galvanized steel coil

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 8000 m.t. m.t./month

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Grade: SGH340, DX51D and SGCC (customized)
Surface treatment: passivation, oiling, chromed, unoiled
Spangle types: minimal, zero and large
Thickness: 0.37 to 3.5mm
Width: greater than 1,000mm
Inner diameter: 508 to 610mm
Zinc coating: greater than 80g/m²
Applications:
- Construction, home appliance, hardware and machinery
Standards:
- JIS g3302 1998, ASTM a653 2003, EN10142 1990
- EN10327 2004, AS1397 2001, GB2518-2004
Packing: export packing/sea worthy for international delivery

Q: What are the different methods of punching steel coils?: For punching steel coils, there are several methods available that vary depending on specific requirements and desired outcomes. The following are some commonly used methods: 1. Mechanical Punching: To create holes in the steel coil, a mechanical press is employed. This method involves utilizing a punch and die set, where the coil is subjected to force from the punch to create the hole. Mechanical punching is best suited for small to medium-sized holes and finds frequent use in high-volume production settings. 2. Hydraulic Punching: In hydraulic punching, hydraulic pressure is utilized to drive the punch into the steel coil. This method is commonly employed for punching larger holes or shapes that demand greater force. Hydraulic punching machines offer precise control and can handle thicker and harder materials. 3. Laser Cutting: Laser cutting is a non-contact technique that employs a laser beam to cut through the steel coil. By directing a focused laser beam onto the coil, the material is melted and evaporated to form the desired shape or hole. Laser cutting provides high precision and can be used for complex shapes and patterns. 4. Plasma Cutting: Plasma cutting involves the use of a high-velocity jet of ionized gas (plasma) to melt and remove the steel coil material. This method is suitable for cutting thicker steel coils and is often employed for larger holes or irregular shapes. 5. Waterjet Cutting: Waterjet cutting uses a high-pressure jet of water mixed with abrasive particles to cut through the steel coil. This method is versatile and can effectively cut various materials, including steel. Waterjet cutting is renowned for its high precision and clean cuts. Each method of punching steel coils possesses its own advantages and considerations. Factors such as material thickness, desired precision, production volume, and cost will determine the most suitable method for a specific application.

Q: What are the safety precautions when working with steel coils?: When working with steel coils, it is important to follow several safety precautions. Firstly, workers should wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toe boots to protect themselves from potential injuries. Additionally, they should ensure that the work area is well-lit and free from any trip hazards. Proper lifting techniques should be used to prevent strains or sprains, and workers should be trained on how to safely operate any machinery or equipment involved in handling the coils. Regular inspections of the coils, checking for any defects or damages, should also be conducted to avoid accidents. Lastly, workers should be aware of the potential hazards associated with working with steel coils, such as sharp edges, pinching points, and the risk of heavy objects falling, and take necessary precautions to minimize these risks.

Q: Consider a steel rod of diameter 4.5 mm and length 3.3 m. If a compressive force of 4900 N is applied to each end, what is the change in the length of the rod?: You need to calculate the stress on the rod and compare this with the mechanical properties of the steel. It would help if you were given more info. You will need to know something about the steel such as the yeild stress and E, the modulus of elasticity. The value of E is about the same for a wide range of steels. So long as the applied stress is below the yield stress, the strain is all elastic and is calculated from E. The real answer is that you can not answer this question since you do not know what the temperature is. Given the applied load, the change in length will be much different at room temperature than at 1500C.

Q: which pokemon has the most steel pokemon???: Probaly Pokemon Platinum or Pokemon HGSS

Q: What are the different methods of laminating steel coils?: There are several different methods of laminating steel coils, each with its own advantages and applications. The most common methods include hot rolling, cold rolling, and continuous annealing. Hot rolling is a process in which steel is heated above its recrystallization temperature and then passed through a series of rollers to produce thin sheets or coils. This method is commonly used for producing large quantities of steel with a consistent thickness and surface finish. Hot rolled steel coils are often used in structural applications, such as construction and automotive manufacturing. Cold rolling, on the other hand, involves passing the steel coil through a series of rollers at room temperature. This process not only reduces the thickness of the steel but also improves its surface finish and mechanical properties. Cold rolled steel coils are typically used in industries that require high precision and quality, such as appliance manufacturing, electrical equipment, and automotive components. Continuous annealing is another method of laminating steel coils. It involves heating the steel coil to a specific temperature and then slowly cooling it in a controlled environment. This process helps to relieve internal stresses and improve the steel's mechanical properties, such as strength and ductility. Continuous annealing is often used for producing high-quality steel coils for applications that require superior surface finish and formability, such as automotive body panels and household appliances. Other less common methods of laminating steel coils include electro-galvanizing, which involves coating the steel with a layer of zinc through an electroplating process, and hot-dip galvanizing, where the steel coil is dipped into a bath of molten zinc. These methods are primarily used for corrosion protection and are commonly seen in the construction industry, particularly for outdoor structures and infrastructure. In summary, the different methods of laminating steel coils include hot rolling, cold rolling, continuous annealing, electro-galvanizing, and hot-dip galvanizing. Each method offers distinct benefits and is chosen based on the specific requirements of the application.

Q: What are the common quality issues with steel coils?: Steel coils commonly have quality issues including surface defects, dimensional variations, mechanical property variations, coating issues, internal defects, edge issues, and coil set or camber. These issues can impact the appearance, performance, processing, and suitability of the final product. To maintain quality, manufacturers employ rigorous inspection, testing, and adherence to industry standards and specifications.

Q: How is it used easy 10 points just tell me how its used or any intersting facts this is for my comp science paper lol. I know what the hell does steel have to too do with computers he is a Fg! Please be descriptive THANKS! FAST ANSWERS TOO it 9pm bedtime for a 14 year old lol..: steel is used for cars and trains. one of the largest steel manufacturers is in my town its called CarTech its in reading pa.

Q: What are the pros and cons of non-stick and stainless steel pots and pans ?Thanks: Non Stick is good for frying, sauteeing, etc., but I find they don't tend to last as long as regular stainless steel pans because they can get scratched relatively easy if you use metal stirring utensils. Stainless steel is good for soups, stews, or if you plan to use a metal stirring utensil (whisk, fork, etc.). I use both non-stick and stainless steel pots and pans. I think the most useful pots/pans I have are my medium-sized, non-stick frying pan and my small, stainless steel dutch oven.

Q: How are steel coils tested for tensile strength?: Steel coils are tested for tensile strength through a process called tensile testing. In this method, a small sample is taken from the steel coil and subjected to a controlled force until it breaks. The force applied during the test is gradually increased until the sample fractures. The maximum force required to break the sample is measured, and this provides valuable information about the tensile strength of the steel coil.

Q: How are steel coils manufactured?: Steel coils undergo a series of procedures that convert raw materials into the end product. The manufacturing journey commences with the extraction of iron ore, which is later smelted in a blast furnace to yield pig iron. The pig iron is then refined in a basic oxygen furnace to eliminate impurities and regulate the carbon content. Once the molten steel is acquired, it is continuously molded into substantial slabs or billets. These slabs are subsequently rolled into thinner sheets or strips through hot rolling. This process entails passing the steel through a sequence of high-pressure rollers that reduce its thickness and shape it to the desired dimensions. Simultaneously, the steel undergoes treatment to enhance its mechanical attributes, such as strength and hardness. Following hot rolling, the steel is pickled and cleansed to eliminate any scale or impurities on its surface. It is then cold rolled to further decrease its thickness and improve its surface finish. Cold rolling necessitates passing the steel through a set of rollers at room temperature, thus augmenting its strength and dimensional accuracy. To form steel coils, the cold-rolled steel is typically tightly wound into a large coil shape. This is accomplished by feeding the steel strip through a sequence of rollers that gradually spiral it. Subsequently, the coils are typically annealed to alleviate internal stresses and enhance the material's formability. Lastly, the steel coils are coated or treated, depending on their intended application. This may involve the application of a protective coating, such as zinc or paint, to enhance corrosion resistance, or the provision of a specific surface treatment to improve adhesion in subsequent processes. All in all, the manufacture of steel coils is a multifaceted procedure encompassing stages such as smelting, casting, hot rolling, cold rolling, coiling, and surface treatment. Each step contributes to the quality and properties of the final product, ensuring that steel coils fulfill the required specifications for diverse industrial applications.

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