• Prepainted Rolled Steel coil for construction Roofing Constrution System 1
  • Prepainted Rolled Steel coil for construction Roofing Constrution System 2
  • Prepainted Rolled Steel coil for construction Roofing Constrution System 3
Prepainted Rolled Steel coil for construction Roofing Constrution

Prepainted Rolled Steel coil for construction Roofing Constrution

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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

 Prepainted Rolled Steel coil for construction Roofing Constrution

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. 

Prepainted Rolled Steel coil for construction Roofing Constrution

Prepainted Rolled Steel coil for construction Roofing Constrution

Prepainted Rolled Steel coil for construction Roofing Constrution

 

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.  

Prepainted Rolled Steel coil for construction Roofing Constrution

 

  Prepainted Rolled Steel coil for construction Roofing Constrution

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 used in the manufacturing of automotive wheels?
Steel coils are used in the manufacturing of automotive wheels by being processed and shaped into the necessary components such as rims and spokes. These coils are cut, formed, and welded to create the desired wheel design, ensuring durability and strength for safe and reliable use on vehicles.
Q:does he use a nylon guitar or steel?
He's using a nylon guitar. The trick to know whether it is nylon or steel is by looking at the headstock. steel ones use the ones you see from a regular electric guitar. the nylon ones has two major holes on them I don't know why but that's based on what i have seen. One more thing is its bridge. the nylon ones do not use pin-like stoppers to prevent the strings from falling off unlike the steel-stringed guitars that use them.
Q:and is that different from the components of steel
Making steel is very energy intensive. Mining the raw ore requires a lot of machinery that uses fuel or electricity . Transporting the ore requires a lot of fuel. Refining not only uses a lot of electricity but coal is added to change the iron ore into steel.
Q:How are steel coils used in the production of storage tanks and silos?
Steel coils are an essential component in the production of storage tanks and silos due to their strength and durability. These coils are typically made from high-quality steel and are processed through various manufacturing techniques to attain the desired thickness and shape. In the production process, steel coils are first uncoiled and then cut into specific sizes and lengths to meet the requirements of the storage tank or silo design. The coils are then shaped into cylindrical sections, using bending and rolling machines, to create the main body of the tank or silo. Once the desired shape is achieved, the coils are welded together to form a continuous and secure seam. This welding process ensures that the tanks and silos are leak-proof and can withstand the pressure exerted by the stored materials. Furthermore, steel coils also play a crucial role in reinforcing the structure of storage tanks and silos. They are often used to create the roofs, bottoms, and other structural components of these storage units. The strength and resilience of steel make it ideal for withstanding the weight of the stored materials and any external forces that may be exerted on the tank or silo. Additionally, steel coils can be coated or treated with protective materials to enhance their resistance to corrosion and extend their lifespan. This is particularly important for storage tanks and silos that are used to store corrosive substances or are exposed to harsh environmental conditions. Overall, steel coils are a fundamental element in the production of storage tanks and silos, providing the necessary strength, durability, and structural integrity required for these storage units.
Q:What are the dimensions of steel coils used in the automotive industry?
Steel coils used in the automotive industry come in various dimensions, which are determined by the specific application and requirements. Normally, the thickness of these coils falls between 0.5mm and 3mm, while the width ranges from 500mm to 2000mm. The length of the coils is subject to variation, depending on the production process and customer specifications. Furthermore, the weight of the coils can range from a few hundred kilograms to several tons. It is worth mentioning that these dimensions serve as general guidelines and may differ based on the particular needs of the automotive manufacturer.
Q:How are steel coils used in the agricultural sector?
Various purposes in the agricultural sector call for the widespread use of steel coils. One primary utilization is seen in the construction of farm machinery and equipment. Tractors, plows, harvesters, and other heavy-duty machinery are frequently manufactured using steel coils. The exceptional strength and durability of steel make it an ideal material for such applications, as it can endure the challenging conditions of agricultural work. Furthermore, agricultural buildings and structures heavily rely on steel coils in their construction. Steel is renowned for its superior structural integrity, making it a popular choice for barns, storage units, and other agricultural facilities. Steel coils are frequently employed to establish the framework and support systems of these structures, providing stability and long-lasting durability. Moreover, irrigation systems also rely on steel coils in their production. Steel coils are often used to create the pipes and tubes used for water transportation in agricultural irrigation systems. Steel's resistance to corrosion and its ability to handle high-pressure flows make it an excellent choice for this particular application. To summarize, steel coils hold a critical role in the agricultural sector. Whether it be the construction of farm machinery and buildings or the development of irrigation systems, steel's strength and durability make it the preferred material in this industry.
Q:How are steel coils shaped into specific forms?
Steel coils are shaped into specific forms through a process called cold forming or cold rolling. This involves passing the steel coil through a series of rollers that gradually shape and form it into the desired shape, such as sheets, strips, or tubes. The precise dimensions and specifications of the final form are achieved by adjusting the pressure and alignment of the rollers.
Q:During fatigue testing of any material (especially for steels), why is strain-control mode preferred over stress control mode?
because metals, like steel, are ductile and will stretch before breaking. Straining the metal is stretching it, stressing the metal is applying a shearing force or bending until there is an actual metal failure. A sheet metal strap 1inch across and 24 gauge metal is commonly used to support metal ducting systems in construction. These have an average strain to failure weight load as high as 16,200 lbs. As reported by the smacna index, they will safely hold 6800 pounds. Of more interest is the screws used to hold the strap to the duct. While they are grade 3, fairly strong, they strain to 1400 pounds when properly installed, and are safely able to support 650 pounds, unless they are overtorqued (stripped) and this quickly drops to 400 pounds and 125 pounds...big difference.
Q:What are the common coil handling challenges?
Some common coil handling challenges include the difficulty in safely lifting and moving heavy coils, ensuring proper alignment and positioning during handling, preventing damage to the coils or surrounding equipment, and efficiently managing coil storage and retrieval.
Q:Can steel coils be coated with chemical-resistant materials?
Yes, steel coils can be coated with chemical-resistant materials. The use of chemical-resistant coatings helps protect the steel coils from corrosion and damage caused by exposure to various chemicals, acids, or solvents. These coatings create a barrier that prevents the chemicals from reaching the steel surface and ensure the durability and longevity of the coils in harsh chemical environments.

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