Prepainted Galvanised Corrugated Sheet
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Product Description:
General Information Of Prepainted Galvanized Steel
With GI as base metal, after pretreatment (degrease and chemical treatment) and liquid dope with several layers of color, then after firing and cooling, finally the plate steel is called pre-painted galvanized steel. Pre-painted galvanized steel is good capable of decoration, molding, corrosion resistance. It generally displays superior workability, durability and weather resistance.
Thickness 0.23-1.2mm (BMT) |
Zinc Coating 80-275g/m2 |
Color According to RAL color fan |
Internal Diameter 508mm or 610mm |
Coil Weight 4-8MT |
Quality Commercial and structural quality |
Paint Polyester paint for topside, epoxy for reverse |
Standard JIS G 3312, ASTM A755M, EN 10169 |
Base Steel Grade SGCC,SGCD,DX51D+Z,DX52D+Z;S200GD,S220GD, S280GD,S350GD,CS,FS,SS |
Chemical Composition Of Prepainted Galvanized Steel
C | Si | Mn | P |
0.04-0.06% | 0.01-0.03% | 0.18-0.22% | 0.014-0.016% |
Technical Data Of Prepainted Galvanized Steel
Yield Strength | (Mpa) 280-320 |
Tensile Strength | (Mpa) 340-390 |
Elongation | 20%-30% |
Reverse Impact | 9J |
T-bending | ≥2T |
Pencil Hardness | ≥2H |
Duration Of Salt Spray Test | 500 H |
Bending At 180 Degree | No crack, purling and fraction |
Application Of Prepainted Galvanized Steel
Outdoor：
roof, roof structure, surface sheet of balcony, frame of window, door, door of garage, roller shutter door, booth, Persian blinds, cabana, etc.
In door:
door, isolater, frame of door, light steel structure of house, home electronic appliances, etc.
Packaging & Delivery Of Prepainted Galvanized Steel
Anti-damp paper inside full wrapped with plastic film, iron sheet outside on wooden pallet in 20 feet container with 25mt.
- Q:How do steel sheets compare to fiberglass sheets?
- Different applications require distinct characteristics from steel sheets and fiberglass sheets. Steel sheets are renowned for their strength and durability, enabling them to withstand heavy loads and resist impact and abrasion. Additionally, steel sheets provide exceptional fire resistance, making them an ideal choice for applications prioritizing fire safety. Furthermore, steel sheets require relatively low maintenance and can endure harsh weather conditions, making them a popular option for outdoor structures like roofing and siding. On the contrary, fiberglass sheets possess the advantage of being lightweight and highly resistant to corrosion. Typically composed of woven glass fibers embedded in a resin matrix, fiberglass sheets offer a high strength-to-weight ratio. Moreover, they are non-conductive, making them suitable for applications requiring electrical insulation. Notably, fiberglass sheets are also transparent to electromagnetic waves, particularly radio waves, making them widely used in industries such as telecommunications. While steel sheets excel in providing superior strength for heavy-duty applications, fiberglass sheets shine in areas where considerations of weight, corrosion resistance, and electrical insulation are crucial. Ultimately, the choice between steel sheets and fiberglass sheets hinges on the specific requirements of the application and the desired characteristics necessary to fulfill those requirements.
- Q:Are steel sheets resistant to humidity?
- Yes, steel sheets are generally resistant to humidity. Due to their corrosion-resistant properties, steel sheets are able to withstand exposure to high levels of moisture without significant degradation or damage. However, it is important to note that prolonged exposure to extreme humidity or harsh environmental conditions can still potentially lead to some degree of corrosion.
- Q:What is the difference between a galvanized and painted steel sheet?
- Galvanized steel sheets have a zinc coating that shields them from corrosion, while painted steel sheets have a layer of paint for both visual appeal and added protection against corrosion. Galvanization involves immersing the steel sheet in molten zinc, which forms a bond with the steel. This zinc coating acts as a sacrificial anode, corroding instead of the steel when exposed to elements like moisture and oxygen. As a result, galvanized steel sheets have exceptional corrosion resistance and can withstand outdoor environments for a long time. On the other hand, painted steel sheets have a layer of paint that acts as a barrier between the steel surface and the surroundings. This prevents direct contact between the steel and corrosive substances, like moisture. Consequently, the lifespan of the steel sheet is extended, and its appearance is preserved. In terms of appearance, galvanized steel sheets have a silver-gray color due to the zinc coating, while painted steel sheets can be found in various colors depending on the paint used. Galvanized steel sheets also have a textured surface because of the zinc coating, while painted steel sheets can have a smoother or textured finish based on the application technique. Ultimately, the primary difference between galvanized and painted steel sheets lies in their corrosion protection methods. Galvanized steel relies on the sacrificial corrosion of zinc, while painted steel depends on the paint's barrier effect. The choice between the two depends on factors such as the specific application, aesthetic requirements, and the desired level of corrosion resistance.
- Q:What are the different types of steel sheet coatings?
- In the market, there exists a variety of steel sheet coatings, each possessing its own unique properties and advantages. Some of the most commonly utilized types are as follows: 1. Galvanized Coating: This coating is extensively employed for steel sheets due to its exceptional corrosion resistance and ability to prevent rust. It involves the application of a zinc layer onto the steel surface. Galvanized coatings find widespread use in outdoor applications such as roofing, fencing, and automotive parts. 2. Galvannealed Coating: Similar to galvanized coating, galvannealed coating also entails the application of a zinc layer onto the steel surface. However, in this process, the coated steel undergoes a high-temperature annealing process, resulting in the formation of an iron-zinc alloy coating. This type of coating offers improved paintability and weldability, making it ideal for applications that require subsequent painting or welding. 3. Aluminized Coating: Aluminized coatings involve the application of an aluminum layer onto the steel surface. This offers exceptional heat resistance and corrosion resistance, making it suitable for applications involving high temperatures, such as exhaust systems and ovens. Aluminized coatings also possess good reflectivity properties, which make them valuable for reflective insulation applications. 4. Organic Coatings: Several organic coatings, including epoxy, polyester, and polyurethane coatings, are available for steel sheets. These coatings are typically applied as paints or powder coatings and provide a protective layer that enhances the durability and appearance of the steel. Organic coatings can be tailored to offer specific properties, such as UV resistance, chemical resistance, or decorative finishes. 5. Tin Coating: Tin coatings are commonly utilized in the food packaging industry. They create a barrier between the steel sheet and the food product, preventing any interactions that could compromise the quality or safety of the food. 6. Other Specialty Coatings: Several other specialty coatings are available for specific applications. These include zinc-nickel coatings, which offer enhanced corrosion resistance, and ceramic coatings, which provide high-temperature resistance and excellent electrical insulation properties. In summary, the choice of steel sheet coating depends on the specific requirements of the application, such as corrosion resistance, heat resistance, or aesthetic appeal. It is crucial to carefully evaluate the properties of each coating type to ensure optimal performance and longevity of the steel sheet in its intended use.
- Q:What is the flatness tolerance of steel sheets?
- The flatness tolerance of steel sheets typically varies depending on the specific grade and thickness of the sheet. However, in general, the industry standard flatness tolerance for steel sheets is usually around 0.5% of the sheet's length.
- Q:Can steel sheets be used for reinforcing concrete structures?
- Yes, steel sheets can be used for reinforcing concrete structures. Steel sheets, also known as steel reinforcement bars or rebars, are commonly used in construction to provide tensile strength and enhance the durability of concrete structures. These sheets are placed within the concrete to bear the tensile forces that concrete alone cannot withstand. They help prevent cracking and improve the overall strength and integrity of the structure.
- Q:Are steel sheets resistant to staining?
- Yes, steel sheets are highly resistant to staining due to their non-porous surface and protective coating, making them a reliable option for applications where stains are a concern.
- Q:What is the typical weight of steel sheets?
- The typical weight of steel sheets varies depending on their size, thickness, and type of steel being used. Generally, steel sheets can range in weight from a few pounds to several tons. For example, a standard 4x8 foot steel sheet with a thickness of 1/4 inch can weigh around 110 pounds, while a larger 10x10 foot sheet with a thickness of 1 inch can weigh over 1,000 pounds. It is important to note that these are just general estimates, and the weight can vary based on specific factors such as the alloy composition or any additional coatings applied to the steel sheets.
- Q:Can steel sheets be used in corrosive environments like saltwater?
- Yes, steel sheets can be used in corrosive environments like saltwater. However, the type of steel and the level of corrosion resistance it offers will determine its suitability for such conditions. Stainless steel, for example, is highly resistant to corrosion and is often used in marine and saltwater environments. It contains chromium, which forms a protective layer on the surface of the steel, preventing it from reacting with the saltwater. Other types of steel, such as carbon steel, may also be used in saltwater environments, but they require additional protective coatings or treatments to prevent corrosion. Regular maintenance and proper care are essential to ensure the longevity of steel sheets in corrosive environments like saltwater.
- Q:Can steel sheets be used for cladding or façade applications?
- Yes, steel sheets can be used for cladding or façade applications. Steel is a versatile and durable material commonly used in construction for its strength and aesthetic appeal. Steel sheets can be easily fabricated into various shapes and sizes, making them suitable for cladding or covering building exteriors. Additionally, steel sheets can be coated or treated to enhance their resistance to corrosion and weathering, further making them a suitable choice for cladding or façade applications.
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Prepainted Galvanised Corrugated Sheet
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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