The Best Cold Rolled Steel Coil JIS G 3302

The Best Cold Rolled Steel Coil JIS G 3302 System 1

The Best Cold Rolled Steel Coil JIS G 3302 System 2

The Best Cold Rolled Steel Coil JIS G 3302

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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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Chines Best Cold Rolled Steel Coil JIS G 3302
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

The Best Cold Rolled Steel Coil JIS G 3302

4.Cold RolledSteel Specificati on

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:I just got this aftermarket exhaust on my truck and it's recommended that it be welded, but the metal is aluminized steel. How do I mig weld aluminized steel?: Yes. Buy a bimetallic strip where one edge is aluminum and the other is steel. A bimetallic strip is a special metal strip where an aluminum strip is fused to a steel strip by high frequency welding. You can form the strip to the shape of the table legs' cross section then weld the steel edge to the leg and the aluminum edge to the table top. Ensure however that the aluminum table top is a weldable alloy and compatible with the bimetallic strip.( You can not weld Al. Alloy 6061T6 so look for Al.Alloy 5086H32 or 5456H321 or the lower Al. Alloy designations, but they have to be strain hardened and not thermally hardened).

Q:What are the common methods of preserving steel coils?: Some common methods of preserving steel coils include applying protective coatings, such as oil or paint, to prevent corrosion and rust formation. Another method is using VCI (Vapor Corrosion Inhibitor) paper or film, which releases chemicals that prevent oxidation. Additionally, steel coils can be stored in climate-controlled environments or wrapped in moisture-resistant materials to minimize exposure to moisture and humidity, which can accelerate corrosion.

Q:How are steel coils protected during shipping?: Steel coils are typically protected during shipping by being wrapped in a moisture-resistant material such as plastic or wax paper. They are also often secured with steel straps or bands to prevent shifting or damage during transit. Additionally, wooden or metal cradles are used to provide support and stability while in transport.

Q:How are steel coils inspected for formability?: Steel coils are typically inspected for formability through a combination of visual inspection, mechanical testing, and laboratory analysis. Visual inspection involves examining the surface of the coil for any visible defects such as scratches, dents, or deformities that could affect its formability. This is usually done by trained personnel who carefully inspect the entire surface of the coil. Mechanical testing is also commonly employed to assess the formability of steel coils. This can include conducting physical tests such as tensile testing, where a sample is subjected to controlled forces to measure its strength and elongation properties. This helps determine if the steel has the necessary ductility and strength to be formed into the desired shape without cracking or breaking. Additionally, laboratory analysis is often conducted to assess the chemical composition and microstructure of the steel. This involves taking small samples from the steel coil and analyzing them using techniques such as spectroscopy and microscopy. These analyses can provide valuable insights into the steel's composition, grain structure, and other characteristics that can impact its formability. Overall, a combination of visual inspection, mechanical testing, and laboratory analysis is used to ensure that steel coils meet the required formability standards. This comprehensive approach helps identify any potential issues or defects that could affect the performance and reliability of the steel when it is formed into its intended shape.

Q:What are the different methods of heat treatment for steel coils?: There are several different methods of heat treatment for steel coils, each with its own benefits and applications. 1. Annealing: This method involves heating the steel coils to a high temperature and then slowly cooling them, usually in a controlled atmosphere. Annealing helps to relieve internal stresses, improve ductility, and refine the grain structure of the steel, making it softer and more machinable. 2. Normalizing: Normalizing is similar to annealing, but the cooling process is typically faster. This treatment is often used to refine the grain structure and achieve a more uniform hardness throughout the steel coils. It also helps to remove any residual stresses and improve the mechanical properties of the material. 3. Quenching and tempering: In this two-step heat treatment process, the steel coils are first heated to a high temperature and then rapidly cooled by immersion in a quenching medium, such as oil or water. This causes the formation of a hard, brittle phase called martensite. To improve the toughness and reduce the brittleness, the coils are then reheated to a lower temperature and held there for a specific period of time. This process, known as tempering, helps to reduce the internal stresses and increase the ductility and toughness of the steel. 4. Case hardening: Case hardening is a heat treatment method used to increase the surface hardness of the steel coils while maintaining a relatively soft and ductile core. The process involves heating the coils in the presence of a carbon-rich atmosphere, allowing carbon to diffuse into the surface layer of the steel. This creates a hard outer layer, known as the case, while preserving the desired mechanical properties in the core. 5. Stress relieving: Stress relieving is performed by heating the steel coils to a specific temperature and holding them there for a sufficient period of time. This process helps to reduce residual stresses that may have been introduced during previous manufacturing or heat treatment processes. Stress relieving can improve dimensional stability, reduce the risk of distortion or cracking, and enhance the overall performance of the steel coils. Overall, the choice of heat treatment method for steel coils depends on the desired properties, intended application, and specific requirements of the end product. Each method has its own advantages and can be tailored to achieve the desired balance between hardness, toughness, ductility, and other mechanical properties.

Q:How can the quality of steel coils be ensured?: The quality of steel coils can be ensured through a combination of careful selection of raw materials, closely monitored manufacturing processes, and rigorous quality control measures. This includes conducting regular inspections and tests at various stages of production to ensure that the steel coils meet the required specifications and standards. Additionally, implementing proper storage and handling procedures, as well as adhering to industry best practices, can help maintain the quality of steel coils throughout their lifecycle.

Q:Are Danielle steel books good to read. Im 15 , but do I have to wait until Im a bit older.: No they are a good read.

Q:How much do steel coils weigh?: The weight of steel coils can vary depending on their size and thickness, but on average, they can weigh anywhere from a few hundred pounds to several tons.

Q:How are steel coils protected against bending and deformation?: Steel coils are protected against bending and deformation through various measures. One common method is the use of protective packaging materials such as wooden crates or metal skids, which provide stability and support to prevent any bending or deformation during transportation or storage. Additionally, steel coils are often secured tightly using steel or plastic bands to maintain their shape and prevent any shifting or movement. These bands are strategically placed at regular intervals along the length and width of the coils to ensure even distribution of pressure and minimize the risk of bending or deformation. Moreover, steel coils can be further protected by placing them on a flat and level surface during storage or transportation. This helps to distribute the weight evenly and reduce the chances of any bending or deformation due to uneven pressure. In some cases, steel coils may also be coated with anti-corrosion agents to protect against moisture and rust, which can weaken the structure of the coils and lead to bending or deformation over time. Overall, a combination of proper packaging, secure fastening, and careful handling is essential to protect steel coils against bending and deformation, ensuring their structural integrity and quality.

Q:Which is more reactive? Zinc or Steel? And why?: Zinc. Steel is an alloy consisting mostly out of iron, In the reactivity seris, zinc is more reactive than iron. Therefore, zinc is more reactive than steel

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