Pre-painted rolled Steel Coil for Construction Roofing Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
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Structure of Prepainted Rolled steel Coil for Construction Roofing
Description of Prepainted Rolled steel Coil for Construction Roofing
Prepainted Rolled steel Coil is a kind of coated steel coil/sheet. With the cold rolled steel of different strength and thickness as substrate, it is produced through applying Al-Zn coat on both faces by hot dip process. In its coating, Al accounts for about 55%, Si 1.6%, while the remaining is Zn. Aluminum zinc coils enjoys both the physical protective feature and durability of Al and the electrochemical protective property of Zn. And its surface has bright silver color and regular embossed-like figure, which are highly decorative.
Main Feature of Prepainted Rolled steel Coil for Construction Roofing
1.Corrosion resistance: It mainly depends on the aluminum protection. When the zinc being worn, the aluminum will form a dense layer of aluminum oxide, resist corrosion material to prevent further corrosion inside.
2. Heat resistance: Aluminum zinc alloy steel sheet has excellent heat resistance, can withstand high temperatures over 300 centigrade, and is similar with aluminized steel high temperature oxidation resistance. It often used in chimney pipes, ovens, fluorescent lighting device and the device cover.
3. Heat reflective: Galvanized steel plate heat-reflective high rate is twice as galvanized steel, often used to make insulation materials.
4. Economy: Because density of 55% AL-Zn is smaller than the density of Zn, so in the same weight and thickness of Galvanized zinc layer, aluminum-zinc steel plate is larger area more than 3% of galvanized steel sheet.
Applications of Prepainted Rolled steel Coil for Construction Roofing
1. Construction and building: roofing; ventilating duct; handrail; partition panel;etc.
2. Electric appliance: refrigerator; washing machine; refrigerator; DVD;etc.
3.Transportation: oil tank; road sign; etc.
4.Agriculture:barn; etc.
5.Others:vending machine; game machine; etc.
Specifications of Rolled steel Coil for Construction Roofing
Product | Prepainted Rolled steel Coil for Construction Roofing |
Material Grade | SGCC / SGCH / DX51D+AZ, etc |
Thickness | 0.2-3.0mm |
Width | 600-1500mm |
Tolerance | Thickness: +/-0.02mm , Width:+/-2mm |
Zinc-coating | AZ40-150g/m2 |
Technique | Raw material: Hot rolled steel coil --> Cold rolled_>hot dipped galvalume |
Surface | Dried, Chromated, Unoiled |
Spangle | Regular spangle , small spangle, zero spangle |
ID | 508MM |
Coil weight | 10MT max |
Export package | Cardboard inner sleeves, Waterproof paper, galvanized steel covered and steel strip packed |
FAQ of Prepainted Rolled steel Coil for Construction Roofing
We have organized several common questions for our clients，may help you sincerely：
1. What is the minimum order quantity ?
Our MOQ is 50mt for each size. And we will consider to give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your offer the better price we can provide.
2. How long can we receive the product after purchase?
Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.
3. How to guarantee the quality of the products？
We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.
- Q:How are steel coils used in the manufacturing of automotive chassis?
- Steel coils are used in the manufacturing of automotive chassis as they provide the necessary strength and durability required to support the vehicle's structure. These coils are used to form various components of the chassis, such as frame rails, cross members, and suspension mounts, ensuring optimal stability and safety of the vehicle.
- Q:I work at a tool store. I told my boss last week we needed more pruning shears so he did get more of all kinds. Thing is out of all of the shears he brought Two of different kinds say they are made out of Japanese steel. I have never heard of Japanese steel so now i ask you (the public) whats the difference between it and steel from the US or any other country? Those shears are worth more then the ones he gets from Mexico and China and even more than Black and Decker, Fiskars, etc but not more then Corona brand ones.
- After WWII, The United States in order to help the Japanese get back on their feet, sent over the equipment needed to make the newest types of foundries available at the time. While this was a big boon for the Japanese, this meant that most of our foundries were using the older technologies. Japanese Steel then had a bit of a edge on purity than ours did and when you have a purer steel, you have a better product. Since then, they've stayed at the top of the game when it comes to steel. Not only because of the equipment which we have caught up with them on and stay with them on, but because they also have a stronger tradition regarding steel. They have made quality steel blades that were decades ahead of what the West could produce. So you couple that quality of metallurgy with modern techniques we gave them, they took steel making and and ran with it to be one of the top steel producers in the world. Don't get me wrong. We in the US can make Steel as well as they can. But we have ranges of steel. You can get a steel tool that is as good as a Japanese offering (if not more so) but at the same time you can also get a steel tool that is well...Dollar Store crap that'll break if you look at it wrong. While their best may not be better than our best, their worst is often far better quality than our worst. Their lower end products are often our medium grade tools and blades.
- Q:How are steel coils used in the production of structural steel?
- Steel coils are widely used in the production of structural steel due to their versatility and efficiency. These coils, which are made by rolling steel into a cylindrical shape, serve as the raw material for various structural steel products. One of the primary uses of steel coils in the production of structural steel is in the manufacturing of beams and columns. These coils are processed in steel mills, where they undergo cutting, shaping, and bending to form the desired profiles. Beams and columns are essential components of any building or infrastructure project as they provide support and stability. Steel coils are also used in the fabrication of steel plates, which are widely used in the construction industry. These plates are used for flooring, cladding, and roofing purposes, adding strength and durability to structures. By using steel coils as the starting material, manufacturers can produce steel plates of various thicknesses and sizes according to project requirements. Furthermore, steel coils are an integral part of the production process for pipes and tubes. These coils are formed into a cylindrical shape and then welded or seamless to create pipes and tubes of different diameters. Steel pipes and tubes are vital for various applications, including water and gas transportation, structural frameworks, and industrial systems. In addition to these applications, steel coils are also used in the production of other structural steel products such as angles, channels, and hollow sections. These products are widely used in construction projects, providing structural support, reinforcement, and aesthetic appeal. Overall, steel coils play a crucial role in the production of structural steel by serving as the raw material for various products. Their versatility, ease of processing, and strength make them an ideal choice for manufacturers, ensuring the production of high-quality and reliable structural steel components.
- Q:7850kg/cu.m density is typical for all type of steel? like reibar, I- beam and so on
- 90% of the steels used today are plain mild carbon steels consisting of iron with less than 1% carbon content and as such have a density of about 7750 kg/cubic meter. Some special steels which have a significant percentage of alloying elements such as chrome or manganese or other elements will have greater density bringing the steel up to about 8000 kg / cubic meter. There are a greater many factors influencing the exact density of a steel. Even for steels of exactly the same content of iron , carbon and other alloying elements, there may be a difference ( very small mind you ) in density due to work hardening. The difference in this case is due to movement of dislocations which become locked in the grain boundaries and this forms a more dense crystal structure. For this same reason, the theoretical density of steel (which does not take into account dislocations) is greater than the measured density of steel.
- Q:What are the common methods of testing the strength of steel coils?
- Steel coils can be tested for strength using various methods. Tensile testing is one such method, which involves applying tension to the coil until it breaks. This test provides information about the coil's ability to withstand force and its tensile strength. It also reveals details about its yield strength and elongation properties. Another common method is hardness testing, which determines the steel's resistance to indentation or scratching. Different techniques like Rockwell, Brinell, or Vickers tests are utilized to measure hardness. This test helps determine the steel's ability to resist wear or deformation. To evaluate the coil's ductility and flexibility, bend testing is performed. The coil is bent to a specific angle and checked for any signs of cracking or fracturing. Bend testing assesses the material's capacity to withstand bending or forming procedures without failure. Additional methods of testing include impact testing, where controlled impacts are applied to assess the coil's resistance to sudden loading conditions, and fatigue testing, which involves subjecting the coil to cyclic loading to determine its endurance limit and potential for failure under repeated stress. It is important to note that the specific testing methods used may vary depending on the intended application and industry standards. Non-destructive testing techniques, such as ultrasonic testing or magnetic particle inspection, can also be employed to detect internal defects or flaws in steel coils without causing any damage.
- Q:i would like to know of any companies who buy shredded scrap steel
- We are one of the biggest steel mills in Asia. Under our group, we have steel mills in Thailand and Bangladesh. On the monthly basis, we purchase steel scrap HMS1/2 80:20 and the shredded ISRI210/211, ISRI211 by bulk and 20' container to Thailand and Bangladesh. Due to the limitation of our existing shredded steel scrap supplier, we need to get more supply of the shredded. Please contact us or offer us of ISRI 210/211 or ISRI211 CFR Chittagong, Bangladesh with 500mt - 2000mt per shipment by 20' container. If any questions, please feel free to contact us.
- Q:What are the different types of steel coil storage containers?
- There are several types of steel coil storage containers, including coil racks, coil cradles, coil saddles, coil chocks, and coil cassettes. These containers are designed to safely and efficiently store and transport steel coils of various sizes and weights, ensuring their protection and preventing damage during handling and storage.
- Q:What are the different methods of annealing steel coils?
- Steel coils can be annealed using various methods, each with its own advantages and applications. Full annealing, process annealing, and spheroidize annealing are the main methods. The most common method is full annealing, wherein the steel coils are heated above their critical point (usually between 800 and 900 degrees Celsius or 1472 and 1652 degrees Fahrenheit) and then slowly cooled in a controlled manner. This process refines the grain structure of the steel, making it softer and more ductile. Full annealing is employed to relieve internal stresses, enhance machinability, and improve the overall mechanical properties of the steel. Process annealing, sometimes called subcritical annealing or stress relief annealing, is used to reduce the hardness and brittleness of steel coils. It involves heating the coils below their critical point (typically between 550 and 650 degrees Celsius or 1022 and 1202 degrees Fahrenheit) and then slowly cooling them. This method relieves internal stresses that may have developed during previous manufacturing processes like cold working or welding. Process annealing is commonly used to enhance the formability and toughness of steel coils. Spheroidize annealing is a specialized form of annealing that softens high carbon and alloy steels. It entails heating the steel coils slightly below their critical point (usually between 650 and 700 degrees Celsius or 1202 and 1292 degrees Fahrenheit) and holding them at that temperature for an extended period. This allows the carbides within the steel to transform into rounded or spheroidal shapes, thereby increasing machinability and ductility. Spheroidize annealing is frequently employed in the production of cutting tools, bearings, and other applications that require improved machinability. In addition to these main methods, there are variations and specialized techniques like recrystallization annealing, intercritical annealing, and solution annealing. Each method has specific parameters and temperature ranges. The choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and intended application of the steel coils.
- Q:Is there any other way of testing whether or not you have a 1944 Steel penny that won't damage the penny. The magnet test doesn't seem to work cause even when I try to get a 2007 penny to stick to the magnet...it won't. So is there some kind of magnet needed? Like power wise or anything like that, if not then I need to know what are other ways of testing the 1944 penny.
- 1944 Steel Penny
- Q:What are the environmental considerations of using steel coils?
- There are several environmental considerations associated with using steel coils. Firstly, the production of steel coils involves a significant amount of energy and resources. Steel production is a carbon-intensive process, contributing to greenhouse gas emissions, particularly from the use of fossil fuels in the manufacturing process. The extraction and processing of iron ore to produce steel coils also require extensive mining activities, which can lead to habitat destruction and soil erosion. Additionally, the transportation of steel coils can have environmental impacts. Steel coils are generally heavy and bulky, requiring large vehicles for transportation. This can result in increased carbon emissions and air pollution due to the use of fossil fuel-powered transportation methods. Furthermore, the disposal or recycling of steel coils can pose environmental challenges. If steel coils are not properly managed after use, they can end up in landfills or incinerators, contributing to waste generation and potential pollution. However, steel is a highly recyclable material, and by implementing effective recycling practices, the environmental impact of steel coil disposal can be minimized. Lastly, the use of steel coils in construction and manufacturing industries can have indirect environmental impacts. Steel coils are commonly used in the construction of buildings and infrastructure, which can result in deforestation and habitat loss due to land clearing. Moreover, the manufacturing processes that utilize steel coils may generate waste, pollutants, and emissions that can harm ecosystems and human health if not properly regulated and managed. To mitigate the environmental considerations associated with using steel coils, various measures can be taken. These include implementing energy-efficient technologies and practices in steel production, promoting sustainable mining practices, optimizing transportation logistics to reduce emissions, encouraging responsible disposal and recycling of steel coils, and promoting the use of alternative materials or steel products with a lower environmental footprint, such as recycled steel or steel with a higher proportion of recycled content.
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Pre-painted rolled Steel Coil for Construction Roofing Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
OKorder Service Pledge
OKorder Financial Service
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