ASTM Prepainted Rolled Steel Coil for Construction Roofing
- 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
You Might Also Like
Structure of ASTM Prepainted Rolled Steel Coil for Construction Roofing
Description of ASTM 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 ASTM 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 ASTM 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 | 25MT 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 color. And we could give more discount if you make big order like 1000 tons and more. Further more, the more appropriate payment term your can offer the better price we can provide.
2. How long can we receive the product after purchasing?
Usually within thirty working days after received 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 industrial compressors?
- Steel coils are used in the manufacturing of industrial compressors primarily for the construction of the compressor's casing and frame. The steel coils are shaped, cut, and welded to create the sturdy and durable structure that houses the compressor components. Additionally, the steel coils may also be used in the fabrication of other parts such as motor mounts or brackets, contributing to the overall reliability and stability of the compressor.
- Q: How do steel coils contribute to fire resistance in buildings?
- Steel coils contribute to fire resistance in buildings by providing structural integrity and stability. The use of steel coils in construction helps in preventing the collapse of buildings during a fire. Steel, being a non-combustible material, does not contribute to the spread of fire, allowing occupants more time to evacuate safely. Moreover, steel coils have high melting points, which means they can withstand intense heat for a longer duration before losing their strength. This property helps in slowing down the fire's progression and gives firefighters more time to control the blaze.
- Q: Can steel coils be customized in terms of size and shape?
- Yes, steel coils can be customized in terms of both size and shape to meet specific requirements and applications.
- Q: What are the common methods of joining steel coils?
- There are several common methods used for joining steel coils, depending on the specific application and desired outcome. 1. Butt welding: This is a commonly used method where the two ends of the steel coils are aligned and welded together. Butt welding can be done using various techniques such as gas welding, electric resistance welding, or laser welding. This results in a strong and continuous joint without any additional material. 2. Overlapping and stitching: In this method, one end of the steel coil is overlapped onto the other end, and then stitched together using mechanical fasteners like staples, nails, or screws. This technique is suitable for temporary or low-stress applications where disassembly may be required. 3. Mechanical coupling: Steel coils can also be joined using mechanical couplings. These couplings are typically designed to fit over the ends of the coils and securely hold them together. Mechanical couplings are commonly used in pipelines, where the joint needs to be leak-proof and withstand high pressure. 4. Adhesive bonding: Another method of joining steel coils is through the use of adhesives. This involves applying a suitable adhesive or bonding agent to the ends of the coils and then pressing them together. Adhesive bonding allows for a clean and aesthetically pleasing joint, but its strength may vary depending on the adhesive used. 5. Overlapping and welding: Similar to overlapping and stitching, this method involves overlapping the ends of the steel coils and then welding them together. However, instead of using mechanical fasteners, welding is used to create a stronger and more permanent joint. This method is commonly used in structural applications where high strength and durability are required. It is important to note that the choice of joining method depends on factors such as the type of steel, the application requirements, and the desired strength of the joint. Proper consideration should be given to ensure the selected method is suitable for the specific project.
- Q: How are steel coils used in the manufacturing of automotive springs?
- Steel coils are used in the manufacturing of automotive springs as they provide strength, durability, and flexibility required for suspension systems. The steel coils are shaped and formed into the desired spring shape, ensuring optimal performance and handling of the vehicle.
- Q: What are the different methods of levelling steel coils?
- There are several methods of leveling steel coils, including roller leveling, stretcher leveling, and temper leveling.
- Q: How are steel coils measured for thickness?
- Steel coils are measured for thickness using a variety of methods. One common method is using a micrometer, which is a precision measuring instrument that accurately determines the thickness of the coil. The micrometer is gently pressed against the surface of the coil and the measurement is taken. Another method involves using a thickness gauge, which is a handheld device that can quickly and accurately measure the thickness of the steel coil. The gauge is placed on the coil's surface and the thickness is displayed on a digital screen. In some cases, ultrasonic thickness testing is used to measure the thickness of steel coils. This method involves using ultrasonic waves that are emitted from a handheld device. The waves travel through the coil and bounce back to the device, providing an accurate measurement of the thickness. Regardless of the method used, it is important to ensure that the measurements are taken at multiple points across the coil to account for any variations in thickness. This ensures that accurate and reliable measurements are obtained.
- Q: mass of steel ball=66.80 gramsdiameter of steel ball=2.51 cm
- To calculate the density of any object you will always use the formula: Density = Mass / Volume (P=M/V). You have recorded the known values of the mass and the diameter of the ball (sphere), so we have everything needed to calculate the Density. Mass is 66.80g, but we shall need to use another formula to calculate the volume of the sphere. The formula to use is 4/3 X Pi X radius cubed. However, first of all we need to turn your measurement of the diameter of the steel sphere into the radius of the steel sphere (So that it can be substituted in place of the “radius” in the above formula). Simply half the diameter to find the radius. So 2.51 cm divided by 2 is 1.255 cm. Now insert the radius 1.255cm into the above formula. It would be read like this: 4/3 X 3.14159… X 1.255 ?cubed (OR 4/3 X 3.14159 X 1.255X1.255X1.255), = 8.2798. So, now we know that the sphere has a volume of 8.2798 cm cubed, we can use this number in place of the “V” in the density formula P=M/V, and we can also substitute in the Mass (66.80g). So now P=66.80 / 8.2798, which = 8.07g/cm cubed. Now we know that from your measurements, steel has a density of 8.07g/cm cubed! This is fairly close to the real life average density, which if I remember correctly is around 7.8 g/cm cubed. Just remember, though, that as steel is an alloy it’s density is not standard and varies due to carbon content etc. Anyway, I hope that helped you!
- Q: How are steel coils protected from humidity?
- Steel coils are typically protected from humidity through a process called galvanization, where a layer of zinc or another protective coating is applied to the surface of the steel. This coating acts as a barrier, preventing moisture from coming into direct contact with the steel and minimizing the risk of corrosion. Additionally, steel coils are often stored in dry, enclosed spaces or wrapped with moisture-resistant materials such as plastic or wax paper to further protect them from humidity.
- Q: What is the role of steel coils in the production of conveyors?
- Steel coils play a crucial role in the production of conveyors as they are used to create the framework or structure of the conveyor belts. The coils are formed into a continuous loop, which provides strength, durability, and flexibility to the conveyor belts. Additionally, the steel coils ensure smooth movement and support heavy loads, making them essential components in conveyor manufacturing.
Send your message to us
ASTM Prepainted Rolled Steel Coil for Construction Roofing
- 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
Similar products
Hot products
Hot Searches
Related keywords
