Prepainted Rolled steel Coil for Construction Roofing Use
- 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:I expect that I will be questioned about my knowledge in methoding for steel castings, in a interview. I dont know about it. Can someone explain me in simple language and give me some links, like how I can explain methoding for steel castings.....key points...help please...so that i will pass the interview as if I have experience in methoding....thanks
- It is very difficult to define Methoding of Steel castings by one sentence. Actually it encompasses the total casting process. Normally it would mean a) Pattern design i.e. what type of pattern it would be- wooden, metallic, split or full, loose or fitted on a match plate or any other, how will be the parting line. b) Design of the gating system. c) Design of risering i.e. numbers, size and location of risers. d) Design of molding process i.e. sand system to be used, mold box size. But to do justice to the above mentioned activities, you need to consider other parameters of the casting process such as chemical composition, solidification characteristics, pouring temperature, pouring time, knock out time etc. As I said Methoding of Steel castings means designing of the total casting process from inception to final product.
- Q:What are the main factors that affect the strength of steel coils?
- The main factors that affect the strength of steel coils are the composition of the steel, the manufacturing process, and the heat treatment applied.
- Q:Can steel coils be coated with anti-fingerprint materials?
- Yes, steel coils can be coated with anti-fingerprint materials. These coatings are designed to minimize fingerprint smudging and make the surface easier to clean, improving the appearance and functionality of the steel coils.
- Q:is red steel any good??????? not sure im really impressed but im not really into fighting games but it looks cool.... so whats your views guys???????anyone bored of smooth moves yet?anyone think the new sonic is bit cra ppy !!!!!!!!!!! darn them any new goooood games coming oput on the wii??
- Have you tried Zelda or Trauma Center? Those should give you a good ride for your money. If you have a few bucks lying around pick either of them up.
- Q:I understand that Stainless Steel is a low carbon steel having minimum 10.5% chromium content in it there r 60 different type of stainless steel. Kindly informa) Is this info correct?????b) Which stainless steel can get rusted or can have superficial rust????
- Stainless steel is a generic term for a whole range (there are more than 60 types) of Fe-Cr alloys. They all contain some amount of C and some alloys include a good number of other alloying elements. In almost all cases, the materials have corrosion resistance due the Cr atoms that are in solid solution with the Fe matrix. Under corrosive conditions, the Cr forms a thin tight coherent layer of Cr-oxide. This Cr oxide coating prevents further corrosion so long as it is not chemically or physically removed. If the SS has been subject to mechanical abrasion, the corrosion resistance can sometimes be restored by a light exposure to nitric acid which passivates the surface, restoring the Cr-oxide layer. The carbon content is an important factor in corrosion preformance but so is the heat treatment. Under the wrong conditions and in different environments, all SSs can rust. One of the most common corrosion problems is sensitization which occurs in the heat affect zone (HAZ) around welds. If the C content is high enough and the heat is high enough, the Cr atoms in solid solution form Cr-carbides and are no longer available to form a protective Cr-oxide. The corrosion resistance can be restored by appropriate heat treatment.
- Q:I'm analysing horse stirrups and would like to know the disadvantages to stainless steel? - thanks
- Stainless Steel has more advantages than disadvantages. But u asked for disadvantages so they r as follows i've given common disadvantages more can be found on Google. Disadvantages of Stainless Steel: Stainless steel tends to scratch and dent. Food, grease and fingerprints show very clearly on stainless steel, making frequent wiping and cleaning a necessity. High initial cost Difficult to fabricate, or in other words, it is not as malleable as other metals, say iron, and hence if not fabricated properly, results in costly re-work. Difficult to weld High cost of polishing etc. i.e. adding finishing touches for the market. there are advantages more than disadvantages. But u asked for disadvantages that's why i have given only disadvantages of stainless steel Hope what u want u got.
- Q:So we all know a 1000lb steel ball will sink in water, but if you were to leave the center of the ball hollow and fill with air, if the steel ball was big enough in diameter it should float correct? What size would the steel ball need to be to float?
- specific gravity of a steel is approximately 7.82 as compared to water. so, the hollow sphere(filled with air) is having volume more by 7.82 as compared to solid sphere, then the 1000 lb hollow steel ball float in the water (Why Do Ships Float? The Greek Mathematician and inventor Archimedes lived during the 3rd century BC. According to history he was in the bath one day when he discovered the principle of buoyancy which is the reason why huge Greek ships weighing thousands of pounds could float on water. He noticed that as he lowered himself into the bath, the water displaced by his body overflowed the sides and he realised that there was a relationship between his weight and the volume of water displaced. It is said that he ran naked into the street yelling heurEka which is where we get our word eureka! (I found it), Greek heurEka I have found, from heuriskein to find. The Buoyancy Principle: Archimedes continued to do more experiments and came up with a buoyancy principle, that a ship will float when the weight of the water it displaces equals the weight of the ship and anything will float if it is shaped to displace its own weight of water before it reaches the point where it will submerge. This is kind of a technical way of looking at it. A ship that is launched sinks into the sea until the weight of the water it displaces is equal to its own weight. As the ship is loaded, it sinks deeper, displacing more water, and so the magnitude of the buoyant force continuously matches the weight of the ship and its cargo.)
- Q:How are steel coils protected against moisture and humidity?
- Steel coils are typically protected against moisture and humidity through various methods such as applying a protective coating or wrapping the coils with moisture-resistant materials, such as plastic or wax paper. Additionally, storing the coils in a dry and controlled environment, such as a warehouse with proper ventilation, helps prevent moisture absorption.
- Q:What are the surface treatments for steel coils?
- There are several surface treatments available for steel coils, each serving a specific purpose and offering unique benefits. Some common surface treatments for steel coils include: 1. Hot-dip galvanizing: This process involves immersing the steel coil in a bath of molten zinc, resulting in a protective layer of zinc coating on the surface. Galvanizing provides excellent corrosion resistance, making the steel coil suitable for outdoor applications in harsh environments. 2. Electro-galvanizing: This method uses an electrolytic process to deposit a thin layer of zinc onto the steel coil's surface. Electro-galvanizing provides good corrosion resistance, but the coating is generally thinner compared to hot-dip galvanizing. 3. Pre-painting or pre-coating: Steel coils can be coated with paints or other coatings before being formed into final products. This surface treatment enhances the coil's aesthetic appeal while offering protection against corrosion, weathering, and other environmental factors. 4. Pickling and oiling: This surface treatment involves removing oxides and scale from the steel coil's surface by immersing it in an acid solution. After pickling, the coil is typically coated with oil to prevent rust formation during storage and transportation. 5. Phosphating: Phosphating is a chemical conversion coating process that forms a layer of phosphate on the steel coil's surface. This treatment improves the adhesion of subsequent coatings, such as paints or primers, while also providing some corrosion resistance. 6. Organic coatings: Steel coils can be coated with various organic materials, such as epoxy, polyester, or polyurethane, to enhance their corrosion resistance and aesthetic appearance. These coatings offer a wide range of colors, textures, and finishes, making them suitable for diverse applications. It is worth noting that the choice of surface treatment for steel coils depends on the intended application, environmental conditions, and desired appearance. Manufacturers and end-users must carefully consider these factors to select the most appropriate surface treatment for their specific needs.
- Q:What is the maximum width of steel coils?
- The maximum width of steel coils can vary depending on various factors such as the type of steel, manufacturing capabilities, and intended use. However, in general, steel coils typically have a maximum width of around 2,200 millimeters or 86.6 inches. This width is commonly used in the steel industry for standard-sized coils. It is important to note that specialized steel coils or custom manufacturing processes may allow for wider widths, but these would be less common and may require specific equipment or processes.
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Prepainted Rolled steel Coil for Construction Roofing Use
- 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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