High Quality Prepaint Aluzinc Steel Coil

High Quality Prepaint Aluzinc Steel Coil System 1

High Quality Prepaint Aluzinc Steel Coil

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 80000 m.t./month

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Product Description:

Specification

1. Thickness: 0.3-0.8mm

2. Width: 914-1250mm

3. Inner Diameter: 508mm

4. Weight of Steel Coil: 3-15MT

5. Available Dipped Layer: 50-150g/m2

6. Surface Texture: Normal Coated

7. Type of coating structure: 2/1 Coat the top surface of the steel sheet twice, coat the bottom surface once, and bake the sheet twice.

8. Front Side Paint Thickness: 15-20μm (bottom paint+top paint)

9. Back Side Paint Thickness: 5-10μm

Mechanical Properties

1. Mechanical properties of base metals

Grade	Tensile Test
Grade	Yield Strength MPa	Tensile Strength MPa	Elongation A80mm % ≥
DC51D+Z	140-350	270-500	22
DC52D+Z	140-300	270-420	26
DC53D+Z	140-300	270-380	30

2. Common performance of front coating

(1). Thickness: ≥20μm

(2). Pencil Hardness: 2H

(3). 60° specular glossiness of coating: >60

(4). 180°bend: ≤3T

(5). Impact: ≥9J

(6). Salt Fog Resistant: ≥500h

(7). Color difference:<3ΔE

Q: I own a crappy steel string acoustic and a very nice electric guitar.I have saved up to buy a new acoustic but I cannot decide to just invest in a better steel string or explore around with a nylon string. From others experience, will I get my fill of satisfaction of playing on a nylon, or should I stick to a steel string?: Really?! I think you would be more satisfied with a harmonica. And that is because I know you better than you know yourself. But, if you like steel, go for a 12-string.

Q: Can steel coils be coated with luminescent materials?: Yes, steel coils can be coated with luminescent materials.

Q: How are galvanized steel coils different from regular steel coils?: In terms of their protective coating, there is a difference between galvanized steel coils and regular steel coils. Galvanized steel coils have a layer of zinc coating, which serves as a barrier against corrosion and rust. This process, called galvanization, involves immersing the steel coils in a bath of molten zinc or applying zinc to the surface using different methods. On the other hand, regular steel coils lack this protective coating, making them more prone to corrosion and rust. The zinc layer on galvanized steel coils not only functions as a physical barrier but also provides sacrificial protection. This means that if the coating is scratched or damaged, the zinc sacrifices itself to shield the underlying steel from corrosion. Consequently, galvanized steel coils are highly durable and suitable for applications that require resistance to harsh environmental conditions. These applications include outdoor construction projects, automotive manufacturing, and the production of household appliances.

Q: What are the factors influencing the price of steel coils?: There are several factors that influence the price of steel coils. 1. Raw material costs: The price of steel coils is directly impacted by the cost of raw materials, such as iron ore and coal. Fluctuations in these commodity prices can greatly affect the overall price of steel coils. 2. Demand and supply: The supply and demand dynamics in the steel industry play a significant role in determining the price of steel coils. If there is a high demand for steel products, the price of steel coils is likely to increase. Conversely, if there is an oversupply of steel, prices may decrease. 3. Production and manufacturing costs: The cost of producing and manufacturing steel coils, including labor, energy, and transportation costs, can impact the final price of the product. Any changes in these costs can influence the overall price of steel coils. 4. Currency exchange rates: Steel is a global commodity, and its price can be influenced by fluctuations in currency exchange rates. If the currency in which steel is traded weakens against other currencies, it can result in higher prices for steel coils. 5. Government regulations and policies: Government regulations and policies, such as import tariffs, export restrictions, and environmental regulations, can impact the price of steel coils. These regulations can affect the cost of production and trade, ultimately influencing the price of steel coils. 6. Market competition: The level of competition among steel manufacturers and suppliers can also impact the price of steel coils. If there are multiple suppliers and manufacturers in the market, it can lead to competitive pricing, potentially driving down the price. On the other hand, if the market is dominated by a few suppliers, prices may be higher. It is important to note that these factors can vary over time and in different regions, ultimately affecting the pricing of steel coils in the market.

Q: How are steel coils used in the production of HVAC ducts?: Steel coils are used in the production of HVAC ducts as they are rolled into a specific shape and size to form the main body of the duct. The coils are then cut and welded together to create a seamless and durable structure that can withstand the high temperatures and pressures associated with HVAC systems.

Q: I was wondering what material most common motorcycle gas tanks are made out of? is it steel? stainless steel? aluminum? what are the advantages and disadvantages or each?: Aluminum Motorcycle Gas Tank

Q: What are the different methods of surface inspection for steel coils?: Steel coils can undergo surface inspection using various methods, each with its advantages and limitations. Among the commonly used techniques are: 1. Visual Inspection: Inspectors visually examine the steel coil surface for defects like scratches, dents, or discoloration. Though subjective and reliant on inspector expertise, this method proves cost-effective for detecting obvious defects. 2. Magnetic Particle Inspection (MPI): This method involves applying a magnetic field to the coil and then iron particles on the surface. Disruptions in the magnetic field caused by defects or cracks gather the particles, making the flaws visible. MPI effectively detects surface cracks and defects not easily seen by the naked eye. 3. Eddy Current Testing (ECT): ECT, a non-destructive testing method, employs electromagnetic induction to identify surface defects in steel coils. A probe with a coil generates an alternating magnetic field near the coil surface. Changes in electrical conductivity or magnetic permeability due to surface defects lead to a change in the induced current, which can be analyzed. ECT successfully identifies cracks, corrosion, and other surface irregularities. 4. Ultrasonic Testing (UT): High-frequency sound waves are used to examine both the surface and subsurface of steel coils. A transducer sends ultrasonic waves into the steel, and the reflected waves are analyzed to detect material changes or anomalies. UT effectively identifies cracks, delaminations, or voids within the coil, providing valuable insights into the steel's structural integrity. 5. Optical Inspection: This technique utilizes advanced imaging techniques like cameras or laser scanners to capture high-resolution images of the coil surface. These images are then analyzed for defects such as scratches, pits, or irregularities. Optical inspection provides detailed information and is often used alongside other methods for a comprehensive inspection. It is important to note that each method has its limitations and may be more suitable for specific defect types or surface conditions. Therefore, a combination of these techniques is often employed to ensure a thorough and accurate inspection of steel coils.

Q: What are the different types of steel coil cutting blades?: Various types of steel coil cutting blades exist, each specifically designed for particular cutting purposes. 1. Slitting Blades: These blades are utilized to cut steel coils into narrow strips. They possess a straight cutting edge and come in different widths to accommodate various slitting needs. Industries like automotive, construction, and metal fabrication commonly employ these blades. 2. Shearing Blades: These blades are created to cut steel coils into flat sheets. They feature a curved cutting edge that enables a clean and precise cut. Steel service centers, where large coils are transformed into flat sheets for further manufacturing processes, frequently utilize shearing blades. 3. Circular Blades: Also known as rotary blades, these blades are employed for continuous cutting of steel coils. With a circular shape adorned with sharp teeth along the edge, they can effectively cut through the coil as it passes through the cutting machine. Industries such as packaging, printing, and paper manufacturing often make use of circular blades. 4. Guillotine Blades: These blades are employed to cut steel coils in a straight downward motion. Possessing a vertically moving straight cutting edge, they can effectively slice through the coil. Guillotine blades are frequently used in heavy-duty cutting applications that involve thick steel coils or large quantities of material. 5. Slitter Knives: Similar to slitting blades, slitter knives are typically smaller and employed in slitting machines that require multiple blades. Industries requiring high-precision slitting, such as electrical transformer production or precision metal stamping, often rely on slitter knives. Each type of steel coil cutting blade possesses unique characteristics and designs that render them suitable for specific cutting tasks. The appropriate blade selection depends on factors like steel coil thickness and width, desired cut quality, and specific application requirements.

Q: What are the different methods of coil slitting for steel coils?: There are several different methods of coil slitting for steel coils, each of which serves a specific purpose and is used in different industries. Here are some of the common methods: 1. Rotary shear slitting: This is the most widely used method for coil slitting. It involves using a set of rotating knives to cut the steel coil into smaller strips. The rotary shear slitting method is known for its high speed and accuracy, making it ideal for large-scale production. 2. Loop slitting: In this method, the steel coil is fed through a loop control system that maintains a constant tension. The coil is then cut into strips using a rotating knife. Loop slitting is commonly used for thinner gauge materials and is known for its ability to produce clean, burr-free edges. 3. Oscillating shear slitting: This method involves using a set of oscillating knives to cut the steel coil. The knives move back and forth in a rapid motion, creating a shearing effect that cuts through the coil. Oscillating shear slitting is often used for thicker gauge materials and can handle higher tensile strengths. 4. Crush cut slitting: Crush cut slitting is a method where the steel coil is cut by pressing a circular blade against the coil. The blade crushes the material, creating a cut. This method is commonly used for softer materials or when edge quality is not critical. 5. Slit edge rolling: Slit edge rolling is a method that involves rolling the edges of the steel coil after it has been slit. This process smooths out the edges and improves the overall appearance of the strips. Slit edge rolling is often used for applications that require a high-quality finish. 6. Laser slitting: Laser slitting is a newer method that uses a laser beam to cut through the steel coil. This method is precise and can handle a wide range of thicknesses. Laser slitting is commonly used for high-precision applications where edge quality is critical. These are just a few of the different methods of coil slitting for steel coils. The choice of method depends on factors such as the thickness and tensile strength of the material, the required edge quality, and the intended application of the slitted strips.

Q: Hey everyone.I have a whetstone and a honing steel. I purposely tried to make one of my knives less sharp twice to see how well the whetstone and honing steel would work.It even seemed that when I was using my whetstone it wasn't as sharp as it was when I used my honing steel, but when I also used my honing steel after having sharpened my knife on the whetstone, it was razor sharp.I was wondering, is the whetstone only supposed to be used when the knife edge isn't as flat anymore or something? Like, only when it doesn't really have an edge anymore?Please explain your answer.Thanks everyone.: You're not supposed to use the whetstone alone. It leaves a burr, which the steel removes. If you google using a whetstone, you'll see plenty of info. It is possible to use a finer stone in place of the steel.

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