Galvanized Coils
Galvanized coils are made by dipping thin steel sheets into a bath of molten zinc, which adheres a layer of zinc to the surface. This is primarily produced using a continuous galvanizing process, whereby coiled steel sheets are continuously dipped into a bath of molten zinc to form galvanized steel sheets.
Product Introduction
Galvanized coil is a thin steel plate with a layer of zinc adhered to the surface by immersing the thin steel plate in a molten zinc bath. Galvanized coils can be divided into hot-rolled galvanized coils and cold-rolled hot-dip galvanized coils, which are mainly used in construction, home appliances, automobiles, containers, transportation and household industries. Especially steel structure construction, automobile manufacturing, steel silo manufacturing and other industries.
Galvanized Coil Coating:
(1) Normal spangle coating
During the normal solidification process of the zinc layer, the zinc grains grow freely and form a coating with an obvious spangle shape.
(2) Minimized spangle coating
During the solidification process of the zinc layer, the zinc grains are artificially restricted to form the smallest possible spangle coating.
(3) Zinc-free coating
The coating obtained by adjusting the chemical composition of the plating solution has no visible spangle morphology and a uniform surface.
(4) Zinc-iron alloy coating
Heat treatment of the steel strip after passing through the galvanizing bath to form an alloy layer of zinc and iron throughout the coating. A coating that can be painted directly without further treatment other than cleaning.
(5) Differential thickness coating
For both sides of galvanized steel sheet, coatings with different zinc layer weights are required.
(6) Smoothing
Skin-passing is a cold-rolling process performed on galvanized steel sheets with a small amount of deformation for one or more of the following purposes.
Improve the surface appearance of galvanized steel sheet or be suitable for decorative coating; make the finished product not see the phenomenon of slip line (Lydes line) or crease during processing to minimize temporarily, etc.
Large quantities of thin galvanized coils are used in automotive manufacturing, reefer containers, the construction industry, ventilation and heating installations, and furniture manufacturing. Galvanizing has become an important anti-corrosion method for steel, not only because zinc can form a dense protective layer on the surface of steel, but also because zinc has a cathodic protection effect. When the galvanized layer is damaged, it can still prevent the iron matrix through cathodic protection material corrosion.
Bse metal type | Grade | CHEMICAL COMPOSITION % | |||
C | Si | Mn | P | ||
Cold rolled steel coil | DC51D+Z (St01Z, St02Z, St03Z) , DC51D+ZF | ≤0.10 | - | ≤0.50 | ≤0.035 |
DC52D+Z (St04Z), DC52D+ZF | ≤0.08 | - | ≤0.45 | ≤0.030 | |
DC53D+Z (St05Z), DC53D+ZF | ≤0.08 | - | ≤0.40 | ≤0.030 | |
DC54D+Z (St06Z), DC54D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 | |
DC56D+Z (St07Z), DC56D+ZF | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 | |
Hot rolled steel coil | DD51D+Z (St01ZR, St02ZR) | ≤0.10 | - | ≤0.50 | ≤0.035 |
DD54D+Z (St06ZR) | ≤0.01 | ≤0.10 | ≤0.30 | ≤0.025 | |
Product Name | Hot Dipped Galvanized Steel Coil,Zinc Coated Steel |
Standard | EN10346, JIS G3302, ASTM A653,AS 1397,GB/T 2518 |
Steel Grade | Dx51D, Dx52D, Dx53D, DX54D,DX55D,DX56D,DX57D, S220GD, S250GD, S280GD, S320GD,S350GD, S390GD,S420GD,S450GD,S550GD, |
SGHC, SGH340, SGH400, SGH440, SGH490,SGH540, SGCC,SGCH,SGCD1, SGCD2, SGCD3, SGCD4,SGC340, SGC400 , SGC440, SGC490,SGC570; | |
CS-A,CS-B,CS-C,Grade 33,grade 37.grade 40,garde 50,grade60,grade70,grade80 | |
G1,G2,G3,G250,G300,G450,G550 | |
As Requirement | |
Type | Coil/Sheet/Plate/Strip |
Thickness | 0.12mm-6.0mm or 0.8mm/1.0mm/1.2mm/1.5mm/2.0mm |
Width | 600mm-1800mm or 914mm/1000mm/1200mm/1219mm/1220mm/1524mm |
Zinc Coating | Z30g/m2-Z600g/m2 |
Surface Structure | Normal spangle (N),, spangle-free(FS),Zero Spangel |
Oiled (O),Passivated(C),Passivated and oiled (CO) ,Sealed (S),Phosphate (P),Phoaphte and oiled (CO) | |
Coil Weight | 3 Tons -8 Tons |
Custom Made
Various stainless steel structures, carbon steel structures, galvanized steel structures, and aluminum profiles can be produced.
Color-coated coils of various patterns and colors, aluminum profiles, elbows, tees, stainless steel flanges, steel mesh, perforated steel sheets, cold-formed steel sheet piles, hot-rolled steel sheet piles, U/Z/S/L/AS/H types Steel sheet piles, steel strands, prestressed steel strands, 7/2/3/19/37 steel strands, galvanized steel strands, plastic-coated steel strands, carbon steel wires, steel wires, steel bars, grade I steel bars ( 300/420 grade), Ⅱ grade reinforcement (335/455 grade), Ⅲ grade reinforcement (400/540), Ⅳ grade reinforcement (500/630), compression reinforcement, tension reinforcement, erection reinforcement, distribution reinforcement, stirrup Steel bars, deformed steel bars, smooth steel bars, ribbed steel bars, cold-rolled twisted steel bars, universal steel beams (H-beams), welded H-beams, hot-rolled H-beams, T-beams, T-beams for railways, special-shaped welded T-beams, special-shaped heat Rolled equal-sided and equal-thickness T-shaped steel, special-shaped bolted T-shaped steel, H-shaped steel split T-shaped steel, Z-shaped steel, C-shaped steel, channel steel, I-beam, steel beam (Universal Beam), angle steel (angle iron), equilateral angle steel , Unequal angle steel, W-shaped steel, etc.
Rich manufacturing experience, complete production line, support for customizing various steel profiles! Meet customer application needs. Welcome to contact us for customization.
FAQ
Q: About the price of the product
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
7. Provide 24 hours online service
Q: What is the minimum order quantity?
A: 5T
Q: Do you provide after-sales service?
A: Yes, our company is committed to reaching long-term and friendly cooperation with customers. If you encounter any problems, please feel free to contact us.
Q: How can I get your quotation as soon as possible?
A: You can contact us through various contact channels on the website, such as: phone number, email, WhatsApp, WeChat, etc. We will reply within one day. When you contact us, you can provide us with the product specifications you need, such as size, quantity, material, drawings and other information. In this way, we will be able to provide you with the most accurate product quotation immediately.
