cold rolled steel coil for construction roof
- 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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Name | steel coil |
Grade | SPCC,SPCD ,SPCE, Q235 |
BASE PLATE | Cold rolled steel sheet, hot dipped zinc coated steel sheet hot dipped A-Z coated steel sheet |
EQUIPMENT | Double coating double baking; |
CAPACITY | 5000Mt/week |
SIZE | Thickness 0.2mm—2.0mm |
WIDTH | 600-1250MM |
SUREFACE QUALITY | Ⅰ - advanced finishing surface, Ⅱ - more advanced finishing surface, Ⅲ - ordinary finishing surface |
COIL WGT | 3Mt - 8Mt |
COIL ID | φ508mm,φ610mm |
Heat treatment condition | A - annealing, S - annealing + flat, 8 - (1/8) of the hard hard, 2, 4 - (1/4) - hard, 1 (1/2) - hard. |
Advantages:
a. Our company produce various specification and models and national standards
of steel coil
b. Using high-quality material and advanced production technology and equipment
for processing
c. Applicable to a humid climate and the harsh corrosive environment
d. Products has been all over the country more than 20 provinces, municipalities and autonomous regions, and have been exported to Europe, North American, the Middle
East, the South East Asia, Africa, Asia,European
Main characteristics :
1.strong corrosion resistance
2.surface quality
3.conducive to deep processing
4.economy and practicality
Packaging & Delivery:
| Packaging Detail: | 1,Each bare coil to be securely tied with two bands through the eye of coil (or not) and one circumferential. 2,the contact points of these bands on the coil edge to be protect with edge protectors. 3,Coil then to be properly wrapped with water proof /resistant paper, it then to be properly and completely metal wrapped. 4,Wooden and iron pallet can be used or as your requirements. |
| Delivery Detail: | 7-30 days |
Production Process :
Un-coiler------stitching machine-----barrels-----tension machine-----uncoil-----alkali washing and degreasing-----cleaning----drying----passivation-----drying
----cooling----coil----packing and warehousing
- Q: What are the typical lead times for ordering steel coils?
- The typical lead times for ordering steel coils can vary depending on several factors, including the supplier, the quantity and specifications of the coils, as well as the current market conditions. However, on average, lead times can range from a few weeks to a couple of months. It is always recommended to contact the specific supplier for more accurate information regarding lead times.
- Q: What are the different methods of painting steel coils?
- There are several methods of painting steel coils, including coil coating, spray painting, and powder coating. Coil coating involves applying a liquid coating to the surface of the steel coil, which is then cured and dried. Spray painting involves using a spray gun to apply paint to the coil, typically in multiple layers. Powder coating involves electrostatically applying a dry powder to the coil, which is then cured and fused onto the surface. Each method has its advantages and is chosen based on factors such as durability, cost, and desired finish.
- Q: What are the different types of steel surface finishes for coils?
- There are several types of steel surface finishes for coils, including hot rolled, cold rolled, galvanized, coated, and pickled and oiled.
- Q: How do steel coils contribute to the renewable energy sector?
- The renewable energy sector benefits from the utilization of steel coils in multiple ways. To begin with, wind turbines rely on steel coils for their construction. The towers of these turbines are crafted using steel, and structural components are fabricated from steel coils. The exceptional strength and durability of these coils enable them to withstand the harsh environmental conditions commonly found in wind farms. Furthermore, solar panels also depend on steel coils during their production. Steel is utilized to create frames and support structures that securely hold the panels in place. These frames must possess sufficient strength to endure various weather conditions, and steel coils offer the requisite stability and robustness. Additionally, steel coils are essential in the development of transmission lines that transport electricity generated from renewable sources. Steel is widely employed for constructing the poles and towers that support these transmission lines, as it affords the necessary strength to bear the weight of the cables and endure extreme weather conditions. Moreover, energy storage systems, which play a crucial role in storing surplus energy from intermittent renewable sources like wind and solar, are heavily reliant on steel coils. Battery enclosures and racks are fabricated using steel coils to ensure the safety and stability of these systems. In summary, steel coils make a significant contribution to the renewable energy sector by providing the strength, durability, and stability required for various infrastructure components. Their utilization in wind turbines, solar panels, transmission lines, and energy storage systems supports the growth and advancement of renewable energy sources, thus establishing them as an indispensable element in the transition towards a greener and more sustainable future.
- Q: my step father bought a big steel drum grill it has steel sheets (very thin) that go inbetween the flame and the food (closer to the flame) with that there the food will not cook, it does not get hot enough????? please help... what should we do
- yes that keeps the fat from dripping on the burners - just try it - it works.
- Q: Maybe it is obvious. But i have thought alot about it.I thought steel at a cool temperature was unbreakable. I am not one for science or physics or engineering (i am a political science major). But i don't understand why the planes that struck the world trade center on 9-11 didn't just dent the side and fall,How did the place break the steel? Was it the velocity? Is steel easily broken?I realized that i wasn't taught how the planes broke the steel, and that no one ever asked. I searched the web and i couldn't find the answer or even anyone who had asked the question before.(i don't care about conspiracy theories, i just want scientific facts)
- steel is not unbreakable. the world trade centers had a steel infrstructure, but were mostly glass and materials with many other flaws. steel is not the top of the rocwell scale(materials rated by thier hardness) when the planes impacted the outside of the buildings, you have to take into account that the planes skins and infrastructure where made of aluminum(too keep weight down) so once the outer skin of the planes was breached, you have to account for the heat created by burning fuel, friction, and the momentum of a vehicle that weighs tons hitting an immovible object. just keep in mind that if you propel a piece of straw at an proper speed, you can have it impale a full grown palm tree
- Q: How does adding carbon to Iron make it stronger? How does steel look the molecular structure in comparison to Iron? looking for a very scientific answer =]
- Cast Iron' is typically brittle, while 'Maleable Iron' has a small percentage of carbon which allows it to be hammered and formed. Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron. Steel is a crystalline structure of iron molecules interspersed with carbon molecules. This is properly known as cementite. The hardness and malleability of steel depends not only on the carbon content, but on how the carbon and iron molecules are arranged to one another. Internal stresses in the steel's crystalline structure will increase or decrease depending on the temperature it is subjected to and the rate at which molten steel is cooled. This 'tempering' can increase the strength of the steel at the expense of brittleness.
- Q: What are the different methods of surface treatment for steel coils?
- There are several different methods of surface treatment for steel coils, each with its own benefits and applications. Some of the most common methods include: 1. Hot-dip galvanizing: This is a process where the steel coil is immersed in a bath of molten zinc, which forms a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance and is commonly used in outdoor applications such as roofing, fencing, and automotive parts. 2. Electro-galvanizing: In this method, a thin layer of zinc is electroplated onto the surface of the steel coil. Electro-galvanizing offers similar corrosion resistance as hot-dip galvanizing, but with a thinner coating. It is often used in applications where a smooth and aesthetically pleasing finish is desired, such as appliances, electrical equipment, and automotive components. 3. Powder coating: Powder coating involves applying a dry powder to the surface of the steel coil, which is then cured under heat to form a durable and protective layer. This method provides excellent resistance to chipping, scratching, and fading, making it suitable for a wide range of indoor and outdoor applications. 4. Painting: Steel coils can also be treated with conventional liquid paint coatings, which provide both protection and aesthetic appeal. Paint coatings can be customized to meet specific requirements such as corrosion resistance, UV protection, or chemical resistance. They are commonly used in industries such as construction, automotive, and appliances. 5. Pickling and oiling: This method involves removing any scale or rust from the surface of the steel coil by dipping it in an acid solution (pickling), followed by a coating of oil to prevent reoxidation. Pickling and oiling are typically used for temporary corrosion protection during storage and transportation of steel coils. 6. Pre-painted coatings: Steel coils can be coated with pre-painted finishes at the manufacturing stage. Pre-painted coatings are applied in a continuous process, where the steel coil is passed through a coating line, and a layer of paint is applied. This method provides a wide range of colors and finishes, making it popular in the construction, automotive, and appliance industries. These are just a few of the methods commonly used for surface treatment of steel coils. The choice of method depends on factors such as the desired level of corrosion resistance, aesthetics, environmental conditions, and the specific application requirements.
- Q: What are the major challenges faced by steel coil manufacturers?
- The major challenges faced by steel coil manufacturers can be categorized into several key areas. 1. Raw Material Costs: One of the primary challenges is the fluctuating prices of raw materials, such as iron ore and coal, which are essential for steel production. Manufacturers have to constantly monitor and adjust their pricing strategies to mitigate the impact of these fluctuations and maintain profitability. 2. Global Competition: Steel coil manufacturers face intense competition from both domestic and international players. Globalization has led to an increase in the availability of steel coils from various regions, making it crucial for manufacturers to differentiate themselves through quality, pricing, and customer service to remain competitive. 3. Technological Advancements: The steel industry is constantly evolving and adopting new technologies. Manufacturers need to invest in modern equipment and machinery to improve efficiency, reduce costs, and meet stringent quality standards. Keeping up with technological advancements can be challenging, especially for smaller or less financially stable manufacturers. 4. Environmental Regulations: Steel production is a resource-intensive process that can have a significant impact on the environment. Governments worldwide are imposing stricter regulations on emissions, waste disposal, and energy consumption, which poses a challenge for steel coil manufacturers. Compliance with these regulations requires significant investments in pollution control technologies and sustainable practices. 5. Skilled Workforce: The steel industry requires a skilled workforce with expertise in various areas such as metallurgy, engineering, and operations. However, attracting and retaining skilled employees can be challenging, as the industry faces a shortage of qualified personnel. Manufacturers need to invest in training and development programs to ensure a competent workforce and maintain operational excellence. 6. Economic Volatility: Steel coil manufacturers are highly sensitive to economic fluctuations. During periods of economic downturns, demand for steel products decreases, leading to excess capacity and lower profit margins. On the other hand, during economic booms, manufacturers may face challenges in meeting increased demand and ensuring timely delivery. 7. Transportation and Logistics: Steel coils are bulky and heavy, making transportation and logistics a significant challenge for manufacturers. Optimizing supply chain management, coordinating with freight partners, and ensuring timely delivery of products to customers across various geographies can be complex and costly. In conclusion, steel coil manufacturers face several challenges, including raw material costs, global competition, technological advancements, environmental regulations, skilled workforce requirements, economic volatility, and transportation logistics. Overcoming these challenges requires proactive strategies, continuous improvement, and a focus on innovation to remain competitive in the industry.
- Q: Apparently, this has to do something with electrochemical cells.
- Steel wool is a mild abrasive. I don't know what it is you are cleaning, but it is probably to remove any coating or oxidisation from the metal. Maybe you are using a metal for an electrode (perhaps a steel nail pushed into a lemon?).
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cold rolled steel coil for construction roof
- 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
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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