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

Pre-painted Rolled Steel Coil for Construction Roofing

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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

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.  

 

 

  Pre-painted Rolled Steel Coil for Construction Roofing

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 are steel coils inspected for hardness using hardness testers?
To assess the strength and durability of steel coils, hardness testers are employed to examine their hardness. Hardness testers are specialized devices used to gauge a material's resistance to indentation or penetration. For steel coils, Rockwell or Brinell testers are commonly utilized. Both methods entail exerting a precise force onto the surface of the coil and measuring the depth of indentation or size of the impression made. In the case of Rockwell testing, a steel ball or diamond cone is pressed onto the coil's surface with a predetermined force. The depth of penetration is then measured and compared to a standardized scale in order to determine the hardness value. Different scales are employed based on the size and type of indenter in use. On the other hand, Brinell testing involves using a spherical indenter made of tungsten carbide or hardened steel. This indenter is pressed onto the coil's surface with a known force, and the resulting indentation is measured and compared to a standardized table to determine the hardness value. Both methods provide a quantitative measure of the steel coil's hardness, which serves as an indicator of its ability to resist deformation, wear, and cracking. The hardness test results are subsequently utilized to ensure that the steel meets specific quality standards or customer requirements. It is important to note that the inspection process may involve sampling, where representative sections of the steel coil are tested, or it may involve testing the entire coil, depending on the specific inspection requirements. Additionally, accurate and reliable results necessitate proper calibration and maintenance of the hardness testers.
Q:How are steel coils used in the production of steel bolts?
Steel coils are used in the production of steel bolts by being uncoiled and then fed into a machine that cuts and forms the bolts. The coils provide a continuous supply of high-quality steel, ensuring consistent and precise production of bolts.
Q:How are steel coils used in the manufacturing of transmission shafts?
Steel coils are used in the manufacturing of transmission shafts as they provide the raw material required for shaping and forming the shaft. The steel coils are typically cut into specific lengths and then undergo various processes such as heat treatment, machining, and forging to shape them into transmission shafts, which are crucial components in the transmission system of vehicles and machinery.
Q:More specifically steel wire (around 1/8 diameter). I'm doing a science fair project where I'm testing if concrete encased in steel has more fire resistance than steel by itself. However, I have no idea what the dimensions of concrete encased steel is so I can't scale down. And if I did have the dimensions I wouldn't know how to encase it around the steel wire (do I just poor concrete over it (heck I've never even used concrete)? Thanks for any help.
Yeah, just pour the concrete over it, but make sure the steel is in the middle of the concrete (I'm sure you can figure out a way to do this). What you're thinking of is called steel rebar.
Q:So...I'm learning about how steel is made and I'm wondering if there is a more environmentally friendy method. I view it as unfriendly b/c of the oxygen that is injected when the steel is in the blast furnace or electric arc furnace. This oxygen bonds w/ the carbon to produce CO and CO2. THis is necessary to reduce the amount of carbon content to produce harder steels. So what other methods are there that can be used w/o having to end up w/ co and co2? thanks
From what I understand of it, US steel is better as the steel is more recycled than Canadian, so a lot of that oxygen / CO2 has already taken place compared to working from ore. The second reason US steel is environmentally ahead of Canadian is that US tends to use Electric Arc, while Canadian uses Basic Oxygen, Basic Oxygen uses more energy than electric arc, and I think it also uses more oxygen, but I would suspect that oxygen that it uses is 'waste oxygen' and not converted into Co2 because the Co2 process is limited by the carbon, and steel only has so much carbon.
Q:What is the average lifespan of a steel coil storage rack?
The average lifespan of a steel coil storage rack can vary depending on various factors such as the quality of the rack, the frequency and intensity of use, and proper maintenance. However, a well-maintained and durable steel coil storage rack can typically last for several decades.
Q:What are the different types of steel processing techniques for coils?
There are several different types of steel processing techniques for coils, including hot rolling, cold rolling, galvanizing, and annealing.
Q:Can steel coils be deep-drawn?
Yes, steel coils can be deep-drawn. Deep-drawing is a metal forming process where a sheet or coil is drawn into a die cavity to create a three-dimensional shape. Steel coils, due to their high strength and ductility, are often used in deep-drawing applications to produce various products such as automotive parts, kitchen appliances, and containers.
Q:How do steel coils contribute to the renewable energy equipment industry?
The renewable energy equipment industry relies heavily on steel coils, as they are a crucial component in the manufacturing process of various renewable energy technologies. Wind turbines, in particular, heavily rely on steel coils for their construction. The tower, nacelle, and rotor blades of wind turbines all require steel coils. When it comes to wind turbine towers, steel coils are used to fabricate the structural components that provide stability and support. These coils are rolled and welded together to form the tower, ensuring its strength and durability against the wind forces. Steel coils are also used in the production of the nacelle, which houses the generator and other essential components. Steel coils also play a significant role in the manufacturing of rotor blades for wind turbines. These blades are responsible for capturing wind energy and converting it into rotational energy. Steel coils are used to create the internal structure of the blades, providing the necessary strength to withstand the aerodynamic forces. These coils are often combined with composite materials to optimize the performance and efficiency of the blades. In addition to wind turbines, steel coils are utilized in other renewable energy technologies such as solar panels. In the manufacturing process of solar panels, steel coils are used to create frames and supporting structures that hold the photovoltaic cells in place. These frames ensure the stability and longevity of the solar panels, allowing them to effectively capture sunlight and convert it into electricity. To summarize, steel coils are an integral part of the renewable energy equipment industry. They provide the strength, durability, and structural support required by various renewable energy technologies. By enabling the production of wind turbines, solar panels, and other renewable energy equipment, steel coils contribute to the expansion and development of the renewable energy sector. This advancement is crucial in the global transition towards cleaner and more sustainable sources of energy.
Q:I need steel toe shoes for a workplace, where can I get them?I live in Surrey,UK.
steel okorder

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