Galvanized Stee l in Coil High Quality System 1

Galvanized Stee l in Coil High Quality

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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:

Steel Specification:

Thickness: 0.2-3.0mm

Width: 600-1500mm

Coating Mass: Z08，Z12，Z18，Z20，Z22，Z25，Z27，Z35

Z80，Z120，Z180，Z200，Z220，Z250，Z275

Tolerance for thickness,width,flatness and so on conform to the requirements of JIS G3302 or ASTM A653M/924M

Coil ID can be either 508mm or 610mm, maximum coil OD is 2000mm

The speicfication of ASTM Such as A653m,A924 M and so on have been updated to the latest revisions

Application:

BUILDING & CONSTRUCTION

Floor decks, ceilings, verandas, rolling doors, warehouse, partitions, sheds, gutters, wall, underground piping, sashes, beams, fences, scaffolding, indoor decorations, ducts, ventilating pipes, steel frames and cable trays.

ELECTRICAL APPLIANCES

Freezers, video recorder cases, motor cases, lighting fittings, water heaters, washing machines, refrigerators, stoves, air conditioners, dehumidifiers, fluorescent light housings, electrical heaters, toasters, microwave oven enclosures and switch boxes.

TRANSPORTATION

Containers, under body panels, bus & truck body panels, fuel tanks, noise screens, highway signs, air cleaners, conveyor systems and guard rails.

AGRICULTURAL EQUIPMENT

Barns, drying machines, animal houses, hoppers, irrigation systems, greenhouses, water tanks, sheds, silos, agricultural implements and feeders.

FURNITURE & OTHERS

Vending machines, drums, cans, pails, sauna inner parts, chimney pipes, entertainment machines, solar collectors, office equipment, steel furniture, tool boxes, garages and waste bins.

COMPUTER'S APPLIANCES

Computer shells and communication instruments。

Surface Treatment:

Chromating treatment or anti-finger print

Surface Finished:

REGULAR SPANGLE:

Regular spangle is also called normal spangle which is naturally formed without any additional treatment during galvanizing.

MINI SPANGLE:

The spangle is restrained and formed as mini spangle by reducing the lead content in the zinc liquid or by blowing the zinc powder from the equipment installed on the zinc pot.

EXTRA SMOOTH:

The mini spangle is further skin-passed to produce the extra smooth surface.

Q: How are steel coils used in the production of metal enclosures?: Steel coils are widely used in the production of metal enclosures due to their versatility and strength. These coils, which are typically made from high-quality steel, serve as the primary raw material for manufacturing metal enclosures. Firstly, the steel coils are unrolled and flattened to the desired thickness using specialized machinery. This process ensures that the coils are in a suitable form for further processing. The flattened steel is then cut into specific sizes and shapes, depending on the design requirements for the metal enclosure. Next, the cut steel pieces are formed into the desired shape using various techniques such as bending, folding, and welding. These processes allow the steel to be molded into the required dimensions and structure of the metal enclosure. The inherent strength and durability of the steel coils ensure that the final product is sturdy and can withstand external forces or impacts. Additionally, steel coils can be coated with protective layers such as galvanization or powder coating to enhance their resistance to corrosion, rust, or other environmental factors. This coating helps to prolong the lifespan of the metal enclosure and maintain its aesthetic appeal. Moreover, the use of steel coils in the production of metal enclosures allows for customization and flexibility. The coils can be easily manipulated to create complex shapes or designs, enabling manufacturers to cater to specific customer requirements. This adaptability makes steel coils a preferred choice in industries such as automotive, electronics, and construction, where metal enclosures are widely used. In summary, steel coils play a crucial role in the production of metal enclosures by providing a strong and versatile raw material. These coils are transformed into the desired shape and size, ensuring the durability and functionality of the enclosures. With their customizable nature and protective coatings, steel coils offer a cost-effective solution for manufacturing high-quality metal enclosures.

Q: What is the role of steel coils in HVAC systems?: Steel coils are an essential component in HVAC systems as they act as heat exchangers, allowing for efficient transfer of heat between the refrigerant and the surrounding air. They help to cool or heat the air as it passes through the system, contributing to the overall temperature control and comfort in indoor spaces.

Q: What are the dimensions of a steel coil?: The dimensions of a steel coil can vary depending on its intended use and manufacturer. However, typical dimensions include a width ranging from 600mm to 2,200mm, a diameter of 600mm to 2,000mm, and a weight ranging from a few hundred kilograms to several metric tons.

Q: Can steel coils be coated with zinc?: Yes, steel coils can be coated with zinc through a process called galvanizing. This coating provides protection against corrosion and increases the durability and longevity of the steel coils.

Q: How do steel coils contribute to the aerospace manufacturing industry?: Steel coils are essential in the aerospace manufacturing industry as they are used to produce various components, such as aircraft bodies, wings, and landing gear. These coils provide the necessary strength, durability, and resistance to extreme conditions required for aerospace applications. Additionally, steel coils can be easily shaped and welded, enabling manufacturers to create complex and precise structures, thereby enhancing the safety and efficiency of aircraft.

Q: What are the benefits of using stainless steel coils?: Using stainless steel coils in various applications offers multiple advantages. Firstly, stainless steel coils are renowned for their exceptional strength and durability, making them highly resistant to corrosion, rust, and stains. As a result, they can withstand harsh environmental conditions, both indoors and outdoors, ensuring their longevity and reducing the need for frequent replacements, ultimately saving costs in the long term. Furthermore, stainless steel coils provide excellent heat resistance, as they can endure high temperatures without warping or compromising their structural integrity. This makes them ideal for applications involving extreme heat or thermal cycling, such as industrial furnaces or heating systems. Another benefit of utilizing stainless steel coils lies in their versatility. Stainless steel is a highly adaptable material that can be easily molded into various shapes and sizes, allowing for customization and flexibility in design. Consequently, stainless steel coils can meet specific requirements across different industries, including construction, automotive, aerospace, and household appliances. In addition to their physical properties, stainless steel coils are favored for their hygienic qualities. Being non-porous, stainless steel resists bacteria, mold, and other contaminants, making it an excellent choice for applications demanding strict cleanliness and hygiene standards, such as the food and beverage industry or medical equipment. Lastly, stainless steel coils are environmentally friendly. They can be fully recycled, melted down, and repurposed to create new products, reducing waste and conserving resources. This sustainability aspect makes stainless steel coils an eco-conscious choice for numerous industries. Overall, the benefits of utilizing stainless steel coils encompass their strength, durability, heat resistance, versatility, hygiene, and environmental friendliness. These qualities make stainless steel coils a reliable and cost-effective solution for a wide range of applications.

Q: How are steel coils used in the production of metal shelving?: Steel coils are an essential component in the production of metal shelving. These coils, which are made from high-quality steel, undergo a series of manufacturing processes to transform them into sturdy and durable shelves. Firstly, the steel coils are unwound and flattened to the desired thickness using a machine called a slitter. This process ensures that the coils are of uniform size and thickness, which is crucial for producing consistent and reliable shelves. Next, the flattened steel is cut into specific lengths using a shear. These cut-to-size pieces are then sent to a press brake, where they are bent and shaped into the desired shelf design. The press brake applies pressure to the metal, allowing it to be folded or formed into different angles and shapes, such as shelves with raised edges or adjustable brackets. Once the shelves have been formed, they go through a process called welding, where any joints or seams are securely fused together. This welding process ensures the structural integrity of the shelves, making them capable of supporting heavy loads and maintaining their shape over time. After welding, the shelves undergo surface treatment to enhance their appearance and protect them from corrosion. This can include processes such as cleaning, sandblasting, and painting. The surface treatment not only improves the aesthetic appeal of the shelves but also extends their lifespan by preventing rust and other forms of deterioration. Finally, the shelves are inspected for quality control to ensure that they meet the necessary standards. This includes checking for any defects, measuring dimensions, and conducting load-bearing tests to ensure the shelves are capable of withstanding the intended weight capacity. In summary, steel coils are used in the production of metal shelving by being unwound, flattened, cut, bent, welded, treated, and inspected. These coils provide the raw material necessary to create strong, durable, and aesthetically pleasing shelves that can be used in various settings such as warehouses, retail stores, and homes.

Q: What are the common methods of inspecting steel coils for defects?: Inspecting steel coils for defects involves several commonly used methods. These methods encompass visual inspection, ultrasonic testing, magnetic particle inspection, and eddy current testing. Visual inspection, the most basic method, entails physically examining the steel coil's surface for noticeable defects like cracks, dents, or irregularities. Typically, this initial step in the inspection process promptly identifies any obvious defects. Ultrasonic testing, a more advanced method, employs high-frequency sound waves to detect defects within the steel coil. Ultrasonic waves are transmitted into the coil via a probe, and any internal flaws or defects reflect the waves back to the probe. This method effectively identifies defects such as voids, cracks, or inclusions. Magnetic particle inspection is another commonly utilized method. It involves magnetizing the coil and applying iron particles to the surface. Defects or cracks disrupt the magnetic field, attracting the iron particles and making them visible. This method is particularly effective for surface cracks or defects. Eddy current testing is a non-destructive method utilizing electromagnetic induction to detect defects in the steel coil. By generating an alternating magnetic field using a probe, any changes in the material's electrical conductivity or magnetic permeability due to defects generate eddy currents. These eddy currents can be measured and analyzed to identify defects like cracks, voids, or changes in material properties. In summary, these common methods offer varying levels of accuracy and sensitivity in inspecting steel coils for defects, ensuring their quality and integrity. The choice of method depends on factors such as the type and size of defects to be detected, the required level of inspection accuracy, and the time and cost limitations of the inspection process.

Q: How do steel coils affect the quality of finished products?: Steel coils can have a significant impact on the quality of finished products. Their quality, including dimensions, surface condition, and mechanical properties, directly affects the final product's strength, durability, and appearance. Coils with inconsistent dimensions or surface defects can lead to uneven or weak finished products. Similarly, if the mechanical properties of the coils do not meet the required specifications, it can compromise the performance and functionality of the end product. Therefore, ensuring the high quality of steel coils is crucial for achieving superior finished product quality.

Q: Cooling bed generally a part of the steel rolling mills: In the USA, a steel cooling bed is called a run-out table. It consists of a series of steel rolls. Each roll may be individually driven by an electric motor. DC motors are often used with parallel armatures connected to a common armature voltage control speed control unit. The roll speed is controlled to match the speed of the incoming sheet of steel so that the steel does not slide or skid on the surface of the rolls. Field trim resistors help to assure that the speed and torque of rolls is matched. A centering mechanism may be used to keep the steel in the center of the table. Water may be sprayed from the top and bottom to aid cooling. After an initial run out table, the strip of steel may be cut on-the-fly into individual sheets which pass to another table that is running slightly faster to separate the sheets. Alternatively, the steel may be coiled at the end of the table.

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