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: I know that they have steel shot in smaller sized pellets....say, number 4 shot. I guess it's for waterfowl, etc.Do they make steel buckshot? If not, why not? Would the pellets be too heavy? Wouldn't they have excellent penetration ability?
- Steel shot is used for hunting migratory waterfoul. Since buckshot is inappropriate for waterfoul hunting , it is not manufactured. Steel is less dense than lead and for the purposes for which buckshot is appropriate, lead is permissable and is more efective. There is no need for steel buckshot.
- Q: Recently I bought Bleach's Grimmjow's replica sword from swordsswords and I was wondering how strong is 440 steel when used for a 21 inch blade? Can it cut effectively? Is it dangerous?
- 440 is stainless steel, and isn't designed for functional swords. Carbon steel blades are. I'd say that if you're looking for a functional sword, forget about this one. It's probably a wall-hanger. Most swords today are.
- Q: What are the common methods of forming steel coils?
- The common methods of forming steel coils include hot rolling, cold rolling, and strip casting.
- Q: How are steel coils inspected for oil or rust residues using chemical analysis?
- Steel coils can be inspected for oil or rust residues using chemical analysis techniques. One of the commonly used methods is Fourier transform infrared spectroscopy (FTIR). In this technique, a small sample of the steel coil is taken and subjected to infrared radiation. The infrared spectrum obtained is then analyzed to identify the presence of specific chemical bonds that are characteristic of oil or rust residues. For detecting oil residues, a common approach is to use the peak at around 2920 cm-1 in the FTIR spectrum, which corresponds to the C-H stretching vibration in hydrocarbon chains. If this peak is observed, it indicates the presence of oil residues on the steel coil. To identify rust residues, the FTIR spectrum is analyzed for the presence of characteristic peaks corresponding to iron oxide or hydroxide compounds. For example, the presence of a peak at around 560 cm-1 suggests the presence of iron oxide (FeO) or iron hydroxide (Fe(OH)3). In addition to FTIR analysis, other chemical analysis techniques can also be utilized, such as X-ray fluorescence spectroscopy (XRF) or energy-dispersive X-ray spectroscopy (EDX). These techniques can provide elemental composition information, allowing for the identification of specific elements associated with oil or rust residues, such as carbon or iron. Overall, the chemical analysis of steel coils for oil or rust residues provides a reliable and accurate method to ensure the quality and cleanliness of the coils before further processing or usage.
- Q: What is the thickness of a steel coil?
- The thickness of a steel coil can vary depending on the specific requirements and application. Typically, the thickness of a steel coil can range from a few millimeters to several centimeters.
- Q: I'm doing a commercial for chemistry and I need to know any kind of chemistry dealing with Callaway Big Bertha Irons. I know they are stainless steel but any more info would help out! Thank you! :)
- Stainless steel is a mixture of metals, each metal is included in order to make up for each others weaknesses. Each metal is included due to a property that is benificial in some way, for instance Chromium is included because it makes the stainless steel 'stainless'. In chemistry a mixture of metals, stainless steel, is called an alloy.
- Q: How are steel coils used in the production of steel tanks?
- Steel coils are an essential component in the production of steel tanks. These coils, which are typically made from high-quality steel, serve as the primary raw material for manufacturing steel tanks. The first step in the process is to unroll and flatten the steel coils, which are usually delivered in a coiled form from the steel mills. Once the coils are unrolled, they are then cut into specific lengths and widths, depending on the desired dimensions of the steel tank. These cut pieces are then molded and shaped into the different components of the tank, such as the cylindrical body, the top and bottom ends, and any additional fittings or accessories. The steel coils provide the necessary strength and durability to the tank, ensuring that it can withstand the rigors of its intended application. The quality of the steel used in the coils is crucial, as it determines the tank's resistance to corrosion, pressure, and external forces. Moreover, the use of steel coils allows for efficient and cost-effective production of steel tanks. The standardized nature of the coils ensures consistent quality and dimensions, resulting in a streamlined manufacturing process. The ability to cut the coils into precise lengths and widths also minimizes wastage and maximizes material utilization. Furthermore, steel coils offer flexibility in terms of design and customization. They can be easily formed and welded into complex shapes, allowing for the creation of tanks with varying sizes, capacities, and configurations. This versatility makes steel coils an ideal choice for producing tanks for diverse sectors, including industrial, commercial, and residential applications. In summary, steel coils play a crucial role in the production of steel tanks. They provide the necessary raw material for manufacturing various tank components, ensuring strength, durability, and customization. By utilizing steel coils, manufacturers can efficiently produce high-quality tanks that meet the specific requirements of different industries.
- Q: What are the different coating options for steel coils?
- There are several coating options available for steel coils, each serving different purposes and providing unique benefits. Some of the commonly used coating options for steel coils include: 1. Galvanized Coating: This coating involves immersing the steel coils in a bath of molten zinc, creating a layer of zinc on the surface. Galvanized coating provides excellent corrosion resistance and protects the steel from rusting. It is commonly used in applications where the steel coils are exposed to harsh environments or moisture. 2. Galvannealed Coating: This coating is a combination of galvanizing and annealing processes. The steel coils are first galvanized and then annealed to create a layer of zinc-iron alloy on the surface. Galvannealed coating offers enhanced paintability and weldability while providing good corrosion resistance. 3. Aluminum-Zinc Alloy Coating: Also known as Galvalume, this coating consists of an aluminum-zinc alloy applied to the steel coils. It provides excellent corrosion resistance and heat reflectivity, making it suitable for various applications, including roofing, siding, and automotive parts. 4. Organic Coatings: These coatings are typically applied as a top layer over a base coat of galvanized or galvannealed coating. Organic coatings can be in the form of paints, lacquers, or powder coatings. They provide additional protection against corrosion, UV rays, and abrasion, while also enhancing the aesthetics of the steel coils. 5. Chromate Conversion Coating: This coating is primarily used as a pre-treatment before applying organic coatings. It helps improve adhesion between the steel surface and the organic coating, ensuring better corrosion resistance. The choice of coating depends on various factors such as the intended application, environmental conditions, desired appearance, and budget. Manufacturers and end-users should carefully consider these factors to select the most suitable coating option for their specific requirements.
- Q: What does "steel roll number" mean?
- The coil numbers in the steel industry are generally applicable to rolled round steel bars. A coil of steel has a specified length and weight. Different rolls have different volumes
- Q: Can steel coils be stored in a humid environment?
- Steel coils can be stored in a humid environment, but it is not ideal. Humidity can cause steel coils to rust and corrode, leading to potential damage or degradation of the steel. It is recommended to store steel coils in a dry and well-ventilated area to protect them from the negative effects of humidity.
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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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