Cold Rolled Steel Coil--Best Quality in China

Cold Rolled Steel Coil--Best Quality in China System 1

Cold Rolled Steel Coil--Best Quality in China System 2

Cold Rolled Steel Coil--Best Quality in China

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 m.t./month

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Cold Rolled Steel Coil--Best Quality in China

1.Structure of Cold Rolled Steel Description：

The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling continuous rolling, degreasing, annealing,skin pass,slitting and cut to length line etc. Along with it many kinds of new technology and new process of global cold rolling production have been applied. Therefore the quality of the goods could be guaranteed. The product is widely used in outdoor and interior decoration, furnishing manufacturing, home appliance, automobile etc.

2.Main Features of the Cold Rolled Steel：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• Excellent heat resistance performance

• High strength

• Good formability

• Good visual effect

3. Cold Rolled Steel Images

Cold Rolled Steel Coil--Best Quality in China

4.Cold Rolled Steel Specification

Standard:AISI,ASTM,DIN,GB,JIS,JIS G3302 ASTM 653M EN10142

Grade: Q195~Q345

Thickness: 0.16mm~2.0mm

Width: 1250mm MAX

Coil weight:3-12 MT

Coil ID:508/610mm

Chemical composition:

0.150

0.476

11.231

12.50

0.900

0.039

0.010

5. FAQ of Cold Rolled Steel

1.How to guarantee the quality of the products？

We have established the international advanced quality management system，every link from raw material to final product we have strict quality test；We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

Q:What are the different types of steel coil surface treatments?: There are several different types of steel coil surface treatments, including hot-dip galvanizing, electro-galvanizing, powder coating, and organic coating.

Q:Can steel coils be used in the production of aerospace components?: Yes, steel coils can be used in the production of aerospace components. Steel coils are commonly used in the manufacturing of various aerospace components such as structural frames, fasteners, landing gear, and engine parts. The high strength, durability, and versatility of steel make it a suitable material for these critical components in the aerospace industry.

Q:Also, what is the top best slow cooker that is 100% stainless steel? Thank you!: My SS pans are Prestige.

Q:How are steel coils used in the production of electronic devices?: Steel coils are used in the production of electronic devices in a variety of ways. One common use is in the manufacturing of transformers and inductors, which are crucial components in many electronic devices. Transformers and inductors consist of a coil of wire wound around a core, and steel coils are often used as the core material due to their magnetic properties. The steel coils used in these components help to enhance the magnetic fields generated by the coils, enabling efficient energy transfer and voltage regulation. The magnetic properties of steel, such as its high permeability and low hysteresis loss, make it an ideal material for these applications. Additionally, steel coils are also used in the production of printed circuit boards (PCBs). PCBs are the backbone of most electronic devices and consist of a flat board made of non-conductive material, such as fiberglass, with a thin layer of copper traces etched onto it. These copper traces form the electrical connections between various components on the board. Steel coils are used in the production of PCBs as part of the fabrication process. They are typically used to create the stencils that are used to apply solder paste onto the board before component placement. The steel coils are laser-cut to create precise stencil patterns, allowing for accurate and consistent solder paste application. In summary, steel coils play a vital role in the production of electronic devices. They are used in the manufacturing of transformers and inductors, where their magnetic properties enhance energy transfer and voltage regulation. Steel coils are also utilized in the fabrication of PCBs, where they are used to create stencils for solder paste application. Overall, the use of steel coils helps ensure the efficient and reliable operation of electronic devices.

Q:what are the characteristics when of iron or steel when stretched? which one could be stretched further? which one stretches more evenly?thankyou: Technically, this is known as ductility. a material which can be permanently bent and stretched is said to be ductile. Pure iron, when it lacks carbon and impurities like sulfur and phosphorus, is relatively soft, ductile, and weak. It's about as soft as brass. It can be stretched to about 50% of it's original length before it breaks. The amount a sample can be stretched without breaking is known as elongation. The key to steel is the addition of about 2 parts per thousand of carbon, or around 0.2%. This alters the crystal structure and makes steel much harder, stronger, and tougher, though it also becomes somewhat less ductile. Mild steel, with a low carbon content, has an elongation of around 30% Adding more carbon makes the steel yet stronger, but further reduces the elongation. Adding more than 2-3% carbon produces what is known as Cast Iron. Cast iron is brittle. It has virtually no ductility. It's pretty cheap to produce though.

Q:What are the different methods of roll forming steel coils?: There are several different methods of roll forming steel coils, including hot rolling, cold rolling, and continuous casting. Hot rolling involves heating the steel above its recrystallization temperature and then passing it through a series of rollers to shape it into the desired form. Cold rolling, on the other hand, is performed at room temperature and involves passing the steel through rollers to increase its strength and improve surface finish. Continuous casting is a method where molten steel is continuously poured into a mold and then cooled to form a solidified strip or slab. These methods offer different advantages and are used in various applications based on the desired properties of the steel product.

Q:How are steel coils coated to prevent rust and corrosion?: Steel coils are coated to prevent rust and corrosion through a process called galvanization. This involves immersing the coils in a bath of molten zinc, which forms a protective layer on the steel surface. This zinc coating acts as a barrier, preventing oxygen and moisture from coming into contact with the steel, thus reducing the risk of rust and corrosion.

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 inspected for surface cleanliness?: Steel coils are inspected for surface cleanliness through a variety of methods including visual inspection, magnetic particle inspection, and ultrasonic testing. Visual inspection involves visually examining the surface for any visible contaminants or defects. Magnetic particle inspection uses magnetic fields and particles to detect surface defects such as cracks or flaws. Ultrasonic testing uses high-frequency sound waves to detect any subsurface defects or irregularities. These inspection methods ensure that the steel coils meet the required standards of cleanliness and quality.

Q:What are the different grades of steel coils?: There are various grades of steel coils available, including but not limited to, low carbon steel, high carbon steel, stainless steel, and alloy steel. These different grades offer varying levels of strength, corrosion resistance, and other mechanical properties, allowing them to be used for various applications in industries such as automotive, construction, and manufacturing.

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