• Prepainted Galvanized Steel Coil System 1
Prepainted Galvanized Steel Coil

Prepainted Galvanized Steel Coil

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PREPAINTED GALVANIZED STEEL COIL
Specification:122O*O.47,Ral 5O12

Steel Grade & Standard: CG20140923

Zinc Coating Mass:Z180  
Surface Treatment: non-chromate, oiled  
Coil ID:508mm  Coil Weight:6-10MT
Package Type:EYE TO SIDE
Thickness Tolerance:+/-0.02mm  Width Tolerance:+/-5mm
Zinc Coating Tolerance:-/+10g/m2

Q: Suppose you made a sword out of diamond (just follow me here, it's only theoretical). Would it be lighter than a sword of the same size made out of steel?
The weight of steel is dependent among what kind of steel, shape, length, width, thickness a 5mm by 5mm ball of carbon steel would wiegh 1.69969 g a same size diamond weighs .79 carats equivelent to 1.5 grams So the basic answer is, yes, diamond is lighter than steel, but barely
Q: What are the main factors that affect the formability of steel coils?
The main factors that affect the formability of steel coils include the steel's composition, mechanical properties, thickness, temperature, and lubrication.
Q: How are steel coils inspected for oil or rust residues using chemical analysis?
Steel coils can be inspected for oil or rust residues using chemical analysis techniques. One of the commonly used methods is Fourier transform infrared spectroscopy (FTIR). In this technique, a small sample of the steel coil is taken and subjected to infrared radiation. The infrared spectrum obtained is then analyzed to identify the presence of specific chemical bonds that are characteristic of oil or rust residues. For detecting oil residues, a common approach is to use the peak at around 2920 cm-1 in the FTIR spectrum, which corresponds to the C-H stretching vibration in hydrocarbon chains. If this peak is observed, it indicates the presence of oil residues on the steel coil. To identify rust residues, the FTIR spectrum is analyzed for the presence of characteristic peaks corresponding to iron oxide or hydroxide compounds. For example, the presence of a peak at around 560 cm-1 suggests the presence of iron oxide (FeO) or iron hydroxide (Fe(OH)3). In addition to FTIR analysis, other chemical analysis techniques can also be utilized, such as X-ray fluorescence spectroscopy (XRF) or energy-dispersive X-ray spectroscopy (EDX). These techniques can provide elemental composition information, allowing for the identification of specific elements associated with oil or rust residues, such as carbon or iron. Overall, the chemical analysis of steel coils for oil or rust residues provides a reliable and accurate method to ensure the quality and cleanliness of the coils before further processing or usage.
Q: Could someone please explain what happens when steel is heat treated and why these happenings cause the steel to become harder? Please dig down into the micro details of the crystallites but in somewhat laymen's terms. Also describe the processes which achieve these results; if you have the time. Thanks for your time and effort.
Mild steel is a solution of carbon within iron, etc. When the steel is very hot the carbon is well distributed. As the steel is cooled iron crystals form excluding the carbon that will then collect at the boundaries (grain boundaries) between iron crystals. If cooling is rapid at any point in the cool down crystal growth will cease (affecting final grain size and the mix of carbon and iron at the grain boundaries). The ductility or hardness of the resulting steel will be determined by the grain sizes and makeup of the carbon/iron mix between grains. Ductile iron permits 'slabs' of iron to slip past each other within iron crystals and location of carbon atoms may help prevent slip resulting in hardness. Therefore, heat treatment usually consists of 'soaking' the steel at a temperature high enough to dissolve all the carbon uniformly then cooling it down slowly or rapidly to obtain optimum grain size and interstitial carbon between grains to obtain desired properties.
Q: How are steel coils used in the manufacturing of metal furniture?
Steel coils are used in the manufacturing of metal furniture as they provide the raw material for forming different components, such as frames, legs, and support structures. These coils are processed and shaped through various manufacturing techniques like cutting, bending, and welding to create the desired furniture pieces. The strength, durability, and versatility of steel make it an ideal material for metal furniture, ensuring stability and longevity in the final products.
Q: But we've had a problem with bears being attracted to the water in the Intex Inflatable pools, the bear would come at night every so often and push on the sides letting out the water.Would a bear be able to bend a steel frame before I go and spend money?
depends on the steel thickness and positioning. frm your question I'm guessing you're not really well versed in steel framing or use... im guessing whatever you build, a bear can destroy. if i was to build it not even 100 bears can destroy it. it doesn't require much steel, it's just about bracing the positing of steel and some design.
Q: What are the different methods of coil cutting for steel coils?
There are several methods of coil cutting for steel coils, each with its own advantages and suitability for different applications. Here are some of the common methods: 1. Slitting: Slitting is the most commonly used method for coil cutting. It involves passing the steel coil through a set of rotating circular blades that cut the coil into narrower strips. This method is suitable for producing narrow width strips with precise dimensions. 2. Shearing: Shearing is another method used for coil cutting, especially for thicker gauge coils. It involves using a straight blade to cut the coil along a straight line. Shearing is suitable for producing larger width strips and is often used for heavier gauge steel coils. 3. Laser Cutting: Laser cutting utilizes a high-powered laser beam to cut through the steel coil. This method offers a high degree of precision and can be used to cut complex shapes and patterns. Laser cutting is often used for specialized applications where accuracy and fine details are crucial. 4. Waterjet Cutting: Waterjet cutting involves using a high-pressure jet of water mixed with abrasive particles to cut through the steel coil. This method is versatile and can be used for cutting various materials, including steel. Waterjet cutting is suitable for producing clean and precise cuts without heat-affected zones. 5. Plasma Cutting: Plasma cutting utilizes a high-temperature plasma arc to melt through the steel coil. This method is efficient and can be used for cutting thick gauges of steel. Plasma cutting can achieve high cutting speeds, making it suitable for industrial applications. 6. Guillotine Cutting: Guillotine cutting involves using a guillotine-like mechanism to cut through the steel coil. The coil is placed on a table, and a blade descends vertically to cut through it. Guillotine cutting is suitable for producing straight and accurate cuts with minimal burrs. The choice of coil cutting method depends on various factors such as the desired width and thickness of the strips, required precision, production volume, and the specific application. It is important to consider these factors and consult with experts to determine the most suitable coil cutting method for a particular steel coil.
Q: How are defects in steel coils repaired?
Defects in steel coils are repaired through various methods depending on the type and severity of the defect. Common repair techniques include grinding, welding, soldering, or using heat treatment processes to correct the defects. The specific approach is determined by professionals after assessing the nature of the defect and considering the desired quality and performance standards of the steel coils.
Q: and what type of metal is steel?
Iron and carbon is call mild steel, low carbon steel or high carbon steel depending on the percentage of carbon use , higher the carbon is used the tougher the steel is .but as far as I vaguely remember, in high carbon steel its only 3% of less carbon. Iron in its pure state is called wrought iron which is soft. Then there are Tool steel, High speed steel [drill bits and cutting tools are made]. Spring steel. [springs ] are made. Then we have alloy steel is another
Q: steel of beam has been rusted ,how can i repair it?
The rust needs to be removed by what ever means works best for your situation.. Often a twisted wire wheel on a 4 1/2 angle grinder works quickly... a hand wire brush may work well for you, or just plain sandpaper and a LOT of elbow grease (hard work) will remove the rust. From there, a coat of primer paint made for steel. Any hardware store in your area would have such a primer, in quart cans or spray cans. Once that is dry (a good 24 hours for most formulations), you can spray or brush paint the beam most any color you wish.. I've had very good luck with acrylic enamel paints for such projects.. IF your steel is badly pitted, you should consider getting it inspected to insure it will still hold up or support what ever it was installed to do. If you want a smooth finish, once the rust removal is done, you can fill in the dips and pock marks with an auto body filler (Bondo is one brand name)... It comes in 2 parts (the main filler and a hardener) that are mixed well and used to fill in the holes and divits with a plastic spreader.. Once hard (in a few minutes with most brands of filler), sanding with sandpaper and a sanding block will smooth out the finish very nicely. From there, the same primer mentioned above and paint will finish up your project... Hope this helps some... Good Luck!

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