Prepainted Rolled steel Coil for Construction Roofing constrution
- 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:How are steel coils processed for cutting to length or blanking?
- Steel coils are processed for cutting to length or blanking through a series of steps. First, the coils are uncoiled and straightened to remove any bends or twists. Then, they are fed through a machine that measures and marks the desired length or shape. Next, a cutting tool or die is used to precisely cut the steel into the required dimensions. Finally, the cut pieces are inspected for quality and packaged for shipment.
- Q:What are the common methods of packaging steel coils for transportation?
- There are several common methods of packaging steel coils for transportation. One widely used method is to use steel strapping or bands to secure the coils together. This method involves tightly wrapping the coils with steel bands and securing them with metal buckles or seals. The strapping helps to keep the coils in place and prevents them from shifting or rolling during transportation. Another common method is to use wooden pallets or skids to stack and transport the steel coils. The coils are placed on the pallets and secured with steel strapping or bands. This method provides stability and allows for easy handling and loading onto trucks or other transportation vehicles. Some steel coils are also packaged in wooden crates or boxes. These crates are typically made of strong and durable wood and are designed to protect the coils from external impacts or damage during transportation. The crates are often reinforced with steel bands or strapping to provide additional strength and stability. In addition to these methods, some steel coils are packaged in specialized containers or units. These containers are specifically designed to hold and secure steel coils for transportation. They often have built-in mechanisms or features that make loading and unloading the coils easier and safer. It is important to note that the specific method of packaging steel coils for transportation may vary depending on factors such as the size and weight of the coils, the mode of transportation, and any specific requirements or regulations in place.
- Q:Can steel coils be used in the production of aerospace components?
- Indeed, the utilization of steel coils is feasible for the manufacturing of aerospace components. Steel, being a robust and adaptable substance, possesses an outstanding ratio of strength to weight, rendering it appropriate for a multitude of purposes in the aerospace sector. The processing and manipulation of steel coils allow for the fulfillment of precise specifications, including the creation of intricate components, structural elements, and even utilization in aerospace engines. Moreover, the corrosion resistance characteristics and capability to endure extreme temperatures make steel a dependable selection for aerospace applications.
- Q:How are steel coils used in the manufacturing of roofing materials?
- Steel coils are used in the manufacturing of roofing materials by being processed and shaped into various forms such as sheets, shingles, or panels. These coils are typically coated with protective layers to enhance durability and resistance to corrosion. The coils are then cut, formed, and assembled to create the final roofing product, ensuring strength, reliability, and longevity for the roofs.
- Q:Is steel easier to weld?Which is more brittle/less flexible?
- You should not attempt to do any traditional welding of steel to aluminum as they can form a hard and brittle inter metallic compound known as iron aluminide. You would have to employ a process that did not melt either species. Cladding could be an option but you are kind of limited to flat products that are sandwiched together. There is also explosive which does almost the same thing as cladding. Friction stir welding might be possible but I cant vouch for that. The temperature does get pretty hot, so I am not sure what would happen. But any of these suggestions would take specialized equipment not available to the average user. For weight, Al is 2.7 g/cc and Iron is about 7.8 so it is about 3 times heavier for the same volume. How strong either of them are greatly depends on specific alloys and heat treatment. I think some of the strongest aluminum alloys have a yield strength of about 50,000 psi which would relate to a relatively weak steel. For steel, there are alloys that can have yield strengths in the hundreds of thousands psi.
- Q:I know that the steel is significantly harder than when air cooled, but why is the quenched steel harder?
- Quenching results in smaller grains than air cooled. This means more boundaries, which means harder steel.
- Q:I want to make an object out of stainless steel. Initially, I had planned to get it cut out of stainless steel sheet but several of the edges need to be rounded and I think it would be much cheaper to get it made of cast iron formed in a mold.Yet, it must be stainless steel. Can stainless steel be formed in a mold like iron can ... i.e. poured in liquid form into a mold and harden into shiny stainless steel?Would a regular foundry do this or do I need something special?Thanks.
- You have 2 options. Sand casting or investment casting. Stainless steel can be cast with either of these methods. In either case a model or pattern will have to be created. For sand casting the pattern is all that is needed to go to casting. For investment casting the pattern is used to make a wax casting, which is then coated with the investment. The wax is burned out and the metal is then poured into the cavity. If you are making just 1 or 2 pieces you can have waxes machined. This saves the intermediate step Depending on the size machining may still be your best option. Especially if you want just 1 part.
- Q:How are steel coils inspected for elongation?
- Steel coils are typically inspected for elongation by conducting a tensile test. A small sample is cut from the coil and subjected to tension until it breaks. The elongation is then calculated by measuring the increase in length of the sample at the point of fracture.
- Q:How are steel coils coated to prevent corrosion?
- Steel coils are coated to prevent corrosion through a process called galvanization. In this process, the steel coils are submerged in a bath of molten zinc, creating a protective zinc coating on the surface. This zinc coating acts as a barrier, preventing oxygen and moisture from coming into contact with the steel, thus inhibiting corrosion.
- Q:What are the dimensions of steel coils used in the power generation industry?
- The dimensions of steel coils used in the power generation industry vary depending on the specific application and requirements. However, common dimensions for steel coils used in this industry are typically in the range of 0.5 to 3.0 millimeters in thickness and 600 to 2000 millimeters in width. The length of the coil can vary, but it is often in the range of several hundred to several thousand meters.
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Prepainted Rolled steel Coil for Construction Roofing constrution
- 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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