• Steel coil sheet by hot dipped zinc coating good CS quaity System 1
  • Steel coil sheet by hot dipped zinc coating good CS quaity System 2
Steel coil sheet by hot dipped zinc coating good CS quaity

Steel coil sheet by hot dipped zinc coating good CS quaity

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
37667 m.t./month

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Specification

Standard:
ASTM,JIS
Technique:
Hot Rolled
Shape:
Round
Surface Treatment:
Oiled,Chromed Passivation
Steel Grade:
Q195,Q235,HRB400,300 Series
Certification:
ISO
Thickness:
1.5-3 mm
Width:
max 2000mm
Length:
As customer's requirement
Net Weight:
3-13 MT
Surface structure:
zero spangle, regular spangle or minimum spangle

Hot-dip galvanized steel coils are available with a pure zinc coating through the hot-dip galvanizing process. It offers the economy, strength and formability of steel combined with the corrosion resistance of zinc. The hot-dip process is the process by which steel gets coated in layers of zinc to protect against rust. It is especially useful for countless outdoor and industrial applications. Production of cold formed corrugated sheets and profiles for roofing, cladding, decking, tiles, sandwich walls, rainwater protective systems, air conditioning duct as well as electrical appliances and engineering. 

Technology test results:

Processability

Yield strength

Tensile strength

Elongation %

180°cold-bending

Common   PV

-

270-500

-

d=0,intact,no zinc removal

Mechanical   interlocking JY

-

270-500

-

d=0,intact,no zinc removal

Structure   JG

>=240

>=370

>=18

d=0,intact,no zinc removal

Deep   drawn SC

-

270-380

>=30

d=0,intact,no zinc removal

EDDQ   SC

-

270-380

>=30

d=0,intact,no zinc removal




Steel coil sheet by hot dipped zinc coating good CS quaitySteel coil sheet by hot dipped zinc coating good CS quaity



FAQ

Q: How do you guarantee the quality of your product?

A: Every process will be checked by responsible QC which insures every product's quality.

 

Q: How much is your delivery time?

A: Normally within 30 days of receipt of LC original or prepayment, but mostly according to the specific requirements or the quantity

 

Q: I need sample, could you support?

A: We can supply you with the sample for free, but the delivery charges will be covered by our customers. For avoiding the misunderstanding, it is appreciated if you can provide the International Express Account for Freight Collect. Also you can have a visit to us, welcome to CNBM! 

 

Company Information

 

CNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council


Q: How do steel coils contribute to sustainable construction?
Steel coils contribute to sustainable construction in several ways. Firstly, steel is a highly durable and long-lasting material, which means that structures built using steel coils have a longer lifespan and require fewer repairs and replacements. This reduces the overall environmental impact of construction by minimizing waste and resource consumption. Additionally, steel is a highly recyclable material, and steel coils can be easily recycled at the end of their life cycle, reducing the need for new steel production and conserving natural resources. Furthermore, steel is a fire-resistant material, providing enhanced safety and reducing the risk of structural damage during fire incidents. Overall, the use of steel coils in construction promotes sustainability by minimizing environmental impact, conserving resources, and ensuring the longevity and safety of structures.
Q: What are the different types of steel coil grades and specifications?
In the market, one can find a variety of steel coil grades and specifications. These grades and specifications cater to different industry needs and applications. Several commonly used types include: 1. Hot Rolled Steel Coils: These coils are manufactured by heating the steel above its recrystallization temperature and then rolling it at a high temperature. They are often used in applications where dimensional accuracy and surface finish are not crucial. 2. Cold Rolled Steel Coils: Cold rolled steel coils are produced by subjecting hot rolled coils to further processing in cold reduction mills. This process enhances surface finish, tightens tolerances, and increases strength compared to hot rolled coils. They find wide applications in the automotive, construction, and electrical industries. 3. Galvanized Steel Coils: These coils are coated with a layer of zinc to protect them from corrosion. Galvanization improves the durability and longevity of the steel coils. They are commonly used in roofing, fencing, and automotive body parts. 4. Stainless Steel Coils: Made from a combination of iron, chromium, and other elements, stainless steel coils offer excellent corrosion resistance and high strength. They are widely used in industries such as food processing, chemical, and medical, where hygiene and corrosion resistance are critical. 5. High-strength Low-alloy (HSLA) Steel Coils: HSLA steel coils are designed to possess higher strength and improved formability compared to conventional carbon steels. They are commonly employed in structural and transportation applications where weight reduction and high strength are required. 6. Electrical Steel Coils: Also known as silicon steel or transformer steel, these coils are specifically designed for electrical equipment like transformers, motors, and generators. They exhibit low core losses and high magnetic permeability, ensuring efficient energy transfer. 7. Tool Steel Coils: Tool steel coils are specially formulated to possess high hardness, wear resistance, and toughness. They are commonly used in the production of cutting tools, dies, and molds. These examples represent only a fraction of the steel coil grades and specifications available in the market. The choice of the appropriate grade and specification depends on specific application requirements, such as strength, corrosion resistance, formability, and surface finish.
Q: What are the different methods of recoiling steel coils?
There are several methods of recoiling steel coils, including the slitting method, the oscillating method, and the rewinding method.
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.
If stainless steels were used they would have to be high grade, high Chromium-Nickel alloyed stainless steels. The best in the range would be the Stainless Steel 316 series with superior corrosion resistance and strength. The downside to this is the expense. Carbon steel may be used but only if reinforced with a more corrosive resistant element
Q: How are steel coils used in the production of electrical conduits?
Steel coils are used in the production of electrical conduits in several ways. Firstly, steel coils are used as the raw material for manufacturing electrical conduits. These coils are made of high-quality steel that is specially processed and formed into a long, continuous strip. Once the steel coils are obtained, they are fed into a machine called a slitter. The slitter cuts the coils into narrower strips of the desired width. These narrower strips will serve as the base material for the electrical conduits. The next step is to shape the steel strips into the desired conduit shape. This is done by passing the strips through a series of rollers and other shaping tools. The steel strips are gradually formed into the round or rectangular shape of the conduit. The rollers apply pressure and manipulate the steel strip until it reaches the desired shape. After the shaping process, the ends of the steel strips are welded together to create a continuous conduit. This welding process ensures that the conduit will have a seamless structure, which is important for its functionality and durability. Once the conduits are formed and welded, they undergo further processing to enhance their properties. This may include processes such as galvanizing, where the conduits are coated with a layer of zinc to protect them from corrosion. This additional layer provides the conduits with increased longevity, making them suitable for various electrical applications. In summary, steel coils are essential in the production of electrical conduits. The coils serve as the raw material that is shaped, welded, and processed to create the final product. The use of steel coils ensures that the electrical conduits are strong, durable, and capable of withstanding the demands of electrical installations.
Q: How are steel coils processed for slitting or shearing?
Steel coils are processed for slitting or shearing by feeding the coil through a slitter or shear machine, which cuts the coil into narrower strips or various shapes, respectively. This process involves unwinding the coil, straightening it, and then passing it through the slitting or shearing machine, where precise cuts are made according to the desired dimensions. The resulting strips or shapes are then collected and packaged for further use or distribution.
Q: How are steel coils used in the production of pressure vessels?
Steel coils are used in the production of pressure vessels as they provide a strong and durable material for constructing the vessel's shell. The coils are formed into cylindrical shapes and welded together to create the vessel's body. This ensures that the vessel can withstand the high pressures it is designed to hold, making steel coils an essential component in pressure vessel manufacturing.
Q: What are the common coil thickness tolerances?
The common coil thickness tolerances vary depending on the specific industry and application. However, generally speaking, the typical coil thickness tolerances range from ±0.001 to ±0.005 inches (or ±0.025 to ±0.127 millimeters). These tolerances ensure that the coil meets the required specifications and can perform its intended function accurately.
Q: like the steel industry and the effects it had on industrial growth, 10 points!
The single most important important advance in steel production was learning to accurately control carbon content. This was done through the Bessemer Process in which air was blown through molten iron to burn out impurities and excess carbon. Low carbon iron (wrought iron) could be easily worked into shapes. Medium carbon iron could be cast into useful and durable shapes. High carbon steel could be used for structural uses (beams and girders). Adding alloys such as nickel and silicon could produce very tough steels and steels resistant to rust. Adding vanadium to steel engine parts allowed Ford to produce finely machined engines in huge numbers with existing machinery.
Q: What are the current trends in the steel coil industry?
Some current trends in the steel coil industry include an increased focus on sustainability and environmental impact, the adoption of advanced technologies for improved efficiency and productivity, growing demand for high-strength and lightweight steel coils for automotive and construction sectors, and the emergence of new markets in developing countries. Additionally, there is a shift towards digitalization and automation in order to streamline operations and reduce costs.

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