• 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 System 4
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 can I judge the quality of steel?
Various ways: Carry out mechanical testing on it to see how strong it is. eg. Tensile testing, hardness testing, impact testing. Examine a cleaned up sample on the steel under a microscope to see what the steel grain structure is like and what condition it is in (hardened etc.) Or the easiest way is to ask the supplier what it is and then find a specification sheet giving you all the above information.
Q: What we have to keep in mind before buying a steel building?
A steel storage garage?? Proper ground preparation---steady level ground--and lots of friends to help erect it.
Q: How are steel coils processed at the steel service centers?
Steel service centers process steel coils through a series of steps to transform them into finished products that meet the specific requirements of customers. The process typically begins when the steel coils arrive at the service center. These coils are usually large and heavy, and they may have been produced by a steel mill or imported from overseas. Upon arrival, the steel coils undergo a quality inspection to identify any defects and ensure that only high-quality coils are used in the production process. After inspection, the coils are stored in a warehouse until they are ready for processing. Next, the steel coils are uncoiled to create flat sheets of steel. This can be done manually or using automated machines, depending on the size and thickness of the coils. The uncoiled steel is then leveled to remove any residual stress and ensure a flat and consistent surface. Once leveled, the steel sheets go through various processes based on the desired end product. These processes may include cutting, shearing, slitting, and forming. Cutting and shearing involve shaping the steel sheets into specific sizes or shapes. Slitting involves cutting the steel into narrow strips, while forming involves bending or shaping the steel. After the desired processing operations are completed, the steel sheets are often treated with surface finishes to enhance their appearance or protect them from corrosion. These finishes may include painting, coating, or galvanizing. Finally, the processed steel sheets undergo another quality inspection to ensure they meet the required specifications. They are then packaged and prepared for shipment to customers in industries such as construction, automotive, or manufacturing. Overall, the processing of steel coils at steel service centers involves a combination of inspection, uncoiling, leveling, cutting/shearing/slitting/forming, surface finishing, quality control, and packaging. This process allows for the transformation of steel coils into finished products that are customized to meet the specific needs and requirements of customers.
Q: If needed for Defence could a stainless steel sword kill someone my buddy wanted this sword for Defece after it is sharpend here is a picture
Anything sharp can kill. The serious problem with stainless steel swords is that they're brittle, cheap and ONLY meant for display, and nothing more.
Q: What are the main factors that affect the formability of steel coils?
The main factors that affect the formability of steel coils are the composition and microstructure of the steel, the thickness and width of the coil, the temperature during forming, and the mechanical properties of the steel.
Q: should I shoot Herters .308 steel cased ammo in my Remington 7400.and why shouldn't I?
Should you?...... Its a free country - You can do what you want....... Why shouldn't you?...... If I got it right - That Herters ammo is foreign made steel case ammo..... Most of that stuff has a reputation for being dirty and likes to foul semi-auto rifles up..... I suppose if you use a little of that stuff now and then it would be ok........ Usually that steel cased stuff is used by folks that own military style semi-0auto guns and bolt action rifles...... Those types of guns for the most part are well suited to use that cheap steel case...... A Remington 7400?..... This is just my opinion - but that's a hunting rifle and isn't up to the rigors of blasting a few hundred rounds of ammo off in an afternoon....... Get a different gun for that...... Occasional use?... Yeah its alright...... If this is for hunting use a better grade of brass cased ammo.......
Q: Can we construct a barn using steel and will it be a durable one?
Steel barns in the USA is the going fad; they are both strong and economical; and some companies offer DIY kits
Q: What are the different types of steel coil packaging systems?
There are several types of steel coil packaging systems available, including horizontal coil packaging machines, vertical coil packaging machines, and coil wrapping machines. Each system is designed to securely package steel coils for transportation and storage, ensuring their protection from damage and corrosion.
Q: Can steel coils be stretched?
No, steel coils cannot be stretched as steel is a rigid material and does not have the ability to be stretched like other elastic materials.
Q: What are the common welding methods used for steel coils?
There are several common welding methods used for steel coils, depending on the specific requirements and applications. Some of the most widely used methods include: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, SMAW uses an electrode coated in flux to create an arc between the electrode and the base metal. This method is commonly used for its simplicity and versatility, making it suitable for a wide range of steel coil welding applications. 2. Gas Metal Arc Welding (GMAW): Also known as MIG (Metal Inert Gas) welding, GMAW uses a continuous wire electrode and a shielding gas to protect the weld pool from atmospheric contamination. This method is favored for its high welding speed and excellent control over the welding process. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW uses a continuously fed tubular electrode filled with flux to protect the weld pool. This method is often preferred for its high deposition rates and ability to weld thicker steel coils, making it ideal for heavy-duty applications. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG (Tungsten Inert Gas) welding, GTAW uses a non-consumable tungsten electrode and an inert gas shield to protect the weld pool. This method is commonly used for its precise control, high-quality welds, and ability to weld thin materials. 5. Submerged Arc Welding (SAW): SAW involves the formation of an arc between a continuously fed wire electrode and the steel coil, while a granular flux covers the arc and weld area. This method is frequently used for its high productivity and ability to weld thick materials. Each of these welding methods has its own advantages and limitations, and the choice of method depends on factors such as the thickness of the steel coil, desired welding speed, weld quality, and application requirements.

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