JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY

JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 1

JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY System 2

JIS G 3302 GALVANIZED STEEL COILS WITH HIGH QUALITY

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25.00 m.t.

Supply Capability:: 10000 m.t./month

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Packaging & Delivery

Packaging Detail: seaworthy export package

Delivery Detail: on request

Specifications

1. more than 10 years’ experience on this field

2. advanced equipments

3. competitive price

4. soonest delivery

Product Description :

Commodity

Hot dip galvanized steel coil

Technical Standard: JIS 3302 / ASTM A653 / EN10143/ GB/T 2518

Grade：DX51D/ S250,280,320GD,SGCC,SGHC,SGH340,SGH400,SGH440,G450,G550

Types:Commercial / Drawing / Deep Drawing / Structural quality

Width: 900mm/1000mm/1219mm/1200mm/1220mm/1250mm

Thickness: 0.2mm~4.0mm

Type of coating: galvanized

Zinc coating: Z40-275g/m2,Z40-Z450g/m2

Surface treatment: zero spangle / regular spangle/ big spangle

ID coil: 508mm or 610mm

Coil weight: 3-10/MT per coil

Package: Properly packed for ocean freight exportation in 20''container

Application:: home appliances, constructions, building, machineries

Our Advantages :

1. Expertise:
   More than 10 years of manufacture: we know how to properly handle every step of production.
2. Competitive price:
We can offer competitive prices to our customers.
3.  Accuracy:
We have excellent technicians and leaders, which can ensure our products are exactly what you want.
4.  Materials:
All galvanized steel coils are made of high-quality raw materials.
5.  Certificate:
Our products are certified by ISO9001.
6. Productivity:
We have large-scales of production lines,, which can guarantee all your orders will    be finished in earliest time.

Hr CGL Technical Process:

Coil loading-> uncoiling-> cutting-> welding-> entry accumulator-> Heating and deoxidization-> galvanizing-> air cooling->water quenching-> air dryer-> tension leveler-> Passivation->air dryer->exit accumulator-> oiling-> cutting-> recoiling->coil unloading-> packing

The furnace heating style: improved Sendzimir heating technology

Hourly output: max.76.3t/h

Process after coating: tension leveling, Passivation or oiling

Our Service

Our quality

Test Equipments of Prepainted Galvanized Steel Coil : Salt-spray tester; Atomic absorption spectrophotometer; Rockwell typer hardness tester; Tensile test machine; Metrohm titration; Laboratory Bend test machine.

Our packing

Properly packed for ocean freight exportation in 20''container, galvanized metal fluted rings on inner and outer edges, galvanized metal & waterproof paper wall protection disk, galvanized metal & waterproof paper around circumference.

R&D department

R&D department concentrates on researching and developing reliable products with best quality. The quality department test and control every process of production to guarantee the best quality of products

Q: What are the different types of steel processing techniques for coils?: There are several types of steel processing techniques for coils, including hot rolling, cold rolling, annealing, pickling, and galvanizing.

Q: I have been searching on pots and pans, how can I find out if it's really stainless steel, someone told me if a magnet sticks to it it's real stainless steel is this true?: if a magnet sticks to it that means it's a cheaper metal coated with stainless steel. if it's an appliance you're buying, look on the reciept. real stainless steel will actually say it. the coated stuff will just say stainless leaving out the steel.

Q: What are the different types of steel coil slitting lines?: There are several different types of steel coil slitting lines that are used in the metal processing industry. These lines are designed to cut large coils of steel into narrower strips, which can then be used for various applications. 1. Loop Slitting Lines: Loop slitting lines are the most common type of slitting line used in the industry. They consist of a decoiler, which holds the coil, a slitter head that cuts the coil into strips, and a recoiler, which winds the strips back into smaller coils. Loop slitting lines are versatile and can handle a wide range of coil widths and thicknesses. 2. Scrap Chopper Slitting Lines: Scrap chopper slitting lines are similar to loop slitting lines but include a scrap chopper unit. This unit cuts any excess material from the edges of the coil before it is slit into strips. This helps to improve the efficiency of the slitting process and reduces waste. 3. Double Loop Slitting Lines: Double loop slitting lines are used for high-speed slitting of thin-gauge coils. They feature two looping pits, which allow for continuous operation. While one coil is being processed, the other is being prepared for slitting, ensuring minimal downtime. 4. Turret Head Slitting Lines: Turret head slitting lines are designed for high-volume production and can process multiple coils simultaneously. They feature a turret head with multiple slitter knives, which can be quickly rotated to switch between different coil widths. This allows for faster and more efficient production. 5. Rotary Shear Slitting Lines: Rotary shear slitting lines are used for thicker and harder materials. They use a rotary shear instead of a slitter head to cut the coil into strips. The rotary shear offers better cutting performance and can handle higher tensile strength materials. 6. Combination Slitting Lines: Combination slitting lines are versatile machines that can handle a range of materials and can perform both slitting and cut-to-length operations. These lines are ideal for smaller manufacturers or those who require flexibility in their production process. Overall, the type of steel coil slitting line used will depend on the specific requirements of the manufacturer, including the type of material being processed, the desired strip width, and the volume of production.

Q: Can steel coils be coated with anti-fingerprint materials?: Yes, steel coils can be coated with anti-fingerprint materials. These coatings are designed to reduce the visibility of fingerprints and smudges, making the steel coils more resistant to marks and easier to clean.

Q: What are the dimensions of steel coils used in the construction equipment industry?: The dimensions of steel coils used in the construction equipment industry can vary depending on the specific application and requirements. However, there are common standard dimensions that are often used. Steel coils used in the construction equipment industry typically have a width ranging from 600mm to 2000mm. The thickness of these coils can range from 0.5mm to 25mm or even higher, depending on the intended use and structural requirements. The weight of steel coils used in construction equipment industry can vary significantly, ranging from a few hundred kilograms to several tonnes. The weight is typically determined by the dimensions and thickness of the coil, as well as the specific grade and type of steel being used. It is important to note that these dimensions are not fixed and can be customized based on the specific needs of the construction equipment industry. Manufacturers and suppliers can provide steel coils in various dimensions to meet the specific requirements of construction equipment manufacturers and contractors.

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?: Steel is most common. Aluminum is lighter but it's harder to form, so more expensive. Plus it dents more easily. And you can't use a magnetic tank bag. I've seen stainless steel tanks but they were usually specially made.

Q: How are steel coils processed and shaped into different products?: Steel coils are processed and shaped into different products through a series of manufacturing processes. The first step in the process is called uncoiling, which involves unwinding the steel coil and straightening it. This is usually done by feeding the coil through a machine called a decoiler. Once the coil is uncoiled, it goes through a process called leveling. This is done to eliminate any unevenness or warping in the steel. The coil is passed through a set of rollers that apply pressure and flatten the steel to the desired thickness. This ensures that the steel is uniform and ready for further processing. After leveling, the steel is typically cut into smaller pieces or sheets. This is done using machines such as shears or slitters, which can cut the steel into different widths or lengths. The precise dimensions will depend on the requirements of the specific product being manufactured. Once the steel is cut, it can undergo additional shaping processes. One common method is called roll forming, where the steel is passed through a series of rollers that gradually shape it into the desired profile. This is often used to produce products such as roofing sheets, wall panels, or beams. Another common shaping process is called stamping. In stamping, the steel is pressed between a die and a punch to create complex shapes or patterns. This is commonly used in the automotive industry to produce components such as car body panels or engine parts. In addition to shaping, the steel may also undergo surface treatments or coatings to enhance its properties or improve its appearance. This can include processes such as galvanizing, where a layer of zinc is applied to protect the steel from corrosion, or painting to provide a decorative finish. Overall, the process of shaping steel coils into different products involves a combination of cutting, shaping, and surface treatments. These processes are carefully executed to ensure that the steel meets the required specifications and is ready for use in various industries.

Q: How are steel coils used in the production of roofing sheets?: Steel coils are an essential component in the production of roofing sheets. These coils are typically made from high-quality steel, which is known for its durability, strength, and resistance to corrosion. They undergo a series of processes to transform them into roofing sheets. Firstly, the steel coils are loaded onto a machine called a decoiler, which unrolls the coils and feeds them into the production line. This machine ensures a continuous supply of steel for the manufacturing process. Next, the steel coils pass through a series of rollers, which shape the steel into the desired profile for the roofing sheets. These rollers can create various profiles, such as corrugated or standing seam, depending on the specific requirements of the roofing project. After the shaping process, the steel sheets are often coated with protective layers to enhance their durability. This coating can be in the form of zinc or other metallic alloys, known as galvanized or galvalume coatings, respectively. These coatings provide an additional layer of protection against rust and corrosion. Once the sheets are coated, they are typically cut to the desired length and width. This can be done using shearing machines or other cutting tools, ensuring that the roofing sheets are sized correctly for installation. Finally, the roofing sheets are packaged and prepared for distribution to construction sites. They are often bundled together and securely wrapped to protect them during transportation. In summary, steel coils are crucial in the production of roofing sheets. They undergo shaping, coating, cutting, and packaging processes to transform them into finished products ready for installation. The use of steel coils ensures that roofing sheets are strong, durable, and resistant to various environmental factors, making them a popular choice for roofing applications.

Q: What are the different methods of coil slitting for precision cuts?: Coil slitting, a process utilized for cutting large coils of material into narrower strips, is achieved through various methods that offer distinct advantages and suitability for different applications. 1. Rotary Shear Slitting, the most commonly used method, employs rotating circular knives to shear the material and create multiple strips. The distance between the blades can be adjusted to achieve the desired width. This method guarantees high precision with smooth and burr-free edges. 2. Drag Knife Slitting involves the use of a knife with a drag or tangential orientation that follows the material's contour and produces accurate cuts. It is ideal for materials with irregular shapes and finds application in the textile industry to cut fabrics. 3. Scissor Slitting utilizes two blades that move in a scissor-like motion to cut the coil. This method is commonly employed for thinner materials, providing excellent control and precision. It is ideal for materials prone to deformation or wrinkling. 4. Razor Slitting involves the use of a single or multiple razor blades positioned perpendicular to the material. It is particularly effective for cutting stretchy or delicate materials, minimizing the risk of tearing or deforming. 5. Crush Cutting applies pressure from a hardened steel roller or an anvil against a softer material, causing it to deform and split along the desired cutting line. It is suitable for materials that are challenging to cut with sharp blades, delivering precise and clean cuts. In conclusion, the choice of coil slitting method depends on the material, desired precision, and specific application requirements. Each method offers unique benefits and can be tailored to meet specific cutting needs, ensuring accurate and efficient coil slitting processes.