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 coatings?
- There are several different types of steel coil coatings, including galvanized, galvalume, pre-painted, and organic coatings.
- Q:Are steel coils used in the oil and gas industry?
- Yes, steel coils are commonly used in the oil and gas industry for various applications. They are utilized in the manufacturing of pipelines, storage tanks, and other equipment due to their strength, durability, and resistance to corrosion. Steel coils are also employed in the construction of offshore platforms and drilling rigs, where they provide structural support and ensure the safety and reliability of the infrastructure.
- Q:I'm wondering if steel casings are bad for a 1911. I know that an AK-47 will eat up steel casings all day long, but steel casings are bad for, and can be hard on an AR-15. I only have brass for my AR and that will never change. I'm curious as to how a 1911 fairs with steel casings. Is it bad for the gun or does it not matter? I'm asking because steel cased rounds seem to be the only readily available ammo these days. Thanks
- This better placed in the hunting section of sports. That is the area for gun questions. I've never used that Russian stuff in my guns. I would stick with brass or Aluminum Blaser ammo.
- Q:i have a pocket knife that is stainless steel that my mom found in the parking lot and i am wondering if oxygen peroxide will rust it? and if it dose is there something else i can use to get rid of the rust?
- Stainless does rust over time (EVERYTHING rusts it's called oxidation) Whenever something comes in contact with oxygen, the molecules will bond with the oxygen to form an oxide. Iron form iron oxide or rust which is reddish brown, apples turn brown after several minutes after it's been bitten. It all depends on the type of material used to manufacture the stainless. Stainless is made up of .2%-2% carbon, 11%%-28.5% chromium and iron. Some stainless is further advanced by adding other metals like nickel, molybdenum or niobium. Most stainless pocket knives are either normal steel coated with stainless or a cheaper form of stainless (it will have a high 300 number or very low 400 stamped on it). Other time, stainless will rust when a form of iron scratches the surface and contaminates the stainless, this is easily treatable if you get it quickly. Oxygen peroxide should not rust it, since the oxygen has already bonded with each other to form peroxide (2 oxygen molecules). It's the simplest form, but not the most stable (which means it could make your knife rust further). But I recommend steel wool or a scratch pad used to clean cook where (usually green or brown) to remove the rust.
- Q:Is there any other way of testing whether or not you have a 1944 Steel penny that won't damage the penny. The magnet test doesn't seem to work cause even when I try to get a 2007 penny to stick to the magnet...it won't. So is there some kind of magnet needed? Like power wise or anything like that, if not then I need to know what are other ways of testing the 1944 penny.
- 1944 Steel Penny
- Q:How are steel coils annealed for improved properties?
- Steel coils are annealed for improved properties through a process called annealing. This involves heating the steel coils to a specific temperature and then slowly cooling them to relieve internal stresses and create a more uniform and refined grain structure. This annealing process helps improve the steel's ductility, hardness, and overall strength, making it more suitable for various applications.
- Q:How do steel coils contribute to the manufacturing of HVAC systems?
- Steel coils play a crucial role in the manufacturing of HVAC systems. These coils are typically made from high-quality steel, which offers exceptional strength, durability, and heat resistance. One of the main uses of steel coils in HVAC systems is for heat exchangers. Heat exchangers are vital components that facilitate the transfer of heat between two different mediums, usually air and a refrigerant. In an HVAC system, steel coils are used in both the evaporator and condenser coils. The evaporator coil absorbs heat from the air inside a building, while the condenser coil releases heat to the outside environment. These coils are designed with numerous tubes that are coiled and connected with fins. The steel construction of these coils ensures that they can withstand high-pressure environments and resist corrosion, ensuring long-term reliability and efficiency of the HVAC system. Steel coils also contribute to the overall structural integrity of HVAC systems. They are commonly used in the fabrication of ductwork, which is responsible for distributing conditioned air throughout a building. The strength and rigidity of steel coils allow ductwork to maintain its shape and structural integrity under various conditions, including high air pressure and temperature fluctuations. Furthermore, steel coils are often used in the fabrication of HVAC system cabinets and enclosures. These cabinets house various components of the system, such as compressors, fans, and control panels. The robustness of steel coils ensures that the cabinets can withstand external forces, protect the internal components, and provide a secure housing for the entire HVAC system. In summary, steel coils are essential components in the manufacturing of HVAC systems. Their strength, durability, and heat resistance make them ideal for heat exchangers, ductwork, cabinets, and enclosures. By utilizing steel coils, HVAC manufacturers can produce systems that efficiently and effectively regulate temperature, improve indoor air quality, and provide comfort in various residential, commercial, and industrial settings.
- Q:Why do we galvanise steel? Galvanised steel is steel coated with zinc.
- We galvanize steel to protect and prevent steel from rusting or corrosion. Rusting, for the most part is a layman's term that has been used exclusively to describe the chemical OXIDATION reaction of steel or iron with oxygen forming a reddish brown substance called rust. Zinc metal coating also oxidizes but does not form the reddish brown rust. Instead, it forms an oxide, just like the rust, which is iron oxide. The protection created by zinc is because it is more reactive to oxidizers, than steel or iron. Thus, the oxidizer will react with Zinc first before it will react with Iron, hence protecting iron. If the zinc is fully reacted then iron is next. BUT, the zinc oxide formed on the surface of the steel or iron is no longer reactive to oxygen and also creates a good physical barrier so that oxygen will not have chance to even have contact with the underlying steel. Isn't that neat! Here is chemistry at one of its useful best.
- Q:What is the difference between hot-rolled and cold-rolled steel coils?
- Hot-rolled steel coils are produced at high temperatures, resulting in a rough surface and less precise dimensions. Cold-rolled steel coils, on the other hand, are processed at lower temperatures, leading to a smoother surface and more accurate dimensions.
- Q:Can steel coils be embossed?
- Yes, steel coils can be embossed. Embossing is a process that involves creating raised or indented patterns on a surface, and it can be done on various materials including steel coils. This technique is often used to enhance the aesthetic appeal or provide functional properties to the steel coils.
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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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