• Prepainted Aluminum Zinc Rolled Coil for Roof construction System 1
  • Prepainted Aluminum Zinc Rolled Coil for Roof construction System 2
Prepainted Aluminum Zinc Rolled Coil for Roof construction

Prepainted Aluminum Zinc Rolled Coil for Roof construction

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
30000 m.t./month

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Structure of Prepainted Aluminum Zinc Rolled Coil for Roof construction

 Prepainted Aluminum Zinc Rolled Coil for Roof construction

Description of Prepainted Aluminum Zinc Rolled Coil for Roof construction

Aluminum zinc coils 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 Aluminum Zinc Rolled Coil for Roof construction

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 Aluminum Zinc Rolled Coil for Roof construction

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.  

 

Prepainted Aluminum Zinc Rolled Coil for Roof construction Image

 

Prepainted Aluminum Zinc Rolled Coil for Roof construction

Prepainted Aluminum Zinc Rolled Coil for Roof construction

 

Specifications of Prepainted Aluminum Zinc Rolled Coil for Roof construction

Surface Treatment

Feature

Chemical Treatment

minimize the chance of humid-storage staining forms a dark gray surface discoloration on the surface

retain the bright metallic luster for a long period

Oil

minimize the tendency for humid-storage stain

Chemical Treatment and Oil

The chemical treatment provides very good protection against humid-storage staining, while the oil provides lubricity for operations.

Dry

must be transported and stored with special precautions to preserve low-humidity conditions.

Anti-finger print

minimize the chance of humid-storage staining forms a dark gray surface discoloration on the surface

 

FAQ of Prepainted Aluminum Zinc Rolled Coil for Roof construction

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: Why does steel with several composites have a greater hardenability from quenching than low carbon steel alloys?Any help would be great
Bit tricky to explain and I don't know muh about it but steel on its own has lost of gaps in it ( the molecular structure) and when carbon is added thos gaps are filled, I think of it like this: it is easier to punch through expanded polystyrene( with all the little balls) than unexpanded(just a lump of plastic) as the balls are not properly joined and have air pockets between them.
Q: Can steel coils be coated with anti-static materials?
Yes, steel coils can be coated with anti-static materials. Anti-static coatings are often used to reduce or eliminate static electricity buildup on surfaces, including steel coils. These coatings help to prevent the accumulation of dust, reduce the risk of electrical discharge and sparks, and ensure the safe handling and storage of steel coils in various industries.
Q: I'm writing a book, and there is a part where there is a death arena with a white-hot river of steel. How hot would that be?
White-hot steel is ~1200? C (2190 ?F) and above, though the exact temperature depends on the steel alloy used. To give you an idea of how hot this is: 5500? C surface temperature of the sun 1536? C Melting point of iron 1063? C Melting point of gold 660? C Melting point of aluminum 427? C Surface temperature of the sunward face of the planet Mercury 290? C Temperature of a commercial oven broiler
Q: it isn't a SIGG water bottle or any other brand, as it's from thingsengraved what I'm wondering is, is this just as good as a SIGG water bottle, or is there any difference?
Should be OK- that's reputable vendor. Suggest initial flush insides with very mild acid (fill ~20% with mild vinegar, Pepsi, etc., then shake 1 minute) then rinse 2 times, then look inside to confirm it looks clean.
Q: What are the different methods of stretch leveling steel coils?
There exists a variety of methods for stretch leveling steel coils, each possessing their own unique advantages and applications. 1. Roller Leveling: This method entails passing the steel coil through a sequence of rollers that apply pressure to stretch and flatten the material. It is a widely utilized technique for leveling steel coils and grants excellent control over the leveling process. Roller leveling proves suitable for thin and medium gauge steel coils. 2. Tension Leveling: In this approach, high tension forces are applied to the steel coil via a set of bridle rolls. The tension aids in elongating and flattening the material, resulting in a level and stress-free coil. Tension leveling proves particularly effective for thicker and harder steel coils. 3. Laser Leveling: Laser technology is harnessed in this method to assess and rectify any imperfections present in the steel coil. A laser scanner diligently scans the surface of the coil and detects variations, which are subsequently adjusted by a laser beam. Laser leveling provides exceptional precision and is suitable for leveling delicate and high-value steel coils. 4. Stretcher Leveling: This method involves exceeding the yield point of the steel coil, leading to permanent deformation and the elimination of residual stresses. Stretcher leveling is commonly employed for heavy gauge coils and is capable of achieving substantial improvements in flatness. 5. Tensionless Leveling: As the name implies, tensionless leveling is executed without the application of tension to the steel coil. Instead, hydraulic or pneumatic pressure is employed to stretch and flatten the material. This method is ideal for delicate or sensitive steel coils that may be susceptible to damage under high tension forces. Each method of stretch leveling steel coils possesses its own set of advantages, such as control, precision, or suitability for specific types of steel coils. The selection of the appropriate method relies on factors such as the thickness, hardness, and quality requirements of the steel coil, as well as the desired flatness and surface finish.
Q: How are steel coils inspected for quality assurance?
Quality assurance for steel coils involves a rigorous process that includes various tests and checks to ensure their quality. Initially, a visual inspection is carried out to identify surface defects like scratches, dents, or rust, ensuring the coils are in good condition and free from obvious flaws. Afterward, a dimensional inspection is performed to verify the coils' dimensions and tolerances. This involves measuring their width, thickness, and length to ensure they meet the specified requirements. Any deviations from the standard dimensions are noted and addressed. Moreover, mechanical testing is conducted to assess the strength and durability of the steel coils. Tensile tests are performed to measure their strength and elasticity, while impact tests evaluate their ability to withstand sudden loads or shocks. Furthermore, chemical analysis is undertaken to determine the composition and purity of the steel. Samples are taken from the coils and analyzed in a laboratory to check for impurities or elements that could affect the quality. To comply with industry standards, non-destructive testing methods like ultrasonic testing or magnetic particle inspection may be used. These methods can detect internal defects or irregularities that may not be visible to the naked eye. Additionally, surface treatment inspections, such as galvanization or coating checks, may be performed to ensure the protective layers are applied correctly and meet the necessary specifications. In summary, the quality assurance process for steel coils includes visual, dimensional, mechanical, chemical, and non-destructive testing methods. These thorough inspections guarantee that the steel coils meet the required quality standards and are suitable for their intended applications.
Q: Can steel coils be used in electrical applications?
Certainly, electrical applications can make use of steel coils. In the realm of electrical circuits, steel coils often serve as magnetic cores in transformers and inductors, which are indispensable components. The steel employed in these coils typically consists of high-quality electrical steel, possessing distinct magnetic attributes, including low core losses and high permeability. These attributes empower the steel coils to efficiently transmit electrical energy between various circuit components. Furthermore, steel coils can also find utility in other electrical applications, such as the construction of electric motors and generators. Taking everything into account, steel coils are extensively employed in electrical applications due to their magnetic properties and their capacity to handle high currents and temperatures.
Q: I was wondering whether anyone knew if painted steels rusts at the same speed as steel that isn't painted. Also, does steel rust quicker than aluminium?Thank you
Painted Steel
Q: How is the demand for steel coils influenced by the construction sector?
The construction sector heavily influences the demand for steel coils. These coils are essential in construction as they are used for various purposes such as structural framework, roofing, fencing, and reinforcement. There are several factors that drive the construction sector's demand for steel coils. Firstly, as the construction industry grows and expands, the need for steel coils increases to meet the rising demand for new infrastructure, commercial buildings, and residential properties. This includes the construction of bridges, highways, airports, office complexes, residential towers, and more. Secondly, the demand for steel coils in the construction sector is influenced by economic conditions. When the economy is performing well and there is increased investment in construction projects, the demand for steel coils tends to rise. Conversely, during economic downturns or recessions, the construction sector slows down, resulting in a decrease in demand for steel coils. Furthermore, changes in construction techniques and advancements in technology also impact the demand for steel coils. As new construction methods and materials are introduced, the use of steel coils may increase or decrease depending on their compatibility and effectiveness in these new applications. For example, the popularity of pre-engineered steel buildings has led to an increased demand for steel coils. Government policies and regulations also play a crucial role in shaping the demand for steel coils in the construction sector. Government initiatives promoting infrastructure development, sustainable construction practices, or energy-efficient buildings can significantly impact the demand for steel coils. For instance, incentives for green buildings may drive the use of steel coils in construction projects aiming for LEED certification. In conclusion, the demand for steel coils is tightly connected to the construction sector. Economic conditions, construction activity, technological advancements, and government policies all influence the demand for steel coils in the construction industry. Understanding these factors is crucial for steel manufacturers and suppliers to effectively meet the needs of the construction sector.
Q: How are steel coils processed for slitting or edge conditioning?
Steel coils are processed for slitting or edge conditioning through a series of steps. First, the coils are unwound and flattened using a decoiler. Then, they are fed through a slitting machine, which cuts the wide coil into smaller strips of the desired width. These strips are then recoiled to create narrower coils. For edge conditioning, the coils are passed through an edge trimmer, which removes any rough or uneven edges. Finally, the coils are recoiled again and packaged for further use or distribution.

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