• Pre-painted Rolled Steel Coil for Construction Roofing Constrution System 1
  • Pre-painted Rolled Steel Coil for Construction Roofing Constrution System 2
  • Pre-painted Rolled Steel Coil for Construction Roofing Constrution System 3
  • Pre-painted Rolled Steel Coil for Construction Roofing Constrution System 4
Pre-painted Rolled Steel Coil for Construction Roofing Constrution

Pre-painted Rolled Steel Coil for Construction Roofing Constrution

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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

 Pre-painted Rolled Steel Coil for Construction Roofing Constrution

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. 

 Pre-painted Rolled Steel Coil for Construction Roofing Constrution

 

 

 

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.  

Pre-painted Rolled Steel Coil for Construction Roofing Constrution

 

  Pre-painted Rolled Steel Coil for Construction Roofing Constrution

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 asked a question last week about stainless steel and got some great answers. I combed all over the internet to try to figure this one out but could not find anything. What resists bending better: chrome vanadium steel (i.e. a steel commonly used to make tools) or stainless steel 304. My guess would be the chrome vanadium alloy but thats just a guess. Which on resist's bending better and by how much (#'s please :-)). Also, if anyone knows if chrome vanadium steel is cheaper than stainless steel 304 that would be awesome? I can't find a price per pound on chrome vanadium steel anywhere! Please help. Thanks in advance-Josh
Steel Bending Strength
Q: What are the different types of corrosion protection methods used for steel coils?
There are several types of corrosion protection methods used for steel coils, including galvanization, painting, powder coating, and chemical treatments. Galvanization involves applying a layer of zinc to the steel surface to provide a barrier against corrosion. Painting and powder coating involve applying a protective layer of paint or powder to the steel, which acts as a barrier against moisture and other corrosive elements. Chemical treatments, such as phosphating or chromating, create a protective layer on the steel surface, preventing corrosion. These methods are used to ensure the longevity and durability of steel coils when exposed to harsh environmental conditions.
Q: what exactly does it mean when some sword makers refer to finding the truth of steel. I have heard that many have tried to find the truth but i dont really understand what there is to find.
I am unsure of what the Truth of Steel is, but here is the Riddle of Steel (from Conan) Thulsa Doom: Yes! You know what it is, don't you boy? Shall I tell you? It's the least I can do. Steel isn't strong, boy, flesh is stronger! Look around you. There, on the rocks; a beautiful girl. Come to me, my child... Thulsa Doom: [coaxes the girl to jump to her death] Thulsa Doom: That is strength, boy! That is power! What is steel compared to the hand that wields it? Look at the strength in your body, the desire in your heart, I gave you this! Such a waste. Contemplate this on the tree of woe. Crucify him!
Q: What are the advantages of using galvanized steel coils?
Using galvanized steel coils in various applications offers a multitude of benefits. Firstly, their resistance to corrosion is highly impressive. Through the process of galvanization, a protective layer of zinc is applied to the steel, effectively guarding it against moisture, chemicals, and other elements that can lead to rust and corrosion. As a result, galvanized steel coils are an excellent choice for outdoor applications that are exposed to harsh weather conditions or corrosive substances. Secondly, galvanized steel coils boast exceptional durability and longevity. The zinc coating provides an additional protective layer, enhancing the steel's resistance to wear and tear. Consequently, galvanized steel coils have a longer lifespan compared to other steel types, reducing the frequency of replacements and saving costs in the long term. Moreover, galvanized steel coils exhibit remarkable strength and structural integrity. The zinc coating not only offers corrosion resistance but also augments the overall strength of the steel. This makes galvanized steel coils an ideal option for applications that demand a robust and dependable material, such as construction, automotive, and industrial manufacturing. Furthermore, working with galvanized steel coils is effortless and requires minimal maintenance. The zinc coating creates a smooth and uniform surface, facilitating tasks like painting, welding, and fabrication. Unlike other coatings or finishes, galvanized steel coils do not necessitate regular maintenance or additional protective measures, reducing the time and effort required to keep them in optimal condition. Lastly, galvanized steel coils are environmentally friendly. The zinc coating used in galvanization is recyclable, making it a sustainable choice for various industries. Additionally, the extended lifespan of galvanized steel coils diminishes the need for frequent replacements, thereby reducing waste and the overall environmental impact. In conclusion, the advantages of utilizing galvanized steel coils encompass corrosion resistance, durability, high strength, easy workability, low maintenance, and environmental sustainability. These benefits have solidified galvanized steel coils as a favored option in a wide range of applications, spanning from construction and manufacturing to automotive and infrastructure projects.
Q: Ok, I need two negative facts about steel wheels and two for aluminum wheels. im designing a wheel for a project in design and draw for production class. Also if you find a web site that you got the info from plz refrence it i need to write down the source of the info, but if you can't its ok. Thanks
Negative facts for steel wheels: (1) Not as many style choices as aluminum. (2) Rust easily even when painted or powder coated, due to rock chips. (3) Heaver than aluminum, as far as fuel economy. Negative facts for aluminum wheels: (1) More sensitive to proper torquing of lug nuts. IE torque must be checked more often. (2) Susceptible to impact damage from road hazards much more than steel. (3) Need constant attention to prevent oxidation. Are these what you are looking for? I hope so. Wingman
Q: I want to make a lap steel guitar in my wood tech class. can anyone give me a link to a video or site that has steps on how to build one.
Steel guitars have cables attached to foot pedals to change the sound. I don't know how this would work with the top resting on your lap.
Q: I have a need to connect various stainless steel tubes and fitting together and was wondering how to do it. I know a TIG welder is an option but have heard rumors that there is a way to solder it in much the same way you affix copper pipe. Perhaps with higher heat and different flux. I need step by step and maybe suppliers of the materials. Thanks in advance and please I do not need the call a plumber answers as I've gotten in the past
ss has to be either welded or brazed you can [solder ] it but it has to be a silver solder, and will not have any strength
Q: What are the common defects in steel coil finishes?
Steel coil finishes can be affected by various defects that can impact both their appearance and functionality. Before using or selling the coil, these defects may need to be addressed. One common defect is coil breaks, where the steel strip breaks during winding or unwinding. If not dealt with, this defect can cause a discontinuity in the coil's surface and potentially lead to further damage. Another defect is edge wave, which refers to a distortion or waviness at the edges of the coil. This can occur during the rolling or cooling process and can affect the coil's flatness and uniformity. Corrosion is another issue that can arise if steel coils are not properly protected or stored. This can result in rust and degradation of the steel, impacting its strength and appearance. Streaks and stains can appear on the surface of steel coils due to improper cleaning or contamination during production. These defects can affect the aesthetic appearance of the steel and may need to be addressed before use. Scratches and dents can occur during handling, transportation, or storage of steel coils. These defects can impact the flatness and surface quality of the steel and may require repairs or adjustments. If a coating or paint is applied to the steel coil, several defects can arise, including blistering, peeling, or uneven application. These coating defects can affect the durability and appearance of the steel. It's important to note that the severity of these defects can vary, and different methods of repair or mitigation may be needed. Regular inspections and quality control measures can help to identify and address these defects before they become more significant issues.
Q: How do steel coils contribute to the manufacturing of electrical appliances?
Steel coils are essential components in the manufacturing of electrical appliances as they are used to create the core of transformers and electromagnets. These coils, made from steel, provide the necessary magnetic field required for the functioning of electrical appliances such as refrigerators, televisions, and washing machines.
Q: What are the common coil storage conditions?
The common coil storage conditions include storing coils in a dry and clean area, away from direct sunlight and extreme temperature variations, and ensuring proper ventilation to prevent moisture buildup. It is also important to stack the coils properly, avoiding any damage or deformations, and to label and organize them for easy identification and retrieval.

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