Pre-painted Galvanized/Aluzinc Steel Sheet Coil with Prime Quality and Lowest Price in Orange

Pre-painted Galvanized/Aluzinc Steel Sheet Coil with Prime Quality and Lowest Price in Orange

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 10000 m.t./month

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6.FAQ

1. What’s the application of this product?

Roof, roof structure, surface sheet of balcony, frame of window, etc.

Q: Hi, I live in the Boston area and I'm trying to find a steel suppler that can provide mild steel for hobby welding. I can go through my job, but we only put in orders every couple of months so it's not very convenient. Also, the few suppliers I've found only sell in bulk. So if anyone knows where I can angle irons, flat bars, sheets, etc... by the piece it would greatly appreciated. Thanks: They will sell any quantity of metal and even cut it to size - my experience has been that their prices are not wildly out of line for single pieces of full length stock compared to buying singles where you have to buy a minimum. They also may have sizes that ordinary places consider odd. I was looking for 5/8 square 16 gauge and was told it would have to be shipped in from Houston (to Dallas) by my nearest supplier and found it in stock at MetalSM. But check if you get something odd - the 5/8 cost more than 3/4 at both places and MetalSM actually gave me 3/4 but took it back even though I had cut it. Also check the regular steel suppliers in your area as well as retail welders metal supply places.

Q: Help me compare the speed of sound in air, water, and steel please?Thanks.: Sound travels fastest in steel and slowest in air. Water is in between. This is because the particles in solids are closer together than the particles in liquids or gases, and the particles in liquids are closer together than the particles in gases. The tighter particles are packed in a space, they collide more frequently. This allows sound, which is simply the combined collisions of particles, to travel fastest in solids. So, to reiterate, sound travels fastest in steel, then water, and slowest in air.

Q: What are the factors affecting the price of steel coils?: The factors affecting the price of steel coils include the cost of raw materials, such as iron ore and coal, as well as energy prices and transportation costs. Other factors include market demand and supply dynamics, global economic conditions, currency exchange rates, government regulations, and tariffs. Additionally, technological advancements, production capacity, and competition within the steel industry can also influence the price of steel coils.

Q: What are the different methods of shearing steel coils?: There are several different methods of shearing steel coils, each offering its own unique advantages and disadvantages. Some of the most common methods include: 1. Guillotine Shearing: This method involves using a guillotine-like machine with a blade that moves vertically to cut through the steel coil. Guillotine shearing offers high efficiency and accuracy, making it suitable for large-scale industrial production. However, it may cause deformation or burrs on the cut edges. 2. Rotary Shearing: In rotary shearing, a set of rotating blades is used to cut through the steel coil. This method allows for continuous cutting, making it ideal for high-speed production lines. It provides a clean and precise cut, but it requires regular maintenance and sharpening of the blades. 3. Slitting: Slitting involves passing the steel coil through a set of circular blades that make multiple parallel cuts. This method is commonly used to produce narrower strips from wider coils. It offers high precision and can produce multiple strips simultaneously. However, slitting may cause edge burrs or camber on the strips. 4. Laser Cutting: Laser cutting uses a high-powered laser beam to melt or vaporize the steel coil along a pre-determined path. This method offers exceptional precision and can cut complex shapes or patterns. It is commonly used for specialized applications where accuracy is crucial, although it can be relatively expensive. 5. Waterjet Cutting: Waterjet cutting utilizes a high-pressure stream of water mixed with abrasive particles to cut through the steel coil. This method is versatile and can handle various materials and thicknesses. It is especially useful for cutting heat-sensitive materials or for applications requiring minimal distortion. 6. Plasma Cutting: Plasma cutting involves ionizing a gas to create a plasma arc that melts and blows away the steel coil. This method is fast and efficient, suitable for cutting thick steel coils. However, it may produce a wider heat-affected zone compared to other methods. 7. Electrical Discharge Machining (EDM): EDM uses electrical discharges to erode the steel coil and create the desired shape. This method is commonly used for intricate or delicate cutting tasks that require high precision. It is particularly effective for hard materials. Each method of shearing steel coils has its own set of advantages and limitations, and the choice depends on factors such as the required precision, speed, material thickness, and the desired end-product.

Q: What are the common challenges faced in steel coil production?: Some common challenges faced in steel coil production include ensuring consistent quality and thickness of the coil, maintaining efficient production rates, managing inventory and storage of coils, addressing issues related to coil surface defects and handling, and adhering to strict safety regulations. Additionally, fluctuations in raw material prices and market demand pose further challenges for steel coil producers.

Q: I understand that Stainless Steel is a low carbon steel having minimum 10.5% chromium content in it there r 60 different type of stainless steel. Kindly informa) Is this info correct?????b) Which stainless steel can get rusted or can have superficial rust????: Stainless steel is a generic term for a whole range (there are more than 60 types) of Fe-Cr alloys. They all contain some amount of C and some alloys include a good number of other alloying elements. In almost all cases, the materials have corrosion resistance due the Cr atoms that are in solid solution with the Fe matrix. Under corrosive conditions, the Cr forms a thin tight coherent layer of Cr-oxide. This Cr oxide coating prevents further corrosion so long as it is not chemically or physically removed. If the SS has been subject to mechanical abrasion, the corrosion resistance can sometimes be restored by a light exposure to nitric acid which passivates the surface, restoring the Cr-oxide layer. The carbon content is an important factor in corrosion preformance but so is the heat treatment. Under the wrong conditions and in different environments, all SSs can rust. One of the most common corrosion problems is sensitization which occurs in the heat affect zone (HAZ) around welds. If the C content is high enough and the heat is high enough, the Cr atoms in solid solution form Cr-carbides and are no longer available to form a protective Cr-oxide. The corrosion resistance can be restored by appropriate heat treatment.

Q: How are steel coils inspected for weldability using welding tests?: Steel coils can be inspected for weldability using various welding tests. One common method is the bend test, where a sample of the coil is bent to evaluate the ductility and resistance to cracking. Another test is the tensile test, which measures the strength and elongation of the steel under tension. Additionally, the charpy impact test assesses the steel's toughness by measuring its ability to absorb energy during impact. These tests help determine the suitability of the steel coils for welding applications and ensure the quality of the welds.

Q: How are steel coils used in the production of automotive frames?: Steel coils are used in the production of automotive frames by being unwound and fed into a machine that shapes and welds the steel into the desired frame structure. The high-strength and durability of steel make it an ideal material for automotive frames, providing structural integrity and safety to the vehicle.

Q: How do steel coils perform in high-temperature applications?: Steel coils perform well in high-temperature applications due to their excellent heat resistance and structural stability. The high melting point of steel allows it to maintain its strength and shape even at elevated temperatures, making it suitable for various industries such as automotive, construction, and manufacturing. Additionally, steel coils can withstand thermal expansion and contraction without warping or deforming, ensuring reliable performance and durability in extreme heat conditions.

Q: How are steel coils coated to prevent rust and corrosion?: Steel coils are coated to prevent rust and corrosion through a process called galvanization, wherein a layer of zinc is applied to the surface. This zinc layer acts as a sacrificial barrier, protecting the steel from exposure to moisture and oxygen, thereby preventing rust and corrosion.

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