa | % | d=0 180° | G/M² | |
| JIS G3302 SGCC | 12 | 30 | 41 | 31 | 21 | 480 | 300 | 13 | OK | Z60-150 |
| JIS G3302 SGCH | 12 | 10 | 21 | 18 | 8 | 680 | 650 | 20 | OK | Z60-150 |
| ASTM A653 CS.B | 29 | 30 | 60 | 35 | 30 | 386 | 250-380 | 20 | OK | Z60-275 |
| DX51D+Z | 20 | 21 | 18 | 1.8 | 11 | 355 | 245 | 38 | OK | Z60-275 |
| G550 | 12 | 6 | 73 | 5 | 17 | 715 | 654 | 8 | OK | Z60-275 |
Mechanical properties of galvanized steel
| Usage | Grade | Yield strength(Mpa) | Tensile strength(Mpa) | Elongation rate % |
| Punching galvanized steel | DC51D+Z | - | 270-500 | ≥20 |
| DC52D+Z | 140-300 | 270-420 | ≥22 | |
| DC53D+Z | 140-260 | 270-380 | ≥26 | |
| DC54D+Z | 140-220 | 270-350 | ≥30 | |
| Structure galvanized steel | S220GD+Z | ≥220 | ≥300 | ≥18 |
| S250GD+Z | ≥250 | ≥330 | ≥17 | |
| S280GD+Z | ≥280 | ≥360 | ≥16 | |
| S320GD+Z | ≥320 | ≥390 | ≥15 | |
| S350GD+Z | ≥350 | ≥420 | ≥14 | |
| S400GD+Z | ≥400 | ≥470 | - | |
| S500GD+Z | ≥500 | ≥530 | - | |
| S550GD+Z | ≥550 | ≥560 | - |
Production Process
Product Display
We can produce different sizes, thicknesses, widths and materials according to your requirements
Diagram of Steel Surface Coating And Layers
Advantages
1.Available for customized specification on customers’ request.
2.Perfect Corrosion Resistance. The service life of galvalume is 3-6times as long as that of galvanized surface.
3.Perfect Processing Performance. Fully meet the requirement of roll processing, stamping, bending, ect.
4.Perfect Light Refelectivity. The ability of reflecting light and heat is twice that of galvanizing.
5.Perfect Heat Resistance. Galvalume products can be used at 315 degree Celsius for a long time without discoloration.
6.Excellent adhesion between the paint. Easy to paint and can be painted without pretreatment and weathering.
Galvanized Steel Coil Types
According to the processing method, we divide galvanized steel into the following categories:
1. Hot-dip Galvanized Steel Coil
As the name implies, hot-dip galvanizing is immersing the cleaned iron sheet into the molten zinc bath at about 500 degrees to form a zinc layer. It is the most commonly used method. It has some advantageous features:
1) The entire steel surface is uniformly covered with a zinc layer, even the corners, hollows, etc. so that the steel sheet is fully protected.
2) The cost of hot-dip galvanizing is cheap.
2. Electro-galvanized Steel Coil
Electro-galvanizing is a process of applying a layer of zinc to steel through electroplating, with a saline anode and steel conductor. It is able to enhance the corrosion and heat resistance of steel. Also, it makes steel sheets more good-looking.
Surface Structure
Quality Inspection
(1) During and after production, 4 QC personnel with more than 5 years of experience randomly inspect the products.
(2) National accredited laboratory with CNAS certificate.
(3) Accept inspection from a third party designated/paid by the buyer, such as SGS, BV.
(4) Recognized by customers in Malaysia, Indonesia, Singapore, the Philippines, Australia, Peru and the United Kingdom. We have ISO9001/18001, CE certificates.
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., Production date, Weighing method, Net weight, Gross Weight, Consignee and Protection symbols, etc.
More questions, please send the email to us!
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