Cold Rolled Steel Coil with High Quality and Wide Reputation

Cold Rolled Steel Coil with High Quality and Wide Reputation System 1

Cold Rolled Steel Coil with High Quality and Wide Reputation

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 5000 m.t./month

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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 with High Quality and Wide Reputation

4.Cold Rolled Steel Specification

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

Grade: Q195~Q345

Thickness: 0.16mm~1.5mm,0.16-1.5mm

Width: 1250,600-1250mm

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

We have organized several common questions for our clients，may help you sincerely：

2.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.

3. 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: why do you need to heat steel when hardening, molecules etc etc: Metalurgy is a fascinating science which has been used to mark the ages of civilization: the Bronze Age, the Iron Age, etc. Ancient sword makers heated steel until the polished surface showed a straw color (which we now know to be about 550°F, and due to surface oxides) and then plunged the blade into a tank of water. The blade was quickly removed, repolished, and observed closely for heat transfer from the core returning the surface to straw color. If so, it was quenched again. This technique left the surface hard without making the blade brittle. Today the steel crystal lattice is known to be either face centered cubic (iron atoms at the corners of a cube and iron atoms centered in the faces of the cube) or body centered cubic ( iron atoms at the corners of the cube and an iron atom at the geometric center of the cube). Most experienced machinists can estimate the temperature of steel from the color of its surface oxides.

Q: What are the dimensions of steel coils used in the storage tank industry?: The dimensions of steel coils used in the storage tank industry can vary depending on the specific requirements of the tank being manufactured. However, in general, steel coils used for storage tanks are typically available in various sizes and thicknesses. The width of steel coils can range from around 600 millimeters to 2,400 millimeters, while the length can vary from several meters to tens of meters. The thickness of the coils can also vary, typically ranging from 1.5 millimeters to 10 millimeters or more. These dimensions are determined by factors such as the size and capacity of the storage tank, the material being stored, and the structural requirements of the tank. The specific dimensions for a given storage tank project would be determined by the tank manufacturer or designer, in accordance with industry standards and specific project specifications.

Q: What are the limitations of using steel coils in certain applications?: One limitation of using steel coils in certain applications is their susceptibility to corrosion. Steel coils can rust when exposed to moisture or harsh environments, which can affect their structural integrity and performance. Additionally, steel coils can be heavy and bulky, making them less suitable for applications that require lightweight materials or intricate designs. Finally, steel coils may not be suitable for applications that require specific electrical or thermal conductivity properties, as steel is not the most conductive material in these aspects.

Q: How are steel coils used in the manufacturing of transmission systems?: Steel coils are used in the manufacturing of transmission systems to create various components such as gears, shafts, and bearings. The coils are typically shaped, cut, and machined to form these parts, which are then assembled to create the transmission system. The use of steel coils ensures that the components are strong, durable, and capable of withstanding the high loads and stresses experienced in transmission systems.

Q: How are steel coils used in the production of metal panels?: Steel coils are used in the production of metal panels as the primary raw material. These coils are fed into a roll forming machine, where they are uncoiled, flattened, and then shaped into the desired panel profiles. This process allows for efficient and continuous production of metal panels with consistent quality and strength.

Q: What are the common industry standards for steel coils?: Steel coils in the industry have varying standards depending on the region and specific use. However, there are widely accepted standards used in the steel industry. Among the most frequently used standards for steel coils is the American Society for Testing and Materials (ASTM) standard. ASTM has created various specifications for different types of steel coils, including hot-rolled, cold-rolled, and galvanized coils. These specifications outline the mechanical and chemical properties that the steel must meet, as well as dimensions, tolerances, and testing requirements. Apart from ASTM, international organizations like the International Organization for Standardization (ISO) and the European Committee for Standardization (EN) have also established standards for steel coils. ISO standards, such as ISO 3574 and ISO 5952, offer guidelines for general requirements, dimensional tolerances, and mechanical properties of steel coils. Similarly, EN standards like EN 10130 and EN 10131 specify the characteristics and tolerances for cold-rolled steel coils. Moreover, industry-specific organizations and associations may have their own standards for steel coils. For instance, the American Iron and Steel Institute (AISI) has developed specific standards for various steel products, including coils. These standards cover aspects including chemical composition, mechanical properties, and surface finish. It's worth noting that steel coil standards can also be determined by the intended use. Industries like automotive, construction, and manufacturing may have specific requirements that surpass general standards. In such cases, customers and manufacturers may refer to industry-specific standards or collaborate to define custom specifications. In summary, while there are several common industry standards for steel coils, it is crucial to consult the specific standards and requirements applicable to the region and application in question to ensure compliance and quality.

Q: How are steel coils measured?: Steel coils are measured by their weight and dimensions. The weight of the coil is measured using weighing scales, while the dimensions are typically measured using calipers or tape measures. The length, width, and thickness of the coil are important measurements that determine its size and suitability for specific applications.

Q: How are steel coils protected against corrosion?: Steel coils are protected against corrosion through various methods such as applying protective coatings like zinc, aluminum, or polymer, or using a process called galvanization where the coils are coated with a layer of zinc. Additionally, storing the coils in a controlled environment with low humidity and proper ventilation also helps prevent corrosion.

Q: What are the different types of steel coil edges?: There are several different types of steel coil edges, each with its own unique characteristics and applications. 1. Mill Edge: This is the most common type of steel coil edge. It is produced by cutting the coil at the mill and does not undergo any additional processing or treatment. Mill edge coils have a natural, slightly rounded edge, which makes them suitable for a wide range of applications. 2. Slit Edge: Slit edge coils are created by cutting the coil along its width using a slitting machine. This process results in a straight and smooth edge, making them ideal for applications that require precise measurements, such as automotive parts or electrical components. 3. Deburred Edge: Deburred edge coils have undergone an additional process to remove any burrs or sharp edges that may be present after slitting. This makes them safer to handle and reduces the risk of damage during fabrication or installation. Deburred edge coils are commonly used in the construction industry, especially for structural steel components. 4. Rounded Edge: As the name suggests, rounded edge coils have a rounded edge profile. This type of edge is achieved through a specific rolling process that creates a smooth and curved edge. Rounded edge coils are often used in applications where safety is a concern, such as in the manufacturing of household appliances or kitchen equipment. 5. Sheared Edge: Sheared edge coils are produced by cutting the coil with shearing blades, resulting in a straight edge with a slight burr. While sheared edge coils may have a rougher finish compared to other types of edges, they are still commonly used in applications that do not require a high level of precision, such as general fabrication or shelving. Overall, the choice of steel coil edge depends on the specific requirements of the application, including factors such as measurement precision, safety considerations, and aesthetic preferences.

Q: How do steel coils contribute to the HVACR industry?: Steel coils are an essential component in the HVACR industry as they are used in the manufacturing of air conditioning and refrigeration systems. These coils, often made of copper or aluminum, are responsible for transferring heat and facilitating the cooling process. They provide efficient heat exchange, allowing HVACR systems to work effectively and maintain desired temperatures in residential, commercial, and industrial settings.

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