Pre-painted Rolled Coil for Roofing Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 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: hi to every one I need to konw moer about steel and iron industry (process) thank you in advance for your intresting
- Primary Steel Making first Iron ore Coke Lime stone are mined and then took to the steel plant and put in the top off a blast furnace and sinks down to the bottom off the blast furnace and turns into molten iron. Once this process has been done it is then transferred to a BOS (Basic Oxygen Steel Making) this is then poured from a ladle into the BOS and a Lance is inserted into the BOS and pure oxygen is blown into the BOS for about 30 min and turns into steel.
- Q: How are steel coils inspected for surface cleanliness after processing?
- Steel coils are inspected for surface cleanliness after processing through visual inspection methods, such as using bright lights and magnifiers to spot any visible contaminants or defects. Additionally, various non-destructive testing techniques, like ultrasonic testing or magnetic particle inspection, may be employed to detect any hidden surface irregularities or contaminants.
- Q: like building steel beams. i'm pretty sure with a sawzall.
- I am going to take a slightly different approach. Once the structural steel is manufactured and then brought to the fabricator, not much heat is applied to the steel. It is normally punched, sheared or whatever buy the use of a lot of heat on it is normally not allowed due to the change in the properties of the steel. Once in the field to be erected, the cutting or welding on it are held to absolute minimums and most of the time not allowed at all.
- Q: How do steel coils contribute to structural integrity in buildings?
- Steel coils contribute to structural integrity in buildings through their strength and durability. By using steel coils in the construction of beams, columns, and other load-bearing components, buildings can withstand heavy loads, resist deformation, and maintain their stability over time. The high tensile strength of steel coils allows for the creation of lightweight yet sturdy structures, ensuring the overall safety and longevity of the building. Additionally, steel coils offer excellent resistance to corrosion, fire, and extreme weather conditions, further enhancing the structural integrity of buildings.
- Q: is a 1962 steel penny worth anything?
- 1962 D Penny
- Q: I have hundreds of pounds of scrap steel... who purchases this steel and what is the price per pound etc. of this? Does someone pick it up or do I bring it somewhere?
- It okorder /
- Q: So today I was bored and was reading a shotgun shell box,the box was slug 12ga.I noticed it said not to be used in Damascus steel or twist barrel.It was to my understanding that Damascus steel is very strong and many stories came from what it could cut when used in a blade or sword.The little bit of info that i could find was that Damascus used earlier in the turn of the century on shotguns should not be fired unless special maintenance has been given and check out by gunsmith.So is Damascus not strong like i thought and not be able to handle higher pressure or why the reason for the warning?*
- Damascus steel is is great for blades, but does not have the strength to stand up to smokeless powder pressures.
- Q: What are the different methods of coil slitting for steel coils?
- There are several different methods of coil slitting for steel coils, each of which serves a specific purpose and is used in different industries. Here are some of the common methods: 1. Rotary shear slitting: This is the most widely used method for coil slitting. It involves using a set of rotating knives to cut the steel coil into smaller strips. The rotary shear slitting method is known for its high speed and accuracy, making it ideal for large-scale production. 2. Loop slitting: In this method, the steel coil is fed through a loop control system that maintains a constant tension. The coil is then cut into strips using a rotating knife. Loop slitting is commonly used for thinner gauge materials and is known for its ability to produce clean, burr-free edges. 3. Oscillating shear slitting: This method involves using a set of oscillating knives to cut the steel coil. The knives move back and forth in a rapid motion, creating a shearing effect that cuts through the coil. Oscillating shear slitting is often used for thicker gauge materials and can handle higher tensile strengths. 4. Crush cut slitting: Crush cut slitting is a method where the steel coil is cut by pressing a circular blade against the coil. The blade crushes the material, creating a cut. This method is commonly used for softer materials or when edge quality is not critical. 5. Slit edge rolling: Slit edge rolling is a method that involves rolling the edges of the steel coil after it has been slit. This process smooths out the edges and improves the overall appearance of the strips. Slit edge rolling is often used for applications that require a high-quality finish. 6. Laser slitting: Laser slitting is a newer method that uses a laser beam to cut through the steel coil. This method is precise and can handle a wide range of thicknesses. Laser slitting is commonly used for high-precision applications where edge quality is critical. These are just a few of the different methods of coil slitting for steel coils. The choice of method depends on factors such as the thickness and tensile strength of the material, the required edge quality, and the intended application of the slitted strips.
- Q: What is the average flatness tolerance for steel coils?
- The average flatness tolerance for steel coils can vary depending on the specific industry and application. However, a common industry standard for flatness tolerance in steel coils is typically around 0.25% to 0.5% of the coil width.
- Q: How are steel coils manufactured?
- Steel coils undergo a series of procedures that convert raw materials into the end product. The manufacturing journey commences with the extraction of iron ore, which is later smelted in a blast furnace to yield pig iron. The pig iron is then refined in a basic oxygen furnace to eliminate impurities and regulate the carbon content. Once the molten steel is acquired, it is continuously molded into substantial slabs or billets. These slabs are subsequently rolled into thinner sheets or strips through hot rolling. This process entails passing the steel through a sequence of high-pressure rollers that reduce its thickness and shape it to the desired dimensions. Simultaneously, the steel undergoes treatment to enhance its mechanical attributes, such as strength and hardness. Following hot rolling, the steel is pickled and cleansed to eliminate any scale or impurities on its surface. It is then cold rolled to further decrease its thickness and improve its surface finish. Cold rolling necessitates passing the steel through a set of rollers at room temperature, thus augmenting its strength and dimensional accuracy. To form steel coils, the cold-rolled steel is typically tightly wound into a large coil shape. This is accomplished by feeding the steel strip through a sequence of rollers that gradually spiral it. Subsequently, the coils are typically annealed to alleviate internal stresses and enhance the material's formability. Lastly, the steel coils are coated or treated, depending on their intended application. This may involve the application of a protective coating, such as zinc or paint, to enhance corrosion resistance, or the provision of a specific surface treatment to improve adhesion in subsequent processes. All in all, the manufacture of steel coils is a multifaceted procedure encompassing stages such as smelting, casting, hot rolling, cold rolling, coiling, and surface treatment. Each step contributes to the quality and properties of the final product, ensuring that steel coils fulfill the required specifications for diverse industrial applications.
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Pre-painted Rolled Coil for Roofing Constrution
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
OKorder Service Pledge
OKorder Financial Service
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