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 is the average tensile strength of a steel coil?
- The average tensile strength of a steel coil can vary depending on the specific grade and type of steel used. However, on average, steel coils typically have a tensile strength ranging from 300 to 2,500 megapascals (MPa).
- Q: How are steel coils priced and traded in the market?
- Steel coils in the market are priced and traded based on a variety of factors. The primary determinant is the current dynamics of supply and demand in the steel industry. When demand for steel coils is high, prices tend to increase, and vice versa. The cost of raw materials, such as iron ore and coal, is another crucial factor in determining the price of steel coils. Fluctuations in the prices of these materials can directly impact the pricing of steel coils. Furthermore, the price of steel coils is influenced by their quality and specifications. Coils with desirable characteristics, such as strength, corrosion resistance, or surface finish, may command a higher price in the market. Steel coils are traded through different platforms, including physical exchanges, futures contracts, and over-the-counter (OTC) markets. Physical exchanges allow buyers and sellers to trade steel coils by exchanging physical deliveries. Futures contracts, on the other hand, enable traders to buy or sell steel coils at a predetermined price and future date, providing a way to hedge against price fluctuations. The OTC market provides an alternative avenue for trading steel coils, where buyers and sellers negotiate and agree on prices directly without involving a formal exchange. This allows for flexibility and customization in trading, catering to specific requirements. In conclusion, the pricing and trading of steel coils in the market are influenced by factors such as demand and supply dynamics, raw material costs, quality specifications, and the availability of different trading platforms. It is a complex process that requires careful consideration of various factors to determine fair prices and facilitate efficient trading.
- Q: How are steel coils used in the manufacturing of automotive bodies?
- Steel coils are used in the manufacturing of automotive bodies as they are rolled into flat sheets and then formed into various car body parts, such as panels and frames. These coils provide the necessary strength and durability to withstand the rigors of daily use and ensure the structural integrity of the vehicles.
- Q: What are the different methods of welding steel coils?
- Steel coils can be welded using various methods, each with its own advantages and applications. The most commonly used methods for welding steel coils are: 1. Resistance Welding: By applying pressure and electric current, this method generates heat and joins the steel coils. It is ideal for high-speed production and can be categorized into spot welding, seam welding, and projection welding. 2. Arc Welding: This technique involves creating an electric arc between an electrode and the steel coils, resulting in intense heat and metal melting. Different arc welding techniques include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and flux-cored arc welding (FCAW). 3. Laser Welding: Laser welding employs a highly focused laser beam to melt and join the steel coils precisely. It offers excellent control, high welding speeds, and minimal heat-affected zones, making it suitable for thin materials and complex designs. 4. Electron Beam Welding: This method uses a concentrated beam of high-velocity electrons to melt and fuse the steel coils. It is commonly used for welding stainless steel and other high-temperature alloys, providing deep penetration and minimal distortion. 5. Friction Stir Welding: By plunging a rotating tool with a pin into the steel coils, heat is generated through friction, and the softened material is stirred together to form a solid joint. Although primarily used for joining aluminum, it can also be applied to steel coils. 6. Ultrasonic Welding: This technique involves applying high-frequency vibrations to the steel coils, creating friction and heat for fusing the materials. It is commonly used for smaller steel coils and provides fast and efficient welding with minimal distortion. These methods offer distinct advantages and are suitable for specific applications. The choice of welding method depends on factors such as the type and thickness of the steel, desired strength and quality of the weld, production speed, and cost considerations.
- Q: How are steel coils used in the manufacturing of medical equipment?
- Steel coils are used in the manufacturing of medical equipment as they provide strength, durability, and flexibility for various components. These coils are often used in the production of surgical instruments, medical devices, and diagnostic equipment where precision and reliability are crucial.
- Q: What are the applications of stainless steel coils?
- Stainless steel coils have a wide range of applications across various industries due to their unique properties and characteristics. Some of the key applications of stainless steel coils include: 1. Manufacturing industry: Stainless steel coils are extensively used in the manufacturing sector for the production of various products such as automotive parts, kitchen appliances, machinery components, and construction materials. The high corrosion resistance and durability of stainless steel make it an ideal choice for these applications. 2. Construction industry: Stainless steel coils are widely used in the construction industry for applications such as roofing, cladding, structural supports, and reinforcement. The strength, resistance to harsh weather conditions, and aesthetic appeal of stainless steel make it a popular choice in architectural designs. 3. Food processing industry: Stainless steel coils are commonly utilized in the food processing industry for equipment such as food storage tanks, conveyors, and processing machinery. Stainless steel's hygienic properties, resistance to corrosion, and ease of cleaning make it suitable for maintaining the purity and safety of food products. 4. Chemical industry: Stainless steel coils find extensive usage in the chemical industry due to their excellent resistance to corrosion from chemicals and harsh environments. They are used in the production of storage tanks, pipelines, and reactors that handle various chemicals and corrosive substances. 5. Energy industry: Stainless steel coils are widely employed in the energy sector for applications such as power generation, oil and gas exploration, and renewable energy systems. They are used in heat exchangers, turbine components, pipelines, and offshore structures due to their high resistance to corrosion, strength, and longevity. 6. Medical and pharmaceutical industry: Stainless steel coils are commonly used in medical and pharmaceutical applications due to their biocompatibility and resistance to corrosion. They are used in the production of surgical instruments, medical implants, and medical equipment that require sterilization and durability. 7. Automotive industry: Stainless steel coils are utilized in the automotive sector for various components like exhaust systems, fuel tanks, catalytic converters, and structural parts. Stainless steel's high heat resistance, strength, and resistance to corrosion and oxidation make it suitable for these applications. These are just a few examples of the wide range of applications of stainless steel coils. Their versatility, durability, and resistance to corrosion make them indispensable in numerous industries where reliability and longevity are crucial factors.
- Q: I am a beginner and have a slow to average swing speed. Should i get graphite or steel shafts for my irons and does it make a difference?
- How about graphite in your 3,4,5 irons and lightweight steel in your scoring clubs. You can swingweight them all the same so you will have a consistent feel through out the entire set and you will get extra help getting the ball in the air with the long irons and extra stability in the scoring clubs. And you save money by not having to put graphite in the entire set. As a beginner the clubs you get now may not suit you as you progress and your swing evolves so keep this in mind when buying a set of irons.
- Q: not iron, steel
- steel was first used in the 1800s in buildings.
- Q: How are steel coils inspected for surface defects using non-destructive testing methods?
- Steel coils are inspected for surface defects using non-destructive testing methods such as visual inspection, magnetic particle inspection, and eddy current testing. Visual inspection involves closely examining the coil's surface for any visible defects or abnormalities. Magnetic particle inspection is used to detect surface cracks and defects by applying a magnetic field and then applying iron particles that reveal any magnetic leakage caused by defects. Eddy current testing is employed to detect surface cracks and defects by inducing an alternating current in a coil that creates a magnetic field, and any changes in the field caused by defects are detected. These non-destructive testing methods help ensure the quality and integrity of steel coils without causing any damage.
- Q: A 100 kg solid steel ball with a radius of 5 m is being spun on ice with an angular velocity of 5 rev/s pointed into the ice (clockwise rotation when viewed from above).A student shoots a 10 kg marble at the steel ball. The marble hits the ball along its side as shown with an initial velocity of 5 m/s to the left. If, right after the collision, the final velocity of the marble is 2.5 m/s to the left, what is the angular velocity of the steel ball after the collision?
- You need to do conservation of angular momentum about the steel ball's axis. Angular momentum = I.ω The steel ball's initial ω = 5 rev/s = 5*2pi rad/s = 31.4 rad/s The steel ball's moment of inertia I = (2/5)*m*r^2 = 40*25 kg.m^2 = 1000 kg.m^2 The marble's initial ω = v / r where r is the perpendicular distance from the steel ball's axis You need to look at the diagram for this. The marble's I about the steel ball's axis is I = m*r^2 where r is the same as above. (marble is treated as a point mass). Then work out the total initial ang. momentum = final ang. momentum and solve for ω...
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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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