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:What are the common methods of handling steel coils during production?
- The common methods of handling steel coils during production include using overhead cranes, forklifts, and coil tongs. These tools are utilized to lift, transport, and position the coils within the production facility. Additionally, coil cars and transfer systems are often used to move the coils between different stages of the production process. It is crucial to handle the steel coils with care to prevent damage and ensure efficiency in the production line.
- Q:What are the common thickness tolerances for steel coils?
- The common thickness tolerances for steel coils usually range from +/- 0.001 to +/- 0.005 inches, depending on the specific industry standards and customer requirements.
- Q:What are the different methods of cutting edge trimming for steel coils?
- There are several different methods of cutting edge trimming for steel coils, each with its own advantages and applications. Some of the most commonly used methods include: 1. Shearing: Shearing is a widely used method that involves cutting the edge of the steel coil using a pair of sharp blades. This method is relatively quick and efficient, making it suitable for high-volume production. However, shearing may result in some distortion or burrs along the cut edge. 2. Slitting: Slitting is a process where the steel coil is passed through a set of rotating circular blades that cut the coil into narrower strips. This method is commonly used when precise width control is required, such as in the production of narrow strips or slitting coils into multiple widths. 3. Laser cutting: Laser cutting is a highly precise method that uses a laser beam to cut through the steel coil. This method offers the advantage of producing clean and precise cuts without any distortion or burrs. Laser cutting is often used for complex or intricate shapes that require high accuracy. 4. Plasma cutting: Plasma cutting involves using a jet of ionized gas to cut through the steel coil. This method is particularly suitable for cutting thicker materials or for applications where high cutting speeds are required. Plasma cutting can produce clean and smooth cuts, although the edge may have a slight bevel. 5. Waterjet cutting: Waterjet cutting utilizes a high-pressure jet of water mixed with an abrasive material to cut through the steel coil. This method is highly versatile and can cut through a wide range of materials and thicknesses. Waterjet cutting is known for its ability to produce precise cuts without any heat-affected zone. 6. Sawing: Sawing is a traditional method that involves using a rotating saw blade to cut through the steel coil. This method is commonly used for thicker materials or when a rougher cut is acceptable. Sawing can be performed manually or using automated sawing machines. Each of these methods has its own advantages and considerations, and the choice of method depends on factors such as the required accuracy, production volume, material thickness, and desired edge quality.
- Q:What is the role of steel coils in the production of storage shelves?
- Steel coils are used in the production of storage shelves to provide strength and durability. The coils are processed and shaped into various components of the shelf, such as the frame, shelves, and brackets. This ensures that the shelves are able to withstand heavy loads and maintain their structural integrity over time. Steel coils also offer corrosion resistance, making them suitable for use in storage environments.
- Q:If you were selecting a tool steel for an extreme impact load application, which one would you pick? why?thanks
- It all depends what the application actually is. For hammers I would select a hammer grade B1 steel. For impact loading where an edge is needed I would be going for O1 or similar (oil quenching steels tend to be a little tougher than air hardening). For mining tools a very high manganese steel (Hadfields steel) - this is not a true tool steel. The best place to start is by looking at the ranking of the properties which you want - hardness v toughness v strength - and then use this to put the steels in rank order. Price and availablity then sort the problem out for you (in the real world).
- Q:Can anyone tell me what that means. I have seen it on knife blades an such. I am assuming it's a formula for the strength of the metal. who does that scale work, and please keep it simple.
- 440 is an AISI (American Iron and Steel Institute) material specification. It specifies the precise quantities of carbon and other elements present in the alloy. Here are the constituents of AISI 440 steel: Carbon - 0.6 to 0.75% Chromium - 16 to 18% Manganese - less than 1% Molybdenum - less than 0.75% Phosphorus - less than 0.04% Silicon - less than 1% Sulfur - less than 0.03% Iron makes up the remainder. AISI 440 is a heat-treatable, precipitation-hardening stainless steel.
- Q:How are steel coils used in the production of steel springs?
- Steel coils are used in the production of steel springs as they are rolled into a specific shape and size, providing the necessary strength and flexibility required for springs. These coils are then cut and formed into the desired spring shape, allowing them to store and release energy efficiently.
- Q:How are steel coils processed for slitting or edge trimming?
- Steel coils are processed for slitting or edge trimming by first being unwound from the coil and passed through a series of rollers to ensure a smooth and uniform surface. The coil is then cut into narrower strips using a slitting machine or trimmed along the edges to remove any imperfections or excess material. This process helps create precise and customized steel strips that can be used for various applications.
- Q:...particularly for jewelry?
- Surgical steel can be stainless these days, but it used to refer to a particular hardness of steel that was so tempered that it could be made to hold a very sharp edge for a prolonged period of time.
- Q:What are the dimensions of steel coils used in the railway equipment industry?
- The dimensions of steel coils used in the railway equipment industry can vary depending on the specific application and requirements. However, common dimensions for railway steel coils typically range in thickness from 1.5mm to 25mm and in width from 600mm to 2000mm. The inner diameter of the coil is typically around 508mm, while the outer diameter can range from approximately 900mm to 2000mm.
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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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