Prime quality prepainted galvanized steel 630mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Construction building material galvanized color prepainted cold
rolled steel coil
Prepainted steel sheet is coated with organic layer, which provides higher anti-corrosion property and
a longer lifespan than that of galvanized steel sheets.
The base metals for prepainted steel sheet consist of cold-rolled, HDG electro-galvanized and hot-dip
Alu-zinc coated. The finish coats of prepainted steel sheets can be classified into groups as follows:
polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability polyester, etc
Standard and Grade :
Pre-paint galvanized steel coil | ||||
ASTM A755M-03 | EN10169:2006 | JISG 3312-2012 | ||
Commercial quality | CS | DX51D+Z | CGCC | |
Structure steel | SS GRADE 230 | S220GD+Z | CGC340 | |
SS GRADE 255 | S250GD+Z | CGC400 | ||
SS GRADE 275 | S280GD+Z | CGC440 | ||
SS GRADE 340 | S320GD+Z | CGC490 | ||
SS GRADE550 | S350GD+Z | CGC570 | ||
S550GD+Z | ||||
Application:
Outdoor | Roof, roof structure, surface sheet of balcony, frame of window, door of garage, rolled shutter door, booth, Persian blinds, cabana, etc |
Indoor | Door, isolater, frame of door, light steel structure of house, home electronic appliances, ect. |
- Q: How do steel billets contribute to the overall cost-effectiveness of a structure?
- Steel billets play a crucial role in enhancing the overall cost-effectiveness of a structure in multiple ways. Firstly, steel billets are manufactured through a highly efficient process that ensures minimal wastage of raw materials. This efficiency significantly reduces the production cost of steel billets, making them a cost-effective choice for construction projects. Moreover, steel billets possess exceptional strength and durability, enabling them to withstand heavy loads and adverse weather conditions. This strength eliminates the need for frequent repairs or replacements, saving significant costs in the long run. Additionally, the durability of steel billets ensures the longevity of the structure, reducing maintenance expenses and enhancing cost-effectiveness. Another significant contribution of steel billets to cost-effectiveness lies in their versatility. Steel billets can be easily molded and shaped into various forms, allowing for customization and precise engineering in constructing the structure. This versatility eliminates the need for excessive material wastage and enables the optimization of resources, thereby reducing costs. Furthermore, steel billets have excellent fire resistance properties, making them a safe and reliable choice for structures. By minimizing the risk of fire-related damages, steel billets contribute to reduced insurance costs for the structure, enhancing its overall cost-effectiveness. Lastly, steel billets are often produced using recycled steel, which not only reduces the environmental impact but also lowers the production cost. This eco-friendly aspect further enhances the cost-effectiveness of a structure by reducing the overall carbon footprint and making it more sustainable in the long term. In conclusion, steel billets contribute to the overall cost-effectiveness of a structure by minimizing material wastage, providing strength and durability, offering versatility in design and engineering, ensuring fire resistance, and promoting sustainability. These factors collectively reduce production, maintenance, repair, and insurance costs, making steel billets an economically beneficial choice for construction projects.
- Q: How do steel billets contribute to the manufacturing of marine gear?
- Steel billets play a crucial role in the manufacturing of marine gear due to their unique characteristics and properties. Marine gear includes various components such as propeller shafts, gears, and bearings, which require high strength and resistance to corrosion and wear. Steel billets, which are semi-finished metal forms, serve as the starting material for the manufacturing process. They are typically made from carbon or alloy steel and are shaped into long, rectangular bars. These billets are then further processed to create the specific marine gear components. The high strength of steel billets makes them ideal for marine gear manufacturing as they can withstand the heavy loads and intense pressures experienced in marine environments. This strength ensures the durability and reliability of the gear components, preventing failures and enhancing safety. Corrosion resistance is another critical factor in marine gear manufacturing. Steel billets can be made from stainless steel, which contains chromium and other alloying elements that form a protective layer on the surface, preventing rust and corrosion caused by exposure to saltwater. This corrosion resistance is vital for marine gear as it ensures the longevity and performance of the components in harsh marine conditions. Furthermore, steel billets can be heat-treated to improve their mechanical properties, such as hardness, toughness, and wear resistance. This heat treatment process involves heating the billets to specific temperatures and then cooling them rapidly or slowly, depending on the desired properties. Heat-treated steel billets provide the necessary hardness and wear resistance required for gears, shafts, and bearings to withstand the constant friction and stress encountered in marine applications. In conclusion, steel billets contribute significantly to the manufacturing of marine gear by providing the required strength, corrosion resistance, and mechanical properties. They serve as the foundation material for creating durable and reliable components that can withstand the challenging conditions of the marine environment.
- Q: What are the different methods of steel billet surface inspection?
- There are several methods of steel billet surface inspection, including visual inspection, magnetic particle inspection, ultrasonic testing, and eddy current testing. Visual inspection involves examining the surface for any visible defects or irregularities. Magnetic particle inspection uses magnetic fields and iron particles to detect surface cracks or discontinuities. Ultrasonic testing uses high-frequency sound waves to detect internal defects or anomalies in the billet's surface. Eddy current testing involves passing an electrical current through the billet and detecting changes in the current caused by surface defects. These methods help ensure the quality and integrity of steel billets before further processing or use.
- Q: How do steel billets contribute to the manufacturing of renewable energy systems?
- The manufacturing of renewable energy systems heavily relies on steel billets, as they serve as the necessary foundation for various components. These billets are essentially semi-finished steel products that are cast into specific shapes, making them highly adaptable and versatile for different renewable energy applications. Wind turbines, for instance, require a sturdy and stable structure to support the blades and generator. Steel billets are used to construct the tower, which acts as the backbone of the wind turbine. These towers must endure harsh weather conditions and bear the weight of the blades, making the strength and durability of steel crucial. Similarly, solar energy systems, particularly photovoltaic (PV) panels, also rely on steel billets. Steel frames are utilized to provide structural support for the PV panels, ensuring they are securely mounted and capable of withstanding various environmental conditions. Additionally, steel billets are used in the production of solar trackers, which optimize the positioning of PV panels to maximize energy generation by tracking the sun's path throughout the day. Moreover, steel billets contribute to the manufacturing of hydroelectric power systems. In hydroelectric power plants, large turbines are utilized to convert the energy from flowing water into electricity. These turbines necessitate strong and reliable components, such as shafts and mechanical parts, which are often made from steel billets. The high strength and corrosion resistance of steel make it an ideal material for these applications. Furthermore, steel billets are employed in the production of energy storage systems, like batteries. These billets are used to create durable and secure enclosures for the batteries, ensuring their protection and safe operation. Steel's ability to withstand high temperatures and resist fire makes it a suitable choice for battery housing and containment. In conclusion, steel billets are indispensable in the manufacturing of renewable energy systems, providing the required strength, durability, and versatility for various components. Whether it is wind turbines, solar panels, hydroelectric turbines, or energy storage systems, steel billets play a critical role in enabling the reliable and efficient generation of renewable energy.
- Q: How do steel billets compare to other types of metal billets?
- Steel billets possess several advantages over other types of metal billets. Firstly, the outstanding strength and durability of steel make it highly resistant to wear and tear, rendering steel billets suitable for a wide range of applications in the construction, automotive, and manufacturing industries. Furthermore, steel billets exhibit excellent heat resistance, enabling them to endure high temperatures without distorting or compromising their structural integrity. This quality makes steel billets perfect for the production of components that are subjected to extreme heat, such as engine parts or industrial machinery. Moreover, steel billets provide versatility in terms of shape and size. They can be effortlessly molded and formed into various configurations, empowering manufacturers to create intricate and complex designs. This adaptability makes steel billets the preferred choice in industries that necessitate customized or intricate parts. Additionally, steel billets boast high recyclability, making them an environmentally sustainable choice. The recycling process of steel requires significantly less energy compared to other metals, resulting in reduced carbon emissions and environmental impact. This aspect has led to an increased preference for steel billets in industries that prioritize sustainability and environmental responsibility. In conclusion, steel billets surpass other metal billets due to their exceptional strength, heat resistance, versatility, and recyclability. These qualities make steel billets the preferred choice for numerous industries, offering a combination of durability, functionality, and environmental sustainability.
- Q: Are billet metals within the metal range?
- Two kinds of billets, ferrous, ferrous and metallic, belong to ferrous metal, copper and copper alloy, aluminium and aluminium alloy, and belong to colored metal
- Q: What shape is the billet?
- Material standardThickness range: 150-240mm +/-5mm, width range: 880-1530mm +/-20mmLength range: 3700-10000mm +/-500mmCross section size: 64*64; 82*82; 98*98; 124*124; 152*170mm; 120*150; 152*164;Length: 9000mmSection tolerance: square billet: +1.0/-2.0----+3.0/-1.0mm slab: width: +/-2.0MM thickness: +/-3.0MMLength tolerance: +/-200MMDiagonal tolerance of section: 3.5-8.0MMBillet cross section dimension requirements: <1242MM, not allowed; =1242MM, <=2MM, >1242MM, <=3MMBreaking (shear) expansion deformation: <1242MM square billet: no control; slab: <=15MMSurface inclination: no more than 0.1 of the bloomBending length: not more than 10MM per 1MTwist: length <=5M, <=11. Length <=7.5M, <=5.Material 3SP/PS, chemical composition,%:C, Mn, Si, S, P
- Q: What are the environmental impacts of manufacturing steel billets?
- The extraction and processing of raw materials, energy consumption, and waste generation all have a significant impact on the environment when manufacturing steel billets. 1. When extracting raw materials, such as iron ore, coal, and limestone, from the earth, mining practices may result in deforestation, habitat destruction, soil erosion, and water pollution. The extraction of iron ore specifically requires a large amount of water, which can strain local water supplies. 2. The production of steel billets demands high temperatures, which are typically achieved by burning fossil fuels like coal and natural gas. This energy-intensive process increases greenhouse gas emissions, including carbon dioxide (CO2) and nitrogen oxides (NOx), contributing to climate change and air pollution. 3. The combustion of fossil fuels in steel production also releases particulate matter (PM), sulfur dioxide (SO2), and other harmful pollutants into the air. These emissions can negatively impact human health, leading to respiratory problems and the formation of smog. 4. Steel manufacturing generates wastewater that contains chemicals and heavy metals. If not managed properly, these pollutants can contaminate water bodies, harming aquatic ecosystems and posing risks to human health. Additionally, the cooling process for steel production requires large amounts of water, potentially leading to water scarcity in certain regions. 5. The production of steel results in significant waste, including slag, dust, and sludge. These by-products may contain toxic substances and require careful handling and disposal to prevent contamination of soil and water. To mitigate these environmental impacts, various measures can be taken. These include adopting cleaner production technologies, improving energy efficiency, promoting material recycling and reuse, implementing effective waste management practices, and investing in renewable energy sources. Additionally, companies can reduce their carbon footprint by implementing carbon capture and storage technologies or transitioning to low-carbon energy sources like electric arc furnaces powered by renewable energy. Furthermore, government regulations and international agreements play a crucial role in enforcing environmental standards and encouraging sustainable practices within the steel manufacturing industry.
- Q: What are the common surface defects in steel billets during reheating?
- During the reheating process of steel billets, several common surface defects may occur. These defects can have a negative impact on the quality and integrity of the final product. Some of the most common surface defects in steel billets during reheating include: 1. Scale Formation: When steel billets are exposed to high temperatures, a layer of iron oxide, known as scale, can form on the surface. Scale is brittle and can easily crack or flake off, leading to a rough and uneven surface. 2. Decarburization: Decarburization is the loss of carbon from the surface of the steel billets due to exposure to high temperatures. This can result in a reduced carbon content on the surface, making it prone to cracking, reduced hardness, and poor mechanical properties. 3. Surface Oxidation: Steel billets can undergo oxidation when exposed to oxygen in the air during reheating. This can lead to the formation of a thin layer of oxide on the surface, affecting the surface finish and potentially reducing the corrosion resistance of the steel. 4. Overheating: Overheating during reheating can cause localized melting or partial melting of the steel billets. This can result in surface irregularities, such as pits, cracks, or blisters, which compromise the integrity of the billets. 5. Hot Spots: Uneven heating of the steel billets can lead to the formation of hot spots on the surface. These localized areas of excessive heat can cause surface defects like warping, cracking, or surface defects like scorching or discoloration. 6. Surface Contamination: During reheating, steel billets can come into contact with contaminants, such as dirt, oil, or other foreign materials. These contaminants can adhere to the surface of the billets, leading to surface defects like stains, pitting, or uneven surface finish. 7. Thermal Shock: Rapid changes in temperature during reheating can cause thermal shock, leading to surface defects like cracks or distortions. This can occur when the steel billets are exposed to water or a cooling medium or when there are substantial temperature differences across the surface of the billets. To minimize these surface defects in steel billets during reheating, proper heating techniques, control of heating rates, and the use of protective coatings or atmospheres can be employed. Additionally, regular inspection and quality control measures can help identify and mitigate surface defects before they affect the final product's quality.
- Q: What is the role of steel billets in the manufacturing of railway wheels?
- The production of railway wheels heavily relies on steel billets, which serve as the primary raw material. These billets are crucial in creating wheels that possess exceptional strength, durability, and the ability to endure heavy loads, extreme temperatures, and constant wear and tear. To begin with, steel billets undergo a melting process and are then shaped into a cylindrical form, similar to the final shape of the railway wheel. Subsequently, these billets go through a series of manufacturing steps, including hot rolling, forging, and machining, to achieve the desired shape and dimensions of the railway wheel. One of the key advantages of using steel billets lies in their remarkable strength and toughness. Steel is widely recognized for its exceptional mechanical properties, such as high tensile strength and hardness. These characteristics are indispensable for railway wheels, as they need to bear immense loads and resist deformation even under extreme pressures. Furthermore, steel billets provide the necessary metallurgical properties essential for railway wheels. They can be alloyed with additional elements like carbon, manganese, and chromium to enhance their strength, hardness, and resistance to corrosion and fatigue. This ensures that the railway wheels maintain their structural integrity and performance over an extended period. In conclusion, steel billets play a fundamental role in the manufacturing process of railway wheels. They provide the raw material needed to create robust, durable, and dependable wheels that can withstand the challenging conditions of railway operations. By utilizing steel billets, railway wheels are able to meet the strict safety, performance, and longevity requirements of the transportation industry.
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Prime quality prepainted galvanized steel 630mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 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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