Prepainted GI steel coil / PPGI / PPGL color coated galvanized steel sheet in coil
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1 m.t./month
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Quick Details
| Standard: | AISI,ASTM,BS,DIN,GB,JIS | Grade: | SGLCC. SQZL | Thickness: | Normally 0.2mm-2.0mm, even more thicker |
| Place of Origin: | Tianjin China (Mainland) | Brand Name: | CNBM | Model Number: | 0.2mm-2.0mm * 914mm-1250mm |
| Type: | Steel Coil | Technique: | Cold Rolled | Surface Treatment: | Coated |
| Application: | Boiler Plate | Special Use: | Silicon Steel | Width: | Normally 914mm-1250mm; even much narrower, but above 600mm |
| Length: | As Required | PVC Covered or not:: | As Required | Anti Finger-Print or not:: | As Required |
| Package:: | Standard Exportation Package, Anti Corrosion | Skin Passed or not:: | As Required | Coil Weight: | Normally 5 M/T, but aslo as required |
| Base Metal: | SGCC,DX51D+Z, OR Others | Color Standard: | As Required from RAL Series | Coil Inner Diameter: | 508mm/610mm |
| Coating Thickness:: | Top:10-25um, back:4-8um | Zinc Weight:: | 30/150/160g/m2 |
Packaging & Delivery
| Packaging Detail: | Standard export packing, 4 eye bands and 4 circumferential bands in steel, galvanized metal fluted rings on inner and outer edges, galvanized metal and waterproof paper wall protection disk, galvanized metal and waterproof paper around circumference and bore protection. |
| Delivery Detail: | 7-30 Days |
Specifications
1.pre-painted galvalume steel coils
2.Grade:SGLCC SQZL
3.AZ Weight:30/150/160g/m2
4.Width:914-1250mm
5.RAL K7 Color
1.Product Introduction information:
| PRODUCT | Color Coated Galvalume Steel Coil |
| STANDARD | GB/T-12754: 2006, JIS330, ASTM A653, JIS G330, GB/T2518, ASTM A792, JIS G3321, JIS G3317 |
| BASE METAL | Hot dipped Galvanized steel sheet/coil, Hot dipped Galvalume steel sheet/coil |
| EQUIPMENT | Double coating double baking; three coating three painting |
| SUPPLY CAPACITY | 10000 Tons per Year, 1000 Tons per Month |
| SIZE | Thickness 0.2mm-2.0 mm, width 914mm—1250mm; if special Specs, please inform us about that |
| ZINC COATING | 30g/m2-275g/m2 |
| PAINT THICKNESS | Top: 10-25 microns; Back: 4-8 microns |
| COIL WGT | normally 5 Tons per Coil, aslo as required by customer |
| COIL ID | 508mm/610mm |
| SURFACE PAINT | EP, PE, HDP, SMP, PVDF |
- Q: How are steel coils inspected for color consistency using colorimetry?
- Steel coils can be inspected for color consistency using colorimetry, which is a method of quantifying and measuring colors. Colorimetry involves the use of specialized instruments, such as spectrophotometers or colorimeters, to measure the color of an object in terms of its hue, saturation, and brightness. To inspect steel coils for color consistency, a colorimeter is typically used. This device emits light onto the surface of the steel coil and measures the amount of light reflected back. The reflected light is then analyzed and compared to a known standard color to determine if there are any deviations. The colorimeter measures color by breaking down the reflected light into different wavelengths and quantifying the intensity of each wavelength. This data is then converted into numerical values that represent the color of the steel coil. These numerical values can be compared to a predefined color standard to determine if the color of the coil falls within an acceptable range. To ensure accurate and consistent color measurement, colorimetry relies on standardized color spaces, such as CIE L*a*b* or CIE RGB, which define a specific range of colors. By using these standardized color spaces, colorimeters can provide objective and reliable measurements of color consistency. In the case of steel coils, color consistency is particularly important for industries where the appearance of the final product is crucial, such as automotive or appliance manufacturing. By inspecting the color of steel coils using colorimetry, manufacturers can ensure that the final products have a consistent and visually appealing appearance. Overall, colorimetry is an effective method for inspecting steel coils for color consistency. By using specialized instruments and standardized color spaces, manufacturers can accurately measure and compare the color of steel coils to predefined standards, ensuring that the final products meet the desired color specifications.
- Q: What are the main factors that affect the paint adhesion on steel coils?
- The main factors that affect paint adhesion on steel coils are surface cleanliness, surface roughness, presence of contaminants, proper surface preparation, and the type of paint or coating being used.
- Q: what is the chemical process that makes steel harder when it is heated and cooled rapidly?what does the heating of it do to the atoms?what does the cooling of it do to the atoms?what makes tempered steel so strong compared to untempered steel?
- You can't temper all steels. Generally the material must be a high-carbon or tool steel. Different alloys temper differently, and tempering is usually done to get a specific set of characteristics, so you must know what you are working with and use the right methods and temperature. If you do it wrong, the material may be hard but too brittle for the purpose or have other issues. It can be simple, such as heating to a dull red, carbonizing the surface (use an acetylene rich flame until it blackens the surface) and oil quenching. Do that to a piece of tool steel (like a screwdriver) and it will case (surface) harden it to the point you can't scratch it with a file. Tempering changes the way the molecular structure in the metal is linked and oriented.
- Q: Okay, I have looked all ovcer the net and it says diamonds are stronger, but why? I mean, why is diamonds used for the top equiptment rather than steel?
- diamonds are not so much 'stronger' but they are harder than steel. they are harder because of the symmetry of their crystalline structure. Steel can be made harder by helping it's crystalline structure become more symmetrical, but it's not going to have the perfect structure that diamonds do....it's just impossible due to the chemistry of steel. Many industrial drill bits or abrasives use tiny diamonds for the cutting edge, because they are harder and therefore can withstand more abuse before eroding away. coring bedrock is one common application. However, diamonds do have their weaknesses, and by the right person they can be cut along planes with relative ease. diamonds are not malleable or ductile, so making equipment out of them is just not in the cards, not to mention how much money it would cost to do so....and you can't weld diamonds together to make a long piece of diamond, what you get out of the earth is what you get....or they can make diamonds, but still, we can't create diamonds that are multiple feet long!!
- Q: What are the different methods of joining steel coils?
- There are several methods used for joining steel coils, including welding, brazing, soldering, and mechanical fastening. Welding is the most common method, which involves melting the edges of the coils and fusing them together. Brazing and soldering involve using a filler metal with a lower melting point to join the coils. Mechanical fastening methods include using bolts, screws, or clips to connect the coils together. Each method has its own advantages and is chosen based on the specific requirements and constraints of the application.
- Q: What are the different surface treatments for steel coils?
- There are several different surface treatments available for steel coils, depending on the desired outcome and application. Some of the most common surface treatments for steel coils include: 1. Hot-dip galvanizing: This process involves immersing the steel coils in a bath of molten zinc, which forms a protective layer on the surface of the steel. Hot-dip galvanizing provides excellent corrosion resistance and is often used for outdoor applications. 2. Electro-galvanizing: Similar to hot-dip galvanizing, but instead of immersing the steel coils in molten zinc, a thin layer of zinc is electroplated onto the surface of the steel. Electro-galvanizing provides good corrosion resistance and is commonly used for indoor applications. 3. Powder coating: This process involves applying a dry powder to the surface of the steel coils, which is then heated and cured to form a hard, durable coating. Powder coating provides excellent corrosion resistance and is available in a wide range of colors and finishes. 4. Paint coating: Steel coils can also be coated with a liquid paint, which provides both corrosion resistance and aesthetic appeal. Paint coatings can be applied in various thicknesses and finishes, depending on the desired look and level of protection required. 5. Phosphating: Phosphating is a chemical treatment that involves immersing the steel coils in a phosphate solution. This process creates a thin, adherent layer of phosphate on the surface of the steel, which enhances paint adhesion and improves corrosion resistance. 6. Chromate conversion coating: Also known as chromating or passivation, this process involves immersing the steel coils in a solution containing chromium salts. Chromate conversion coatings provide excellent corrosion resistance and also act as a primer for subsequent paint or powder coating. 7. Zinc-nickel plating: This surface treatment involves electroplating a layer of zinc-nickel alloy onto the steel coils. Zinc-nickel plating provides superior corrosion resistance compared to pure zinc plating and is often used in demanding environments. These are just a few of the many surface treatments available for steel coils. The choice of treatment depends on factors such as the application, desired level of corrosion resistance, aesthetic requirements, and budget. It is important to carefully consider the specific needs of the project and consult with experts to determine the most suitable surface treatment for steel coils.
- Q: What are the environmental impacts of steel coil production?
- The environmental impacts of steel coil production include the extraction of raw materials, such as iron ore and coal, which can lead to deforestation, habitat destruction, and soil erosion. The steel manufacturing process also releases significant amounts of greenhouse gases, such as carbon dioxide, contributing to climate change. Additionally, the production of steel coils requires large amounts of water and energy, leading to water scarcity and increased carbon emissions.
- Q: What are the common coil surface treatments available for steel coils?
- There are several common coil surface treatments available for steel coils, each serving different purposes and offering various benefits. These treatments aim to enhance the durability, corrosion resistance, and appearance of the steel coils. 1. Galvanized Coating: Galvanization is a popular treatment in which a layer of zinc is applied to the steel coil's surface. This coating provides excellent corrosion protection, preventing rust and extending the lifespan of the coil. It is commonly used in outdoor applications or environments with high humidity levels. 2. Phosphating: Phosphating is a chemical treatment that forms a thin layer of phosphate coating on the steel coil's surface. This treatment enhances the adhesion of subsequent coatings and improves the coil's paintability. It also offers some corrosion resistance and can be used as a pre-treatment before painting or powder coating. 3. Chromate Conversion Coating: Chromate conversion coating, also known as chem film or Alodine, involves applying a thin layer of chromate to the steel coil's surface. This treatment offers corrosion protection and acts as a primer for subsequent coatings, improving their adhesion. It is often used in aerospace and electrical applications. 4. Powder Coating: Powder coating is a dry finishing process in which a fine powder is applied to the steel coil's surface electrostatically and then cured under heat. This treatment provides a durable and attractive finish, offering excellent resistance to chipping, scratching, and fading. Powder coating is available in a wide range of colors and textures, making it a versatile option. 5. Organic Coatings: Organic coatings, such as acrylic, polyester, or polyurethane, are applied to the steel coil's surface as liquid paints. These coatings provide aesthetic appeal, protection against corrosion, and resistance to weathering and UV radiation. Organic coatings are often used in architectural and automotive applications. 6. Anodizing: Anodizing is a treatment primarily used for aluminum coils but can also be applied to steel coils. It involves creating an oxide layer on the surface of the coil through an electrochemical process. This treatment enhances the coil's corrosion resistance and provides an attractive finish. Anodizing is commonly used in architectural and decorative applications. It's important to note that the choice of coil surface treatment depends on the specific requirements of the application, including the desired performance, aesthetics, and environmental factors. Consulting with a professional in the steel industry can help determine the most suitable treatment for a particular project.
- Q: What are the factors that affect the quality of steel coils?
- There are several factors that can affect the quality of steel coils. Some of the key factors include the selection and quality of raw materials used, the manufacturing processes employed, the level of expertise and skill of the workforce, the adherence to strict quality control measures, and the overall condition and maintenance of the equipment used in the production process. Additionally, external factors such as environmental conditions and transportation methods can also impact the quality of steel coils.
- Q: How are steel coils protected from mechanical damage?
- Steel coils are protected from mechanical damage through various methods such as using protective packaging materials like wooden crates or metal bands, applying plastic or paper interleaving, and utilizing specialized handling equipment during transportation and storage.
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Prepainted GI steel coil / PPGI / PPGL color coated galvanized steel sheet in coil
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 1 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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