Pre-painted Rolled Coil for Roofing Construtions
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 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: I'm trying to bend stainless steel spoons, forks knives etc. for an art project. Will heating them help bend them into certain shapes or will heat only strengthen it? What is the best way to bend stainless steel?
- We are regular buyers of such bends.
- Q: 7850kg/cu.m density is typical for all type of steel? like reibar, I- beam and so on
- 90% of the steels used today are plain mild carbon steels consisting of iron with less than 1% carbon content and as such have a density of about 7750 kg/cubic meter. Some special steels which have a significant percentage of alloying elements such as chrome or manganese or other elements will have greater density bringing the steel up to about 8000 kg / cubic meter. There are a greater many factors influencing the exact density of a steel. Even for steels of exactly the same content of iron , carbon and other alloying elements, there may be a difference ( very small mind you ) in density due to work hardening. The difference in this case is due to movement of dislocations which become locked in the grain boundaries and this forms a more dense crystal structure. For this same reason, the theoretical density of steel (which does not take into account dislocations) is greater than the measured density of steel.
- Q: What are the environmental benefits of using steel coils?
- There are several environmental benefits associated with using steel coils. Firstly, steel is a highly recyclable material. Steel coils can be easily recycled and repurposed into new steel products, reducing the need for mining and extraction of raw materials. Recycling steel also requires less energy compared to producing it from scratch, resulting in lower greenhouse gas emissions and a smaller carbon footprint. Additionally, steel is known for its durability and longevity. When used in construction or manufacturing applications, steel coils can last for decades without losing their structural integrity. This reduces the need for frequent replacements, which in turn reduces the consumption of resources and energy required for production. Furthermore, steel is highly resistant to corrosion and weathering, making it a suitable choice for outdoor applications. This resistance to decay means that steel coils can withstand harsh environmental conditions and maintain their functionality for extended periods. This reduces waste generation and the associated environmental impacts of replacing damaged or deteriorated materials. Lastly, steel is a versatile material that can be used in a wide range of industries and applications. Its versatility allows for efficient use of resources, as steel coils can be easily adapted and customized to meet specific project requirements. This versatility also enables the use of steel in sustainable building designs, such as energy-efficient structures or green buildings that incorporate renewable energy systems. In conclusion, the environmental benefits of using steel coils include their recyclability, durability, resistance to corrosion, and versatility. By choosing steel coils for various applications, we can contribute to resource conservation, reduced carbon emissions, and a more sustainable future.
- Q: For the purpose of blade crafting. I need to heat treat this low quality steel i got.It's ASTM A36Is heat treatable and temperable?
- A36 is plain carbon structural steel. A36 could almost be considered junk steel. It is not suitable for cutting tools in any respect, as it is far to soft to hold an edge. A36 generally cannot be heat-treated, A36 can only be strengthened by cold-working, and even then, only up to about 60,000 psi. Heating the steel will only make it softer. The only real virtue of A36 is that it's easy to work with, it's easily cut and machined and it is very easy to weld. This is good for making steel structure, but not for knives. Probably the most popular material for knife blades is type 440C stainless. 440C is easy to work with in the un-treated state, and the heat treatment procedure is relatively simple.
- Q: What are the different grades of steel used for making coils?
- When making coils, various grades of steel are commonly utilized, depending on specific requirements and applications. Some frequently employed grades are: 1. Mild steel, also referred to as low carbon steel, is often employed for coil production due to its favorable characteristics of formability, weldability, and machinability. It is suitable for diverse applications where strength and durability are not the primary concerns. 2. High carbon steel, which contains elevated carbon levels, offers increased strength and hardness. This grade is commonly used for coils that require high strength and resistance to wear, such as springs and automotive components. 3. Stainless steel, characterized by a high chromium content, exhibits excellent corrosion resistance. Coils made from stainless steel are commonly utilized in applications where resistance to rust and staining is critical, such as kitchen appliances, automotive trim, and medical equipment. 4. Galvanized steel, coated with a layer of zinc, provides exceptional corrosion resistance. Galvanized steel coils find common use in outdoor applications that involve exposure to moisture and other elements, including roofing, fencing, and HVAC ductwork. 5. Electrical steel, specifically designed for electrical applications like transformers, motors, and generators, possesses low impurity levels and is optimized for high magnetic permeability and low core loss. 6. Advanced high-strength steel (AHSS), engineered to offer exceptional strength while maintaining good formability, is frequently employed in the automotive industry. AHSS coils contribute to lightweighting vehicles while ensuring structural integrity and crashworthiness. These examples represent only a fraction of the steel grades employed in coil manufacturing. The choice of a specific grade depends on factors such as the intended application, desired properties, and cost considerations.
- Q: Or is it a coating that is applied? If so what types of steel? Or what types of coatings?
- there is a weathering steel that corrodes and then stops. The outer surface of the steel is a rusty looking brown but after the first layer of rust appears, the process stops. It used to be called A588 steel. So called mild steel is not A36 anymore, it is A992 (50 ksi yield). The only material that is A36 anymore are angles, channels, and plate. You can coat the steel with an epoxy coating to protect the steel from this highly corrosive environment. Google a company called TNEMEC. They offer epoxy coatings for steel and other coatings. Weathering steel and epoxy coating are not cheap options.
- Q: What are the different types of steel coil transport methods?
- There are several different types of steel coil transport methods, including trucking, rail transportation, and sea freight. Trucking involves using flatbed trucks or specialized trailers to transport steel coils over short distances. Rail transportation utilizes flatcars or specialized railcars to transport steel coils over long distances. Sea freight involves shipping steel coils in containers or on specialized vessels across international waters.
- Q: How are steel coils used in the production of kitchenware?
- Steel coils are used in the production of kitchenware as they serve as the primary material for manufacturing various items like pots, pans, and utensils. The coils are typically cut and shaped into the desired form before being further processed through various techniques such as stamping, welding, and polishing. These processes help create durable and heat-resistant kitchenware that is essential for cooking and food preparation.
- Q: What are the end uses of galvanized steel coil? What is the market like for this raw material? Would something like this be expensive?Also can you explain: PPGI.And the following specifications; what do they mean/represent?Required Composition :Thickness- 0.23mmCarbon- Max. 0.01%Manganese- Max. 0.20%Phosphorous- Max. 0.05%Sulphur- Max. 0.01%Silicon- ABT. 2.80 - 3.50%CRGO Quality- Prime QualityThanks
- Steel coil is the name given to thinner sheet steel when it is manufactured - it comes out of the machine and is formed into a coil for ease of handling storage and transportation. Thin sheet steel is used for plenty of stuff. It can be slit (cut) into thin strips as well as just cropped and used at one of the standard lengths x widths it leaves the mill. There is a big market for this material. It is used in many construction and engineering applications for things like ducting, boxes, gutters, down pipes, flashings, panels, car bodies etc., anything made of thin steel Galvanising is a flash coating of zinc which improves it's corrosion resitance. Cost wise it is a relatively cheap material. The chemical composition of steel varies, it is mostly iron but has various other elements added or present as impurities that change it's characteristics, depending on the end use. These additional elements can be selected to give better weld ability, hardness, tensile strength, corrosion resistance, flexibility and so on. In many applications excess of these chemicals is undesirable. For example sulphur and carbon are generally better at lower levels. The chemical composition data is contained in a material data sheet and expressed as a percentage of the chemical present and which gives the composition of a particular batch of steel, allowing it to be selected for particular applications and traced for quality assurance purposes. The list you have there shows presence and quantity of other elements in a particular batch of coil. The thickness is 0.23mm, quite thin.
- Q: for my engineering project I have been asked to design a method of suspending a TV of weight 14Kg from a gantry, the TV must be 5m below the gantry. My team have decided to use as a suspension method a steel cylinder of outer diameter of 10cm and an inner diameter of 8, however we now need to work out both the max stress and strain and the actual stress and strain. and help would be useful
- In most engineering calculations we have to make some assumptions about ideal behavior of a material otherwise we would not be able to simplify our equations to manageable sizes. Your steel cylinder (which I'll call a pipe) is made of a certain type of steel. That steel type has property tolerances listed in a steel manual to help you know about your steel before you begin. You'll need to know the cross-sectional area of the pipe and the weight of the TV to determine an average stress on the pipe. Obviously the weight of the TV is the force it generates. The force is its mass x gravitational acceleration. Since we typically think of steel as an elastic material, we think of it stretching like a rubber band or a spring. You pull it down with a TV and it deflects a certain amount, and will return to its original length when the TV is removed. It is typical to assume that all steel, regardless of its strength, has the same value for this elastic property. It is commonly referred to as the elastic modulus. This value will help you determine what type of strain occurs under what type of stress. So, once you have the stress, you can get the strain by using the elastic modulus. Once you have the strain you can determine the deflection based on the pipe length. Having the steel properties will help you determine how close your TV comes to stressing the pipe to its yield stress. If you reach a yield stress, your steel will deflect, but when you take the TV off it will not return to its original shape. I hope I've helped outline some of the things you'll need to do for the project, I tried not to give away specifics so that you can actually engage your brain around the project. Enjoy, learn a lot, and realize that this skill could easily turn into a career where you are designing projects that when done correctly save people's lives every day of the year.
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Pre-painted Rolled Coil for Roofing Construtions
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 25 m.t./month
OKorder Service Pledge
OKorder Financial Service
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