Prepainted Rolled steel Coil for construction Roofing Constrution
- 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:What are the different types of steel coil packaging methods?
- There are several types of steel coil packaging methods, including shrink wrapping, strapping, wooden crates, and steel or plastic bands.
- Q:What are the different types of steel coil surface treatments?
- There are several different types of steel coil surface treatments, including hot-dip galvanizing, electro-galvanizing, painting, and powder coating.
- Q:What are the common coil surface finish standards?
- The common coil surface finish standards include mill finish, brushed finish, mirror finish, and embossed finish.
- Q:could someone please explain to me in detail the functions of stainless steel wall ties?
- they tie the walls to the ceiling to keep it from being blow en off in a storm stainless steel wont rust and become weak
- Q:What are the different methods of annealing steel coils?
- Steel coils can be annealed using various methods, each with its own advantages and applications. Full annealing, process annealing, and spheroidize annealing are the main methods. The most common method is full annealing, wherein the steel coils are heated above their critical point (usually between 800 and 900 degrees Celsius or 1472 and 1652 degrees Fahrenheit) and then slowly cooled in a controlled manner. This process refines the grain structure of the steel, making it softer and more ductile. Full annealing is employed to relieve internal stresses, enhance machinability, and improve the overall mechanical properties of the steel. Process annealing, sometimes called subcritical annealing or stress relief annealing, is used to reduce the hardness and brittleness of steel coils. It involves heating the coils below their critical point (typically between 550 and 650 degrees Celsius or 1022 and 1202 degrees Fahrenheit) and then slowly cooling them. This method relieves internal stresses that may have developed during previous manufacturing processes like cold working or welding. Process annealing is commonly used to enhance the formability and toughness of steel coils. Spheroidize annealing is a specialized form of annealing that softens high carbon and alloy steels. It entails heating the steel coils slightly below their critical point (usually between 650 and 700 degrees Celsius or 1202 and 1292 degrees Fahrenheit) and holding them at that temperature for an extended period. This allows the carbides within the steel to transform into rounded or spheroidal shapes, thereby increasing machinability and ductility. Spheroidize annealing is frequently employed in the production of cutting tools, bearings, and other applications that require improved machinability. In addition to these main methods, there are variations and specialized techniques like recrystallization annealing, intercritical annealing, and solution annealing. Each method has specific parameters and temperature ranges. The choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and intended application of the steel coils.
- Q:For some reason, if you rub iron oxide or lodestone (both very crumbly, dark, mineral-like materials) into soft, unhardened steel, their particles actually get stuck into the surface of the steel (that is, darkening it). My question is, how does this work? How come iron oxide and lodestone can get stuck, and how come other materials (like silicone carbide, for example) do not?My second question is, are there any materials that can get stuck into steel, that is also blue in color, and how would I best obtain it?
- If you look at the surface of untreated steel even with a low power microscope you will see a surface that is far from smooth, there are pits and occlusions dotting the surface. Steel is not polished when you see it this way so the only treatment to the surface was the extrusion process or forming done on it by the presses. Iron oxide has a very small particle size and when pulverized into a powder it can easily fill the pits and voids in the steel surface coloring it.
- Q:i have a question on a test and the questions before it are about blast furnace, wrought iron and cast iron...question 16 is..What is Steel?i dont really get what im being asked.. there could be many answers, what answer are they looking for?
- steel is a mixture of two or more metal or a metal with non metal to obtain both properties of the indivudual components. carbon steel for example.
- Q:How are steel coils processed for edge trimming or slitting during processing?
- Steel coils are processed for edge trimming or slitting during processing by utilizing specialized machinery. The coils are unwound and fed into the machine, where the edges are trimmed off to achieve the desired width. For slitting, the coil is passed through multiple sets of circular blades that cut it into narrower strips. This process ensures precise dimensions and smooth edges, making the steel coils ready for further applications.
- Q:i want to know if i should buy a set of acrylic tapers or steel. they r close in cost so it's not a money factor i want to know which work better and if there is a downside to either. thanks!
- Steel is better. Acrylic is porous so isn't as suitable for piercing jewellery as steel. Steel can also slide through easier for some people, acrylic isn't quite as smooth. For tapers it doesn't make a huge deal of difference as they're only passing through your ear briefly, not being worn as jewellery, but if they're close in cost anyway then go for the steel. And the plugs you insert after putting the taper through should always be steel, titanium or glass until your stretch has healed.
- Q:Steel or stainless steel
- Steel often has impurities that can generate fumes, which cause a fever identical to smoke inhalation. You always need to be concerned about what you are breathing around hot metal.
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Prepainted Rolled steel Coil for construction Roofing Constrution
- 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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