Prepainted Rolled steel coil for Construction Roofing use
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 30000 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:What are the major challenges faced by steel coil manufacturers?
- Some major challenges faced by steel coil manufacturers include fluctuations in raw material prices, increasing competition from international markets, the need to meet strict quality and safety standards, and the impact of global economic conditions on demand for steel products. Additionally, environmental regulations and sustainability concerns have also become important challenges for steel coil manufacturers.
- Q:Are Steel Building Kits really helpful while erecting a steel building?
- I put up a 30'x40' Mueller Steel Building from a bolt together kit 6 yrs ago. Fully insulated, 2 10'x10' roll up doors, 1 walk thru door, 3 windows, 2' overhang all around, and gutters. The building price minus the slab was about $9500. The only special equipment was a neighbor's large Farmall with a hay spike on the FEL that we used to lift the trusses in place. Then it was mainly cordless drills to put in LOTS of self tapping screws, circular saw with metal cutting blade, tall ladders, etc. Had help putting up the trusses and putting up the roof panels. Everything else I did by myself. Took about 6 wks, but that was only working weekends and maybe 3 evenings a week since that land is 30 miles from my house. Would have gone a lot faster with at least one helper.
- Q:Can i make holes in iron and steel with somekind of drill bit. All i have is metal drill bits. Mabey like 68 of them but i dont know wich one to use and if they will penetrate.
- It really depends. If you are drilling iron, I assume you are talking about cast irons and there are many different types, some are easier to drill (and machine) than others. For steels, there are many many different types of steels which can have a huge range of physical properties. In fact, your drill bits are almost certainly made of some type of steel alloy. If your drill bit has the same hardness as the steel you are trying to drill, it will be difficult to drill. If the steel is harder than the drill bit, you won't make a hole, you'll just break your drill bit into smaller pieces. There are drill bits that use carbide inserts or diamond composite inserts and these will drill through steel. You can do a quick check. Take a drill bit and, just by hand, see if it scratches the steel. If it does, then the drill bit is harder than the steel and you can probably drill a hole. If you have trouble drilling holes, consult a machinist. There are many factors which influence how well you can drill holes including use of cutting oils/lubricants, cutting speed, pressure, rake angle, etc.
- Q:Hi, I need to know why stainless steel is rust proof please tell me its for my science project. :)
- Stainless steel is an alloy of iron and other metals, notably Chromium and vanadium. You do not see it with the naked eye but at the surface of any stainless steel (SS) there are iron atoms and chromium atoms that are exposed. However, the chromium reacts preferentially to form an oxide. In essence, think of chromium sacrificing itself for iron so that iron will not rust. What a nice guy huh! This is called passivation just like most responders said. However, more than that the chromium oxide forms a tight protective layer that forms a physical barrier preventing Oxygen or any oxidant to reach and attack the iron underneath it. Also, the chromium oxide formed is not FLAKY and porous, so it does not mar much of the surface as an iron oxide (rust) would. For science project, you may not make it too technical but you can make a reference or make an ANALOGY of rust prevention to high school or social situations as being there for your friend or classmate But in real life, when the odds are too great, that protection afforded by chromium may not be enough. Because eventually all steel exposed to very oxidizing atmospheres will rust. Just a little break in the surface is enough to start the process of rusting.
- Q:I'm looking to get a track bike/ fixie to ride around the city of Chicago. I've looked at many bikes and they're mostly made out of Hi Ten steel. My old fixie (which was stolen at North Ave Beach) was made out of aluminum (KHS FLITE 100). How big of a difference is it between aluminum and steel? I know steel is heavier but how does it effect the ride? Is a aluminum bike or a steel bike better to get to ride around the bike path and in the city of Chicago?
- A steel frame would weigh at most 2 pounds more than an aluminum frame. That would be comparing a less expensive steel frame to a really good aluminum frame. However if you are talking about comparable prices the weight difference would be much less, about 1 pound
- Q:Can steel coils be coated with epoxy?
- Yes, steel coils can be coated with epoxy. Epoxy coating provides a protective layer that enhances the durability and corrosion resistance of steel coils.
- Q:How are steel coils used in the production of roofing systems?
- The production of roofing systems involves the utilization of steel coils in various ways. Initially, the steel coils undergo unrolling and are then fed into a machine, where they are cut to the desired length for the roofing panels. Typically, these coils are composed of galvanized steel, which is coated with a layer of zinc to protect against rust and corrosion. Once the coils have been cut, they are subsequently passed through a roll-forming machine. This machine is responsible for shaping the steel into the necessary profile for the roofing panels. The specific shape of the panels may differ depending on the design and functionality of the roofing system. Following the formation of the steel, it may undergo additional processes, such as embossing or stamping, to incorporate texture or patterns onto the panels. This aids in enhancing the visual appeal of the roofing system and providing it with a distinct appearance. After the steel panels have been formed and processed, they are coated with supplementary protective layers or finishes, such as paint or polymer coatings. These coatings further augment the durability of the roofing system and offer resistance against weather elements, UV rays, and corrosion. The final step in the production of roofing systems entails the installation of the steel panels on the roof. Typically, the panels are secured to the roof structure using screws or nails. The panels are designed to interlock, ensuring a secure and watertight installation that safeguards against leaks and moisture infiltration. In conclusion, steel coils play a vital role in the production of roofing systems, providing a durable and long-lasting material that can withstand harsh environmental conditions. The versatility of steel permits various design options and customization, making it a favored choice for roofing applications.
- Q:What are the challenges in the production of steel coils?
- The production of steel coils faces several challenges. Firstly, one of the major challenges is ensuring consistent quality throughout the production process. Steel coils need to have uniform thickness, width, and flatness. Achieving this consistently can be challenging due to variations in raw materials, equipment, and operating conditions. Another challenge is managing the high temperatures involved in the production process. Steel coils are produced by heating steel slabs or billets to extremely high temperatures and then rolling them into coils. Maintaining the required temperatures and ensuring proper cooling can be a complex task, as any deviations can lead to inconsistencies in the final product. Furthermore, the production of steel coils requires a significant amount of energy. The steel industry is one of the largest energy consumers globally. Reducing energy consumption while maintaining production efficiency is a constant challenge. Implementing energy-efficient technologies and optimizing processes are necessary to address this challenge. Moreover, the production of steel coils generates a considerable amount of waste and emissions. Steel manufacturing involves various chemical reactions and releases pollutants such as carbon dioxide, sulfur dioxide, and particulate matter. Managing and minimizing these emissions to comply with environmental regulations is a significant challenge for the industry. Additionally, steel coils are often produced in large quantities, requiring efficient logistics and transportation systems. Ensuring timely delivery and minimizing damage during transportation can be a challenge due to the weight and size of the coils. Lastly, the steel industry faces market challenges, including fluctuating prices of raw materials, competition from other materials, and global economic conditions. Adapting to market demands and maintaining competitiveness is crucial for the sustainable production of steel coils. Overall, the challenges in the production of steel coils include maintaining consistent quality, managing high temperatures, reducing energy consumption and emissions, optimizing logistics and transportation, and adapting to market dynamics. Addressing these challenges requires continuous innovation, technological advancements, and a focus on sustainability.
- Q:How are steel coils tested for mechanical properties?
- Steel coils are tested for mechanical properties through various methods, including tensile testing, hardness testing, and impact testing. Tensile testing involves stretching the steel coil until it breaks to determine its strength, elasticity, and ductility. Hardness testing measures the resistance of the steel to indentation or scratching, indicating its overall toughness. Impact testing involves striking the coil with a pendulum to assess its ability to absorb energy without fracturing. These tests help evaluate the quality and performance of steel coils in different applications.
- Q:What are the standard dimensions and weights of steel coils?
- The specific type and grade of steel being used, as well as the manufacturing process and intended application, can cause variations in the standard dimensions and weights of steel coils. However, there are some common industry standards that can give a rough estimate of the dimensions and weights. In terms of dimensions, steel coils usually have a standard width that can range from 600mm to over 2000mm. The most commonly used widths are 1000mm, 1250mm, and 1500mm. The inner diameter of the coil, which is also known as the core or mandrel, is typically around 508mm (20 inches) or 610mm (24 inches). On the other hand, the outer diameter of the coil, which is known as the outside diameter or OD, can vary greatly depending on the thickness and width of the coil. However, it usually falls within the range of 1200mm to 2000mm. When it comes to weights, steel coils are measured by their gross weight, which includes the weight of the coil itself and the steel material it contains. The weight of a steel coil can vary from a few hundred kilograms to several tonnes, depending on the thickness and width. For example, a coil with a thickness of 0.5mm and a width of 1000mm may weigh approximately 5-6 tonnes, while a coil with a thickness of 3mm and a width of 1500mm can weigh around 20-25 tonnes. It's important to keep in mind that these dimensions and weights are general guidelines and may differ based on the specific requirements and standards of different industries and manufacturers. Therefore, it is advisable to refer to the relevant specifications or contact the manufacturer for accurate and up-to-date information regarding the dimensions and weights of steel coils.
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Prepainted Rolled steel coil for Construction Roofing use
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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