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galvanized steel coils

galvanized steel coils

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Galvanized steel coils

1) Quality Standard & Grade: JIS G3302, SGCC /  ASTM  653M  CQ/  EN10142 DX51D+Z

2)  Thikness  tolerance: +/-0.02mm Width tolerance:+/0.02mm

3) Zinc coating weight: 50g/m2

4) WEIGHT OF PER COIL: 3-5MT                          

5)Technology: cold rolled

6) Surface of Product: regular spangle / big spangle/ small spangle; Surface Treatment: chromated , non oiled, skin passed

7) Packing: export standard packing,packed with moisture resistant paper and metal

wrapping,securely tied for export,on metal skids7) Country of Origin :China


SIZE:0.35*914

Q: What are the industries that consume the most steel?
Costuuction and auto are most likely the top two.
Q: Hi, I would like to know if steel is an important material in desalination plants. If it is, could you specify what type of steel is used (i.e. flat steel products, long steel products, etc). Thanks.
yes stainless steel pipes
Q: a concrete or steel building?also, what is the density of concrete and steel? is concrete heavier in steel for the same volume?
minorchord2000 an engineer using a non-metric measuring system - it's priceless
Q: What are the challenges in coil leveling for coated steel?
To achieve high-quality, flat, and smooth coils, several challenges must be addressed in the process of coil leveling for coated steel. The first challenge lies in the potential damage to the coating during leveling. Coated steel coils are typically covered with materials like zinc or paint, which are susceptible to scratching or marring if mishandled. The leveling process involves passing the coil through a series of rolls, which can cause friction, abrasion, or other mechanical harm to the coating. Therefore, it is crucial to meticulously control the speed, pressure, and alignment of the rolls to minimize coating damage. The second challenge stems from the variations in thickness across the coil. Coated steel coils often exhibit thickness discrepancies due to inherent material properties or production methods. These variations can lead to uneven leveling, resulting in coils with waviness or inconsistent flatness. Achieving uniform leveling across the entire coil surface is vital to ensure consistent quality and appearance of the final product. Another challenge in coil leveling for coated steel is the possibility of shape distortion. The coating processes can introduce stresses into the steel, causing the coil to warp or distort during leveling. This distortion can lead to coils with irregular edges or uneven flatness. Proper control of leveling process parameters, such as the number of passes and applied tension, is necessary to minimize shape distortion. Furthermore, the coil leveling process can generate internal stresses in the steel, especially in cold-rolled or heat-treated coated steels. These internal stresses can result in coil spring-back, where the coil attempts to revert to its original shape after leveling. Spring-back can cause coils with undesired curvature or inconsistent flatness. Effective strategies, such as stress relief annealing or employing counteracting leveling techniques, are essential to minimize spring-back and achieve the desired flatness. Lastly, handling and storing coated steel coils pose challenges in maintaining the quality of the leveled coils. Coated steel coils are sensitive to environmental conditions, such as humidity, temperature, and exposure to corrosive substances. Proper storage and handling practices are crucial to prevent coating damage, rust, or other forms of deterioration that can occur during transportation or storage. In conclusion, the challenges in coil leveling for coated steel involve minimizing coating damage, addressing thickness variation, controlling shape distortion and spring-back, and ensuring proper handling and storage. Overcoming these challenges necessitates precise control of process parameters, the application of suitable leveling techniques, and strict adherence to quality control measures throughout the entire process.
Q: Can someone help me...i have a diagram and were supposed to calculate the steel tonnage needed for the pictre. Can someone tell me step by step what i need to do (ex:find area of ...)
- Find the cross sectional area of the steel bars if given, if not find the volume of concrete and approximately multiply the concrete volume by 400kg the weight of steel per concrete volume. - If you find the steel cross sectional area , multiply by the
Q: How do steel coils withstand extreme temperatures?
The unique composition and manufacturing process of steel coils enable them to endure extreme temperatures. Steel, the primary material in coils, consists of iron and carbon, forming an alloy with exceptional thermal properties. With a high melting point of up to 2,500 degrees Fahrenheit (1,370 degrees Celsius), steel remains structurally stable even in intense heat. Additionally, the annealing process is commonly applied to steel coils. This involves heating the steel to a specific temperature and gradually cooling it down. By relieving internal stresses, annealing enhances the steel's resistance to thermal expansion and contraction. It also reduces internal defects, thereby improving the overall strength and durability of the steel, enabling it to better withstand extreme temperatures. Furthermore, protective coatings are often applied to steel coils to provide additional resistance against temperature fluctuations. These coatings, such as galvanized or zinc coatings, act as a barrier between the steel and the external environment. They effectively prevent oxidation, corrosion, and other forms of degradation that can occur when exposed to extreme heat or cold. In conclusion, the ability of steel coils to withstand extreme temperatures can be attributed to the inherent properties of steel, the annealing process that relieves internal stresses, and the protective coatings that offer an extra layer of resistance. These factors work in harmony to ensure that steel coils maintain their structural stability and performance, even in the most challenging temperature conditions.
Q: can anyone tell me the way to bring back the shine to the stainless steel kitchen sink . It has become dull.
A stainless steel kitchen sink is durable, easy to keep clean and disinfect, and will only grow more beautiful with age - if you take proper care of it. Clean the sink with soapy water, or a stainless steel cleaner (Spray N Sheen Stainless Steel Cleaner/Polish/Protectant) once or twice a week. Once or twice a month, fill the sink half full with a 50/50 solution of bleach and water or a special stainless steel cleaner (Stainless Steel Cleaner). Let it soak for about 15 minutes, then wash the sides and bottom and let it drain. Remember to wipe dry when done.
Q: I expect that I will be questioned about my knowledge in methoding for steel castings, in a interview. I dont know about it. Can someone explain me in simple language and give me some links, like how I can explain methoding for steel castings.....key points...help please...so that i will pass the interview as if I have experience in methoding....thanks
It is very difficult to define Methoding of Steel castings by one sentence. Actually it encompasses the total casting process. Normally it would mean a) Pattern design i.e. what type of pattern it would be- wooden, metallic, split or full, loose or fitted on a match plate or any other, how will be the parting line. b) Design of the gating system. c) Design of risering i.e. numbers, size and location of risers. d) Design of molding process i.e. sand system to be used, mold box size. But to do justice to the above mentioned activities, you need to consider other parameters of the casting process such as chemical composition, solidification characteristics, pouring temperature, pouring time, knock out time etc. As I said Methoding of Steel castings means designing of the total casting process from inception to final product.
Q: How do steel coils contribute to the automotive aftermarket?
Steel coils contribute to the automotive aftermarket by serving as a crucial raw material for manufacturing various components used in vehicles. These coils are responsible for providing strength, durability, and structural integrity to parts like body panels, chassis components, suspension systems, and exhaust systems. Additionally, steel coils are also used in the production of aftermarket accessories such as bumpers, grilles, and custom body kits. Their availability and versatility make steel coils an essential resource for the automotive industry, enabling the production of high-quality aftermarket products that enhance the performance and aesthetics of vehicles.
Q: aLSO, DOES STEEL C45 REFER TO THE CARBON IN IT?ALSO, WHAT IS AIRCRAFT GRADE PLYWOOD AND WHERE DOES ONE GET IT
chromium nickle steel aka stainless steel exact amount of chrome and nickle will determine type/grade numbers Check the google for steel type/grade Never head of aircraft grade, however,, there is marine grade - normally baltic birch with waterproof glue and no defects i.e. knots, etc. Very strong (also quite expensive) but worth it for the correct applications

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