Pre-painted Rolled 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: Hi, I live in the Boston area and I'm trying to find a steel suppler that can provide mild steel for hobby welding. I can go through my job, but we only put in orders every couple of months so it's not very convenient. Also, the few suppliers I've found only sell in bulk. So if anyone knows where I can angle irons, flat bars, sheets, etc... by the piece it would greatly appreciated. Thanks
- They will sell any quantity of metal and even cut it to size - my experience has been that their prices are not wildly out of line for single pieces of full length stock compared to buying singles where you have to buy a minimum. They also may have sizes that ordinary places consider odd. I was looking for 5/8 square 16 gauge and was told it would have to be shipped in from Houston (to Dallas) by my nearest supplier and found it in stock at MetalSM. But check if you get something odd - the 5/8 cost more than 3/4 at both places and MetalSM actually gave me 3/4 but took it back even though I had cut it. Also check the regular steel suppliers in your area as well as retail welders metal supply places.
- Q: Can steel coils be painted?
- Yes, steel coils can be painted. Painting steel coils is a common practice to enhance their appearance, protect them from corrosion, and provide additional durability. The coils are typically cleaned, prepped, and coated with a primer before applying the desired paint color.
- Q: How can I arbitrate quality of steel before purchasing it??
- The quality of the alloy can be very well be judged by its appearance and lustrous surface. The more luster on the surface the more refine will the steel be. To judge its tenacity and endurance, the alloy can be subjected to a series of procedures involving stress and shock. The reaction to these processes can determine whether the steel be fit for the purpose required.
- Q: Explain how you could make plastic sink and steel float?
- Plastics that are more dense than water will sink. For floating, you need to displace more water than you weight, so assuming steel is 10 times denser than water you will need to displace 10 times as much water weight as your steel occupies. This is easy for a wide hull ship (barge)
- Q: What are the dimensions of steel coils used in the agricultural structure industry?
- The dimensions of steel coils utilized in the agricultural structure sector may differ based on the particular application and requirements at hand. Nevertheless, standard dimensions for steel coils in this industry span from 0.5mm to 3mm in thickness and from 600mm to 1500mm in width. The length of the coils can also vary, but typically falls between 1000mm and 3000mm. These dimensions afford flexibility in constructing agricultural structures like barns, sheds, and storage facilities, all while ensuring ample strength and durability. It is worth noting that precise dimensions may vary depending on the manufacturer and the unique demands of the agricultural project.
- Q: How are steel coils used in the production of electrical devices?
- Steel coils are commonly used in the production of electrical devices as they serve as crucial components in transformers, motors, and generators. These coils are typically made from high-quality steel and are wound with copper wire to create an electromagnetic field. This field helps in the conversion, transmission, and regulation of electrical energy, making steel coils indispensable for the efficient operation of electrical devices.
- Q: What are the different types of steel coil storage methods?
- There are several different types of steel coil storage methods, including vertical stacking, horizontal stacking, coil cradles, and coil racks.
- Q: What is the maximum temperature steel coils can withstand?
- The specific grade and type of steel being used determine the maximum temperature that steel coils can tolerate. Steel possesses strong heat resistance and can generally endure temperatures ranging from 550°C to 1,100°C (1,022°F to 2,012°F), depending on the grade. Nevertheless, it is essential to acknowledge that extended exposure to high temperatures may compromise the structural integrity of the steel, leading to permanent deformation or failure. Hence, it is crucial to adhere to the manufacturer's guidelines and specifications when establishing the maximum temperature that steel coils can withstand for particular applications.
- Q: Explain your answers please. I was watching mythbusters and they bought a steel coffin over a wooden one because they thought it would hold more dirt. Now how come bridges that have been made of wood lasted way longer than steel bridges? Or rollercoasts for example.
- Back when I was in school we used to have a contest comparing balsa wood bridge designs. The idea was to build the strongest bridge when derated for bridge weight. The strength test was that the 2-ft long bridge was placed between two tables and a garbage can was strung up to the middle of it. Then it was slowly filled with water until the bridge snapped. The can was weighed and divided by the bridge weight to get our scores. I don't see why you couldn't do this to compare wood vs steel. You could find how much load is needed to snap sample rods. The important point is that the rods should be nearly identical in dimensions between the two materials-- this means length and diameter. Also if you're measuring steel, you'd want to choose a relatively thin diameter or a long span or you won't be able to even bend it. Also while I'm pretty sure wood will snap, steel might bend gradually, so you'd have to decide how much deformation you would allow before calling the piece failed. Also if you take this approach be sure to wear safety glasses when running it. In fact it would be a good idea to put a metal shroud around the test structure.
- Q: What are the different methods of skin pass rolling for steel coils?
- There are several methods of skin pass rolling for steel coils, each with its own unique characteristics and benefits. Some of the most common methods include: 1. Dry Skin Pass: In this method, the steel coil is passed through a set of rolls without the application of any lubricant or coolant. This helps to improve the surface finish of the steel by reducing the thickness variations and imparting a smoother texture. 2. Wet Skin Pass: This method involves the application of a water-based emulsion or coolant during the skin pass rolling process. The coolant helps to reduce 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 immersed in the solution, and an electric current is applied to the coil, resulting in controlled surface etching. This method is particularly effective in improving surface cleanliness and removing oxide scale. 4. Temper Mill Skin Pass: This method combines skin pass rolling with a tempering process. The steel coil is rolled through a series of rolls, followed by a heating and cooling process to achieve the desired mechanical properties and surface finish. This method is commonly used for high-strength and automotive-grade steel coils. 5. Tension Leveling: In this method, the steel coil is passed through a series of rolls under high tension. This elongates the steel and helps to reduce residual stresses and shape defects, resulting in improved flatness and dimensional stability. It is important to note that the choice of 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 has its own advantages and limitations, and manufacturers typically select the most appropriate method based on their specific requirements.
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Pre-painted Rolled 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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