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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OKorder Financial Service
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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: How many percent carbon in low alloy steel and high alloy steel
- Steel is basically an alloy of iron and carbon that has more than 0% carbon and less than 2% carbon. The alloy of carbon and iron with more than 2% carbon is considered cast iron. The bessemer process converts cast iron to steel by injecting oxygen into molter cast iron to burn off the excess carbon. Steel is also modified by adding additional elements like silicon, molydenum, vanadium, chrome, etc.
- Q: That's my question, well that and:Steel Pick + Electric Guitar = Trashed Guitar?:D
- Uh. . . your guitar would be okay. . . except your strings wouldn't last long then nylon strings.
- Q: can anyone help me to find any webpage about lists/types of stainless steel?
- Types of stainless steel There are over 150 grades of stainless steel, of which fifteen are most common. The AISI (American Iron and Steel Institute) defines the following grades among others: - 200 Series—austenitic iron-chromium-nickel-manganese alloys - 300 Series—austenitic iron-chromium-nickel alloys Type 301—highly ductile, for formed products. Also hardens rapidly during mechanical working. Type 303—free machining version of 304 via addition of sulfur Type 304—the most common; the classic 18/8 stainless steel Type 316—Alloy addition of molybdenum to prevent specific forms of corrosion - 400 Series—ferritic and martensitic alloys.
- Q: What are the common challenges in steel coil manufacturing?
- Some common challenges in steel coil manufacturing include maintaining consistent quality, managing the weight and size of coils, ensuring proper surface finish, minimizing defects such as dents or scratches, preventing coil damage during handling or transportation, and optimizing production efficiency to meet customer demands.
- Q: What are the different methods of shearing steel coils?
- There are several methods used for shearing steel coils, including rotary shearing, slitting, and laser cutting. Rotary shearing involves the use of rotating blades to cut the coil into smaller sections. Slitting involves passing the coil through a set of circular blades that make multiple cuts parallel to the coil's width. Laser cutting, on the other hand, uses a high-powered laser beam to precisely cut through the steel coil. Each method has its advantages and is chosen based on factors such as the desired accuracy, speed, and type of steel being cut.
- Q: I want to buy a VERY sturdy bunkbed, but don't know which one would be better with not getting loose or falling apart.
- Metal, the screws can loosen, but most of the joints in a metal bed are welded, and screws that work loose are easy to tighten, once a screw or glued joint comes loose in a wood bed it will never be the same. The metal bunkbed my daughter had only needed screws to keep the upper safety rail from wobbling, but without any screws it would still stay together.
- Q: What are the different types of steel coatings for coils?
- Coils can be coated with various types of steel coatings, each with its own unique properties and advantages. Some of the most commonly used coatings include: 1. Galvanized Coating: This type of steel coating is widely utilized for coils. It involves applying a layer of zinc to the steel, which provides excellent protection against rust and corrosion. It is particularly suitable for outdoor applications or environments with high moisture levels. 2. Galvannealed Coating: Galvannealed steel coating involves subjecting the galvanized steel to additional heat treatment, resulting in a matte finish and improved adhesion for paint. It offers enhanced corrosion resistance and is often preferred in the automotive and construction sectors. 3. Aluminized Coating: Coating steel coils with aluminum provides outstanding heat resistance and corrosion protection. Aluminized steel is commonly employed in exhaust systems and other applications involving high temperatures. 4. Organic Coatings: Steel coils can also be coated with organic materials like paints or powder coatings. These coatings offer additional protection against corrosion and can be customized to meet specific aesthetic requirements, available in a wide range of colors. 5. Tin Coating: Tin-plated steel coils are covered with a layer of tin, which provides excellent solderability and resistance to corrosion. This type of coating is frequently used in the production of cans and other food packaging materials. 6. Phosphate Coating: Phosphate coatings are often applied as a pre-treatment before other coatings to enhance adhesion and corrosion resistance. They create a thin, crystalline layer on the steel surface, facilitating better adhesion of paint or powder coatings. These examples illustrate the diversity of steel coatings available for coils. The choice of coating depends on specific application requirements, considering factors such as corrosion resistance, heat resistance, paint adhesion, and aesthetic preferences.
- Q: What are the different methods of coil recoiling for steel coils?
- Steel coils can undergo coil recoiling using various methods, each with its own advantages and applications. Some commonly used methods include: 1. Slitting and rewinding: This method entails cutting the wide steel coil into narrower strips, which are then rewound into smaller coils. Circular blade slitting machines are typically employed for steel cutting, while the rewinding process ensures tight and uniform winding of the narrower strips. Industries like automotive, construction, and packaging widely employ this method. 2. Rewinding with tension control: This method involves unwinding and rewinding the steel coil using tension control systems. These systems maintain consistent tension throughout the recoiling process, resulting in uniform winding quality. This method proves beneficial when handling delicate or sensitive materials that require gentle treatment. 3. Recoiling with edge trimming: In situations where steel coil edges are damaged, uneven, or flawed, edge trimming can be combined with the recoiling process. Edge trimming machines remove defective sections, ensuring coils with smooth and even edges. 4. Recoiling with surface treatment: Steel coils often undergo surface treatment processes like oiling, coating, or galvanizing to enhance corrosion resistance or improve surface properties. Recoiling can be performed alongside these treatments, guaranteeing proper application and uniform coverage across the entire coil surface. 5. Recoiling with tension leveling: Tension leveling is a process that eliminates coil shape defects, such as coil set or crossbow, by applying tension during recoiling. This method ensures a flat and even coil shape, which is advantageous for subsequent processing and manufacturing operations. 6. Recoiling with precision slitting: Precision slitting is a specialized method used to achieve extremely narrow strip widths or tight tolerances in the steel coil. It involves precise control of slitting knives and winding tension to ensure accurate and consistent strip dimensions. Industries requiring high precision, such as electronics or precision engineering, commonly employ this method. In summary, the choice of coil recoiling method depends on factors such as desired coil dimensions, material characteristics, surface requirements, and the specific industry or application. Manufacturers often combine multiple methods to meet the diverse needs of their customers.
- Q: How are steel coils used in the manufacturing of safety systems?
- Steel coils are commonly used in the manufacturing of safety systems such as airbags and seat belts. The steel coils are formed into springs which provide the necessary tension and force to ensure the proper functioning of these safety devices. The coils are carefully designed and integrated into the system to enhance its performance and reliability, ultimately helping to protect occupants in the event of a collision.
- Q: What are the different methods of coil edge trimming?
- There are several methods of coil edge trimming that are commonly used in various industries. These methods include: 1. Shearing: This method involves using a shear blade to cut the edges of the coil. Shearing is a common method used for cutting thick coils and can be done manually or with the help of a machine. It provides a clean and straight cut but may not be suitable for thin or delicate materials. 2. Slitting: Slitting is a process in which the coil is passed through slitter knives that make multiple cuts along the edge to create narrower strips. This method is commonly used for producing narrow coils or strips of various widths. Slitting can be done in-line with a coil processing line or as a separate standalone process. 3. Laser cutting: Laser cutting is a precise method of coil edge trimming that uses a high-powered laser beam to cut through the material. It offers high accuracy and flexibility to cut complex shapes or patterns. Laser cutting is commonly used for thin or delicate materials, as it minimizes the risk of deformation or damage caused by other cutting methods. 4. Plasma cutting: Plasma cutting is a thermal cutting process that uses a plasma torch to cut through the coil. It is suitable for cutting a wide range of materials, including thick coils. Plasma cutting is known for its high cutting speed and ability to cut through materials with high melting points, such as stainless steel or aluminum. 5. Waterjet cutting: Waterjet cutting is a method that uses a high-pressure jet of water mixed with an abrasive material to cut through the coil. It is a versatile method that can cut a wide range of materials and thicknesses. Waterjet cutting provides a smooth and precise cut without heat-affected zones, making it suitable for sensitive materials. 6. Guillotine cutting: Guillotine cutting involves using a guillotine-style blade to cut through the coil. It is a quick and efficient method that provides a straight cut. Guillotine cutting is commonly used for cutting coils of various thicknesses and is often performed with the help of a machine for higher precision. Each method of coil edge trimming has its own advantages and considerations depending on the specific requirements of the application. The choice of method usually depends on factors such as material properties, thickness, desired cutting accuracy, production volume, and budget constraints.
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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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