Galvanized Cold Rolled Sheet Coil for building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 36 m.t.
- Supply Capability:
- 30000 m.t./month
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Brief Introduction
1. Prepainted Galvanized Steel Coil is coated with organic layer, which provides higher anti-corrosion property and a longer lifespan than that of galvanized steel sheets.
2. The base metal for Prepainted Galvanized Steel Coil is HDGI Steel. The finish coats of Prepainted Galvanized Steel Coil can be classified into groups as follows: polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc.
3. The production process has evolved from one-coating-and-one-baking to double-coating-and-double-baking, and even three-coating-and-three-baking.
4. The color of the Prepainted Galvanized Steel Coil has a very wide selection, like orange, cream-colored, dark sky blue, sea blue, bright red, brick red, ivory white, porcelain blue, etc.
5. The Prepainted Galvanized Steel Coil can also be classified into groups by their surface textures, namely regular prepainted sheets, embossed sheets and printed sheets.
Specification
1. Thickness: 0.3-0.8mm
2. Width: 914-1250mm
3. Inner Diameter: 508mm
4. Weight of Steel Coil: 3-15MT
5. Available Dipped Layer: 50-150g/m2
6. Surface Texture: Normal Coated
7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.
8. Front Side Paint Thickness: 15-25μm (bottom paint+top paint)
9. Back Side Paint Thickness: 5-10μm
Mechanical Properties
1. Mechanical properties of base metals
Grade | Tensile Test | ||
Yield Strength MPa | Tensile Strength MPa | Elongation A80mm % ≥ | |
DX51D+Z | 140-350 | 270-500 | 22 |
DX52D+Z | 140-300 | 270-420 | 26 |
DX53D+Z | 140-260 | 270-380 | 30 |
2. Common performance of front coating
(1). Thickness: ≥20μm
(2). Pencil Hardness: 2H
(3). 60° specular glossiness of coating: >60
(4). 180°bend: ≤3T
(5). Impact: ≥9J
(6). Salt Fog Resistant: ≥500h
(7). Color difference: <3ΔE
- Q: What are the different methods of tension leveling for steel coils?
- There are several methods of tension leveling for steel coils, each with its own advantages and applications. 1. Roller leveling: This method involves passing the steel coil through a series of rollers under high tension. The rollers are strategically positioned to apply pressure on the coil, effectively stretching and elongating it. Roller leveling is commonly used for thinner gauge coils and is effective in removing coil set, crossbow, and edge wave defects. 2. Stretch leveling: In this method, the steel coil is subjected to a combination of tension and elongation. The coil is gripped by clamps at both ends and then stretched using hydraulic or mechanical devices. This process helps to remove residual stresses, flatten the coil, and improve shape control. Stretch leveling is particularly suitable for thicker gauge coils and can effectively eliminate wavy edges and center buckle. 3. Temper rolling: This method involves passing the steel coil through a series of temper rolls, which apply pressure on the surface of the coil. Temper rolling is primarily used to improve the surface finish of the steel and enhance its mechanical properties. It can also help to reduce coil set and improve flatness. 4. Skin pass rolling: In this method, the steel coil is passed through a series of rolls that apply a light pressure on the surface. Skin pass rolling is typically performed after the primary leveling process to further improve surface finish, enhance flatness, and reduce surface defects such as scratches or marks. 5. Stretcher leveling: This method involves clamping the steel coil at both ends and then applying tension to stretch it. The stretched coil is then held in this position for a period of time to allow for stress relief and shape correction. Stretcher leveling is commonly used for thicker gauge coils and can effectively remove coil set, crossbow, and center buckle. Each of these tension leveling methods offers unique advantages and is suitable for different types of steel coils and specific requirements. The choice of method depends on factors such as coil thickness, desired flatness, surface finish, and the specific defects that need to be corrected.
- Q: Can steel coils be stored vertically?
- Yes, steel coils can be stored vertically.
- Q: Is steel with a black coloring as strong as regular steel. if you are asking why i have two wordsBlack Katana.I know a katana is not made with normal steel, it is made of two types with varying grades of carbon to give it speacial properties, i just want to know if the black will make a difference.
- There are many types of steel some very rigid, while you can have steel that is very flexible. The type of katana: steel is for Samurai swords
- Q: What are the common sizes of steel coils used in the industry?
- The common sizes of steel coils used in the industry vary, but some of the standard sizes include 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, and 2.5mm. However, it's important to note that different industries may have specific requirements and may use custom sizes depending on their applications.
- Q: which pokemon has the most steel pokemon???
- Robopon ;) Transformers? really... fail joke, Robopon is essentially pokemon with robots ;) But on-topic, i believe Platinum would be your best choice.. from memory, it had no end of steel and steel-hybrids.
- Q: What are the common methods of storing steel coils in warehouses?
- The common methods of storing steel coils in warehouses include stacking them on pallets or racks, using coil cradles or coil saddles to hold them in place, or utilizing specialized coil storage systems such as coil racks or coil cranes.
- Q: How are steel coils processed for cutting to length or blanking?
- Steel coils are typically processed for cutting to length or blanking through a series of steps. First, the coils are unwound using a machine called an uncoiler, which feeds the steel into the cutting process. Then, the steel passes through a leveler to ensure a flat surface. Next, it enters a shear or blanking process, where the steel is cut into desired lengths or shapes. Finally, the cut pieces are stacked or packaged for further use or distribution.
- Q: What are the common coil packaging materials?
- The common coil packaging materials include stretch film, shrink wrap, steel strapping, and wooden or cardboard cradles.
- Q: Can steel coils be bent or formed into different shapes?
- Yes, steel coils can be bent or formed into different shapes through various processes such as rolling, bending, or stamping.
- Q: What are the common surface treatments for galvanized steel coils?
- Some common surface treatments for galvanized steel coils include passivation, chromate conversion coating, and painting. Passivation helps to enhance the corrosion resistance of the galvanized coating, while chromate conversion coating provides additional protection and improves adhesion for subsequent paint coatings. Painting can be done to enhance aesthetics or to provide additional corrosion protection, depending on the specific requirements of the application.
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Galvanized Cold Rolled Sheet Coil for building
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 36 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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