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 weight of a steel coil?
- The weight of a steel coil can vary depending on its size and thickness. Generally, a steel coil can weigh anywhere from a few hundred kilograms to several tonnes.
- Q:How are steel coils used in the manufacturing of metal structures?
- Steel coils are commonly used in the manufacturing of metal structures as they provide a convenient and efficient way to shape and form various components. These coils are unrolled and then processed through machinery that cuts, bends, and shapes the steel into the desired size and shape. This allows for precise and consistent fabrication, making it easier to assemble and construct metal structures such as buildings, bridges, and machinery.
- Q:How are steel coils inspected for weldability using welding tests?
- A range of welding tests can be utilized to inspect steel coils for their weldability. The bend test is a common approach where a segment of the coil is cut and bent to assess the weld's quality. This evaluation helps identify any brittleness or flaws that could compromise its integrity. Furthermore, the guided bend test is conducted to evaluate the weld's ability to endure bending without cracking or breaking. Another technique employed is the macro etch test, which involves cutting a cross-section of the coil and applying a chemical solution to etch it. This test effectively exposes imperfections or irregularities in the weld, such as porosity, slag inclusions, or fusion deficiencies. Moreover, the hardness test measures the weld's hardness, which is crucial as excessive hardness can lead to cracking or brittleness, while insufficient hardness may cause weld failure under specific conditions. Additionally, non-destructive testing methods like ultrasonic testing, magnetic particle inspection, or radiographic examination can be employed to detect internal defects, such as cracks or voids, in the steel coil welds without causing any damage to the material. Conducting comprehensive inspections through these welding tests is essential to ensure the quality and weldability of steel coils before their use in various applications. By identifying and addressing potential issues, these inspections guarantee that the steel coils meet the necessary standards for weldability and structural integrity.
- Q:You have two steel wool pads,one is cut up into little pieces, and the other is whole, and they are both submerged in water. 1.Which steel wool pad will rust quicker?2.How much faster will that pad rust? (estimate+explain the estimate)6.How could you make the steel wool pad rust faster?Please dont tell me to do my homework because I tried, but I bought the wrong type of steel wool
- How to make it rust faster ? Adding oxygen to the water - bubbling air through it. Raising the temperature should make the reaction go faster, but I believe it also reduces the amount of dissolved gas. Adding salt, or an ionic compound like an acid, will accelerate electrochemical corrosion. That usually requires a less active metal, like copper, in contact with the steel, but variations in the composition of the steel may be sufficient to promote corrosion.
- Q:What are the different methods of coil rewinding for steel coils?
- Coil rewinding for steel coils can be approached in various ways, each with its own merits and considerations. One frequently employed technique is the slitting and rewinding process. This entails slicing the original steel coil into narrower strips, commonly known as "slits," and then winding these slits onto separate reels. Slitting and rewinding grants the ability to customize the width of the coil, making it popular in industries like automotive, construction, and packaging. Another method is oscillate winding. This approach involves rewinding the steel coil in a back-and-forth manner, resulting in a tighter and more compact coil. Oscillate winding proves particularly advantageous in reducing coil deformation during transportation and storage, as well as optimizing material usage. Additionally, the pancake coil winding method finds frequent use for steel coils. This technique involves rewinding the steel coil in a flat, pancake-like shape, making it easier to process and handle. Pancake coils are often employed in applications where space is limited, such as electrical transformers. Furthermore, advanced coil rewinding methods make use of automated equipment, such as robotic systems or computer-controlled winding machines. These technologies ensure precise and consistent rewinding, minimizing human error and enhancing overall efficiency. Ultimately, the choice of coil rewinding method hinges on the specific requirements of the application, including coil dimensions, material properties, and desired production output. Manufacturers must thoughtfully consider factors like coil quality, cost-effectiveness, and equipment capabilities when deciding on the most suitable method for their steel coil rewinding process.
- Q:I was wondering if anyone knew the grade/type of steel for this product. I'd like to use it as stock for a knife blade, but would like to know the specs so I can determine if it is suitable and, if so, how best to heat treat it.Thanks.PS: I know it isn't stainless, but that leaves a lot of other steel types.
- Flat Steel Bar
- Q:I am searching for an online article which discusses any aspect of the use of austenitic stainless steels. I was just wondering if anyone could help me find one. No sales articles. Thank you!
- *Austenitic, okorder
- Q:Can steel coils be coated with anti-slip materials?
- Yes, steel coils can be coated with anti-slip materials. These materials can provide additional friction and grip to prevent slipping and sliding during transportation or handling.
- Q:I have a belly button piercing and the metal is stainless steel.. I was wondering does it develop rust whenever you go shower and clean it? Can I still swim in the summer with it or do I have to take it out? What happens if I swim in the pool with it?
- Theoretically stainless steel is supposed to be what it's name says it is - stainless. However there are different grades of stainless so yours might dis-colour if it's low grade. Think of all the stainless steel cutlery you use to eat with - if you keep it clean it doesn't go rusty ; it can if you don't look after it.
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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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