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: what is the difference between METAL and STEEL?
- Metal is the generic name for several pure chemical elements and they alloys that can be made from them. Steel is used to designate alloys that consist mainly of iron, with a limited proportion of carbon in them.
- Q: What are the different surface finishes for steel coils?
- The different surface finishes for steel coils include hot rolled, cold rolled, galvanized, coated, and brushed.
- Q: What are the common applications of steel coils in construction?
- Steel coils are commonly used in construction for a variety of applications such as roofing, wall cladding, structural beams, and framing components. They provide strength, durability, and versatility, making them ideal for supporting and reinforcing various structures and ensuring their stability and longevity.
- Q: which type of carbon steel does not have manganese
- None. Mn is a trace impurity in all steels, if you look carefully enough. If you want to find a steel where Mn is not intentionally added, start looking at the alloy composition specifications, there are hundreds of steels. Why are you worried about Mn? Mn is typically added to steels for a very good reason.
- Q: What is the standard thickness of steel coils?
- The standard thickness of steel coils can vary depending on the specific application and industry requirements. However, in general, steel coils are typically available in a range of thicknesses between 0.5mm to 10mm. The desired thickness of a steel coil is determined by factors such as the intended use, structural requirements, and manufacturing processes. Thicker steel coils are often used for heavy-duty applications that require greater strength and durability, while thinner coils are suitable for lighter applications where flexibility and weight reduction are important. It is important to consult industry standards and specific project requirements to determine the appropriate thickness for steel coils in any given application.
- Q: How are steel coils inspected for defects?
- Steel coils are inspected for defects using various methods to ensure that the quality of the product meets the required standards. One common method is visual inspection, where trained inspectors examine the surface of the coils for any visible defects such as cracks, scratches, or dents. This is usually done by visual observation or with the assistance of magnifying tools. Another method is magnetic particle inspection, which is used to detect surface and near-surface defects such as cracks or voids. In this process, a magnetic field is applied to the steel coil, and a magnetic powder is applied to the surface. If there are any defects, the magnetic powder will be attracted to them, making them visible to the inspector. Ultrasonic testing is also commonly used to inspect steel coils for defects. In this method, high-frequency sound waves are transmitted into the coil, and the reflected waves are analyzed. Any deviations in the sound waves can indicate the presence of defects such as cracks or voids within the coil. Additionally, eddy current testing is employed to detect defects in steel coils. This method uses electromagnetic induction to generate eddy currents within the coil. Any changes in these currents caused by defects in the material are detected and analyzed by the inspector. Lastly, some steel coils may undergo destructive testing, where a sample is taken from the coil and subjected to various tests such as tension or bend testing. These tests are performed to evaluate the mechanical properties of the steel, which can indirectly indicate the presence of defects. Overall, steel coils are inspected for defects through a combination of visual inspection, magnetic particle inspection, ultrasonic testing, eddy current testing, and potentially destructive testing. These methods ensure that any defects are identified and addressed, ensuring that only high-quality steel coils are delivered to customers.
- Q: What are the typical dimensions of a steel coil?
- The typical dimensions of a steel coil can vary depending on its specific application and industry. However, common dimensions for steel coils include a width ranging from 0.5 inches to 72 inches, and a thickness ranging from 0.010 inches to 0.625 inches. The inner diameter of the coil is usually between 16 inches and 24 inches, while the outer diameter can range from 48 inches to 72 inches.
- Q: How are steel coils used in the production of rail tracks?
- Steel coils are used in the production of rail tracks as they are processed and shaped into rails. These coils are transformed into long, straight sections of steel that form the main structure of the track. This process involves cutting, bending, and welding the coils to create the desired rail shape and dimensions. The resulting rails are then installed on rail beds to provide a durable and reliable foundation for trains to run on.
- Q: Can steel coils be stored in unheated warehouses?
- Yes, steel coils can be stored in unheated warehouses as long as proper precautions are taken to protect them from moisture, condensation, and extreme temperature fluctuations.
- Q: Why is it usually scorned by the shooting community to use steel cased ammo (like Wolf)? Always hear corrosive and steel is bad for the extractor/firing pin. Hulp a simpleton out!
- Here's a true life example: My Bushmaster AR15 extractor rips the lip/rim off the steel casing leaving the fired round jammed into the chamber. It takes a push rod to remove the casing. It happens pretty frequently, and I recently took half a brick of the junk and dropped it off at my local gun store on amnesty day. I've never had that issue with brass.
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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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