0.4mm-0.5mm Pre-Painted Galvanized Steel Roofing Sheet PPGI
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Product Description
0.4mm/0.45mm/0.47mm/0.5mm Pre-Painted galvanized Steel Roofing Sheet PPGI
Painting: Polyester(PE) PVDF
Standard: ASTM, JIS,AISI, GB
Grade: SGCC.SPCC.DC51D,DC52D,DC53D
thickness: 0.2mm---1.0mm
Width: 914mm,1000mm, 1200mm, 1250mm, 1500mm or as your request
Zinc coating: 40-250g/m2
Color: Ral code or as the client request
Packing: wooden with the waterproof paper
Delivery: 4 weeks
MOQ: 5tons or negotiable
Applications
1) Refrigerator, washer, switch cabinet, instrument cabinet, air conditioning, micro-wave oven, bread maker
2) Exterior applications such as: Wall cladding, facades, roofs and canopies, tunnels, column covers or renovations
3) Interior applications such as: Wall cladding, ceilings, bathrooms, kitchens and balconies
Brand Name | CNBM |
Product Name | PPGI / PPGL (PCM) |
Thickness of Base Metal | 0.2~0.8mm |
Painting material | Polyester(PE) PVDF epoxy |
Painting Thickness | 7~30μm |
Surface Protection | PE protective film |
Color | Ral code or as the client request |
Surface Treatment | Degreasing and chemical treatment |
Gloss | 5-105% |
Coating Hardness (pencil resistance) | ≥H |
Flexibility (T-bend) | ≤2T |
MEK resistance | More than 100 |
Supplying Status | Sheet: Width≤2000mm,Length≤5000mm |
Coil: Width≤2000mm,N.W≤5T,Inner Diameter: φ408mm φ505 φ508 | |
Application | Home appliance: Refrigerator shutter & side panels, Washer, Freezers, Air conditions, Rice Cooker, Microwave Ovens, Water Heaters, Sterilization Cabinets, Range Hoods Computer Panels , DVD/DVB panels, TV back panel etc. |
FAQ
1.Do you have QC teams?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.
2.Are the products tested before shipping?
Yes, all of our PPGI and GI was qualified before shipping. We test every batch every day.
3. Is the sample available?
Yes, samples can be sent for test if you need.
4. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness and width ,it is about 20-40days. But don't worry ,we also try our best for the delivery time ,because time longer and our cost is higher.
- Q: What are the different coil leveling methods used for steel coils?
- There are several coil leveling methods used for steel coils, each with its own benefits and limitations. Here are some of the most common methods: 1. Roller Leveling: In this method, steel coils are passed through a series of rollers that apply pressure to flatten and level the coils. Roller leveling is effective in reducing coil crown or center buckle, and it can also help eliminate coil memory. However, it may not be suitable for coils with severe shape defects or variations. 2. Stretch Leveling: This method involves stretching the steel coils to remove any shape defects. The coils are passed through a series of gripper heads that hold the edges of the coil while it is stretched. Stretch leveling is particularly effective in correcting crossbow and edge wave defects. However, it may cause some elongation and yield loss in the material. 3. Temper Pass: This method involves passing the steel coils through a series of temper mill stands, where they are subjected to tension and compression forces. Temper pass leveling helps improve flatness and remove coil memory. It is commonly used for thinner gauge steel coils but may not be suitable for thicker coils. 4. Corrective Leveling: This method is used for coils with severe shape defects. It involves selectively removing material from specific areas of the coil to correct the shape. Corrective leveling is a labor-intensive process that requires skilled operators, but it can effectively eliminate shape defects and improve flatness. 5. Tension Leveling: In this method, the steel coils are subjected to tension forces while being passed through a series of pinch rolls. Tension leveling helps remove coil memory and improve flatness. It is particularly effective for coils with edge wave defects. However, it may cause some elongation and yield loss in the material. These are just a few of the coil leveling methods used for steel coils. The choice of method depends on the specific requirements of the steel coils and the desired flatness results. It is important to consider factors such as material thickness, shape defects, and production capacity when selecting the appropriate leveling method.
- Q: How are steel coils used in the manufacturing of agricultural implements?
- Steel coils are used in the manufacturing of agricultural implements as they are shaped and formed into various components such as blades, tines, and frames. These components are then assembled to create durable and reliable equipment that is used for tilling, planting, harvesting, and other farming activities. The strength and versatility of steel coils make them ideal for creating robust and long-lasting agricultural implements.
- Q: Are steel coils used in the aerospace industry?
- Yes, steel coils are used in the aerospace industry for various applications such as manufacturing aircraft components, structural parts, and engine components.
- Q: What are the limitations of using steel coils in certain applications?
- Steel coils have a few limitations that may restrict their use in certain applications. Firstly, steel coils can be heavy and bulky, making them less suitable for applications where weight reduction is crucial. For instance, in industries such as aerospace or automotive, where lightweight materials are preferred to enhance fuel efficiency and improve performance, steel coils may not be the most suitable choice. Secondly, steel coils are vulnerable to corrosion, especially in environments with high moisture or exposure to chemicals. This limitation can restrict their use in applications where resistance to corrosion is crucial, such as marine or coastal structures. Additional protective coatings or regular maintenance may be required to mitigate this limitation, adding to the overall cost and maintenance efforts. Moreover, steel coils may not possess the necessary flexibility or malleability required for certain applications. In industries such as construction or manufacturing, where materials need to be easily shaped or bent into specific forms, steel coils might not offer the desired level of flexibility. This limitation can lead to difficulties in achieving desired designs or may require additional processing steps to mold the steel coils into the desired shape. Lastly, steel coils can have limitations in terms of their temperature resistance. In high-temperature applications, such as in furnaces or power generation, steel coils may experience thermal expansion or deformation, which can compromise their structural integrity. In such cases, alternative materials with higher temperature resistance, such as refractory metals or ceramics, may be more suitable. Overall, while steel coils are widely used and versatile materials, their limitations in terms of weight, corrosion resistance, flexibility, and temperature resistance can restrict their use in certain applications. It is crucial to consider these limitations and assess the specific requirements of the application when selecting materials for optimal performance and durability.
- Q: What are the common certifications required for steel coils?
- The common certifications required for steel coils depend on the specific industry and application of the coils. However, there are several widely recognized certifications that are commonly required. 1. ISO 9001: This certification ensures that the manufacturer has implemented a quality management system that meets international standards. It verifies that the manufacturer has the necessary processes and controls in place to consistently produce high-quality steel coils. 2. ISO 14001: This certification focuses on environmental management systems. It ensures that the manufacturer is committed to minimizing its environmental impact and reducing waste in the production process. 3. ISO 45001: This certification pertains to occupational health and safety management systems. It ensures that the manufacturer has implemented measures to protect the health and safety of its employees and stakeholders. 4. ASTM International Standards: The American Society for Testing and Materials (ASTM) has established various standards for steel coils. These standards cover aspects such as chemical composition, mechanical properties, and dimensional tolerances. Compliance with these standards ensures that the coils meet the specified requirements and are suitable for their intended use. 5. EN Standards: The European Committee for Standardization (CEN) has developed a set of standards for steel coils, known as EN standards. These standards cover similar aspects as ASTM standards but are specific to the European market. 6. JIS Standards: The Japanese Industrial Standards (JIS) are widely used in the steel industry in Japan and other countries in Asia. Compliance with JIS standards ensures that the coils meet the specific requirements of the Japanese market. 7. Product-specific certifications: Depending on the application of the steel coils, additional certifications may be required. For example, if the coils are intended for automotive use, certifications such as ISO/TS 16949 (Quality Management Systems for the Automotive Industry) may be necessary. It is important to note that the specific certifications required may vary depending on the region, industry, and customer requirements. Manufacturers should consult with their customers and industry standards organizations to determine the exact certifications necessary for their steel coils.
- Q: How are steel coils inspected for surface finish after processing?
- Steel coils are typically inspected for surface finish after processing using visual and tactile methods. Trained inspectors visually examine the coils for any imperfections, such as scratches, dents, or uneven coating. They also run their fingers over the surface to detect any irregularities. Additionally, advanced technologies like digital imaging systems and laser scanners are employed to provide accurate and detailed analysis of the surface finish.
- Q: Please explain why steel is denser than wood.
- Steel is made up mostly of iron with a very small amount of carbon added. Iron is a metallic element with a high atomic number which means it's molecules contain lots of particles and consequently it is relatively heavy, or dense. Wood on the other hand is made up mostly of carbon which is a non-metallic element with a lower atomic number and fewer particles in each molecule, and consequently it is a lot lighter or less dense than steel.
- Q: I know the law regarding selling steel core ammo, but is it possible to buy a steel core bullet and load it yourself?
- Please okorder / You're likely to find steel core ammunition from any of those manufacturers, and many more. Have fun... but steel core ammo is no more effective than lead ammunition, unless you're planning a crime spree and want to attempt to punch through a ballistic vest, and even that's not guaranteed.
- Q: What are the challenges in coil leveling for high-strength steel?
- Achieving optimal results in coil leveling for high-strength steel involves addressing several challenges. The steel's inherent hardness and strength present one of the main obstacles. High-strength steel is designed with enhanced mechanical properties, including tensile strength and hardness, making it difficult to deform and shape. To overcome the steel's high-strength nature, specialized leveling equipment is needed. This equipment must exert sufficient force to counter the steel's resistance to deformation. This may involve using stronger and more durable leveling rollers or increasing the pressure applied during the leveling process. Failing to apply the appropriate force can result in incomplete leveling, leading to residual stress and dimensional inaccuracies in the final product. Another challenge in coil leveling for high-strength steel is the potential for springback. Springback refers to the material's tendency to return to its original shape after being deformed. High-strength steel is especially prone to springback due to its higher elastic modulus. This can result in uneven leveling and dimensional variations in the coil. To mitigate springback, advanced leveling techniques can be utilized. These techniques include overbending and pre-bending the steel. Overbending involves bending the steel beyond the desired level, allowing it to spring back to the desired shape. Pre-bending, on the other hand, involves intentionally bending the steel in the opposite direction before leveling it, counteracting the effects of springback. These techniques require precise control and expertise to ensure accurate leveling. Additionally, high-strength steel often has a more pronounced yield point. The yield point is the stress level at which permanent deformation occurs. This can make it challenging to achieve consistent and uniform leveling throughout the coil. Proper adjustment of the leveling equipment and careful monitoring of the leveling process are necessary to effectively address this challenge. Furthermore, high-strength steel coils are often thinner and more sensitive to surface imperfections. Careful regulation of the leveling process is crucial to avoid causing damage to the steel surface, such as scratches or indentations. This may involve using softer leveling rollers or implementing protective measures, such as cushioning materials or coatings, to prevent surface defects. In summary, the challenges in coil leveling for high-strength steel revolve around its inherent hardness, springback tendencies, yield point behavior, and sensitivity to surface imperfections. Overcoming these challenges requires specialized equipment, advanced leveling techniques, precise control, and expertise to ensure accurate and high-quality leveling results.
- Q: What are the different methods of skin pass rolling for steel coils?
- Steel coils can undergo skin pass rolling using various methods, each possessing its own distinctive characteristics and advantages. Some commonly employed techniques include: 1. Dry Skin Pass: This method entails passing the steel coil through rolls without applying any lubricant or coolant. The absence of these substances aids in enhancing the steel's surface finish by minimizing thickness fluctuations and achieving a smoother texture. 2. Wet Skin Pass: This approach involves utilizing a water-based emulsion or coolant during the skin pass rolling procedure. The coolant serves to decrease friction and heat generated during rolling, resulting in improved surface quality and reduced risk of surface defects. 3. Electrolytic Skin Pass: This technique utilizes an electrolytic solution during skin pass rolling. The steel coil is submerged in the solution, and an electric current is applied to the coil, leading to controlled surface etching. This method is particularly effective in improving surface cleanliness and eliminating oxide scale. 4. Temper Mill Skin Pass: This method combines skin pass rolling with a tempering process. The steel coil undergoes a series of rolls, followed by a heating and cooling process to achieve the desired mechanical properties and surface finish. This method is commonly employed for high-strength and automotive-grade steel coils. 5. Tension Leveling: In this method, the steel coil is passed through a series of rolls while under high tension. This elongates the steel, reducing residual stresses and shape defects, thereby enhancing flatness and dimensional stability. It is important to note that the selection of a skin pass rolling method depends on factors such as the desired surface finish, required mechanical properties, and the type of steel being processed. Each method offers its own advantages and limitations, and manufacturers typically choose the most suitable approach based on their specific needs.
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0.4mm-0.5mm Pre-Painted Galvanized Steel Roofing Sheet PPGI
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 100000 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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