Cold Rolled Steel Coil from the Best Quality

Cold Rolled Steel Coil from the Best Quality System 1

Cold Rolled Steel Coil from the Best Quality

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 1000000 m.t./month

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2.Main Features of the Cold Rolled Steel：

• High strength

• Excellent process capability

• Good formability

• Good visual effect

• Smooth and flat surface

• Workability, durability

3.Cold Rolled Steel Images

Cold Rolled Steel Coil from the Best Quality

4.Cold Rolled Steel Specification

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

Grade: Q195~Q345

Coil ID:508/610mm

Chemical composition:

5.FAQ of Cold Rolled Steel

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

1. 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.

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.

Q:What are the different types of steel coil slitting blades?: There are several different types of steel coil slitting blades, each designed for specific applications and materials. Some of the most common types include: 1. Circular slitting blades: These are the most commonly used blades for slitting steel coils. They are circular in shape and have a sharp edge that cuts through the coil as it rotates. Circular slitting blades can be made from various materials, such as high-speed steel or tungsten carbide, depending on the desired cutting performance and durability. 2. Arbors: Arbors are another type of steel coil slitting blade that is used in conjunction with circular slitting blades. They are cylindrical in shape and hold the circular blade in place, allowing for precise and consistent slitting of the coil. 3. Shear slitting blades: Shear slitting blades are used for cutting thicker and harder materials, such as stainless steel or aluminum. They have a straight edge and work by shearing the material apart, rather than cutting through it like circular blades. Shear slitting blades are typically made from high-quality tool steel to withstand the high forces involved in cutting thicker materials. 4. Crush cut slitting blades: Crush cut blades are used for slitting softer materials, such as paper or plastic. These blades have a blunt edge that crushes and tears the material, rather than cutting it cleanly. Crush cut blades are often made from materials like carbon steel or hardened stainless steel. 5. Razor slitting blades: Razor slitting blades are used for slitting delicate materials that require a clean and precise cut, such as thin films or foils. These blades have an extremely sharp edge that slices through the material without causing any damage or distortion. Razor slitting blades are typically made from high-quality stainless steel or tungsten carbide. It is important to select the appropriate type of steel coil slitting blade based on the specific application, material, and desired cutting performance. The choice of blade will greatly impact the quality and efficiency of the slitting process.

Q:How are steel coils used in the manufacturing of suspension springs?: Steel coils are used in the manufacturing of suspension springs as they provide the necessary strength and resilience to support the weight of the vehicle and absorb shocks and vibrations. The steel coils are shaped and formed into the desired spring shape, which allows them to effectively compress and expand to absorb and distribute the impact and forces experienced during vehicle movement and road conditions.

Q:What is the process of pickling and oiling steel coils?: To ensure the quality and protection of steel coils, a series of steps are undertaken in the process of pickling and oiling. The first step involves pickling, wherein impurities and scale are removed from the surface of the steel coil. This is achieved by immersing the coil in an acid bath, such as hydrochloric acid or sulfuric acid, which effectively dissolves any oxides, rust, or contaminants present on the surface. This step is critical as it readies the steel for further processing and safeguards against potential defects or corrosion. Following pickling, the steel coils are rinsed with water to eliminate any residual acid and then dried. Once they are clean and dry, a layer of oil is applied to provide temporary corrosion protection and lubrication during subsequent handling and transport. The oil coating acts as a barrier, preventing rusting or oxidation before the steel undergoes further processing or is utilized in various applications. The oiling process can be executed through various methods. One common approach is to apply the oil using a roller or brush, ensuring an even coating across the entire surface of the coil. Alternatively, the coils can be passed through a bath or spray chamber where the oil is administered. The choice of oil depends on the specific requirements of the steel and its intended use, with options ranging from mineral oil and synthetic oils to specialized rust-preventive coatings. Once the oiling process is complete, the steel coils are typically stacked, wrapped, or packaged for storage or transportation. It is crucial to handle the coils with care to avoid damaging the oil coating and compromising the corrosion protection it provides. Overall, the pickling and oiling of steel coils are indispensable steps in the steel manufacturing process. They ensure the quality, cleanliness, and protection of the steel, thereby prolonging its lifespan and enhancing its performance in various applications.

Q:What is the process of slitting steel coils into narrower strips?: The process of slitting steel coils into narrower strips involves unwinding the steel coil, passing it through a set of rotating circular blades called slitters, and then rewinding the resulting narrower strips onto separate spools.

Q:What are the different methods of coil recoiling for steel coils?: There are several methods of coil recoiling for steel coils, including slitting, rewinding, and recoiling. Slitting involves cutting the coil into narrower strips, while rewinding involves unwinding the coil and rewinding it onto a new spool. Recoiling, on the other hand, is the process of rewinding the coil onto the same spool. These methods allow for the customization of coil width and length to meet specific requirements and facilitate easier handling and transportation.

Q:What are the common methods of protecting steel coils from corrosion during storage?: There are several common methods used to protect steel coils from corrosion during storage. These methods are employed to prevent moisture and other environmental elements from coming into contact with the steel coils, which can lead to corrosion. 1. VCI (Volatile Corrosion Inhibitor) Packaging: VCI packaging is a widely used method for protecting steel coils. VCI materials are incorporated into the packaging, such as plastic bags or films, which release a vapor that forms a protective layer on the surface of the steel coils. This layer prevents moisture and other corrosive agents from reaching the steel, thus inhibiting corrosion. 2. Oil Coating: Another widely used method is to apply a thin layer of oil on the surface of the steel coils. The oil acts as a barrier, preventing moisture and oxygen from coming into contact with the steel. This method is particularly effective for long-term storage or transportation of steel coils. 3. Desiccants: Desiccants, such as silica gel packets, can be placed inside the packaging to absorb any moisture that may be present. By reducing the humidity levels inside the packaging, the risk of corrosion is minimized. This method is often used in conjunction with VCI packaging or oil coating. 4. Proper Ventilation: Adequate ventilation is necessary to prevent the accumulation of moisture around the steel coils during storage. By allowing air to circulate freely, it helps to reduce the humidity levels and prevents the formation of condensation, which can lead to corrosion. 5. Controlled Environment: Storing steel coils in a controlled environment can be an effective way to prevent corrosion. This involves maintaining a constant temperature and humidity level, which are not conducive to corrosion. Temperature and humidity control can be achieved through the use of air conditioning or dehumidification systems. It is important to note that the specific method or combination of methods used to protect steel coils will depend on various factors, such as the duration of storage, the environmental conditions, and the specific requirements of the steel coils. Regular inspections and maintenance are also crucial to ensure the ongoing protection of the steel coils from corrosion.

Q:What are the common coil thickness tolerances?: The common coil thickness tolerances can vary depending on the specific industry and application. However, typical tolerances for coil thickness range from +/- 0.001 inches to +/- 0.005 inches.

Q:What is the role of steel coils in the manufacturing of appliances?: Steel coils are used in the manufacturing of appliances to provide strength, durability, and structural integrity to the appliance components. They serve as the foundation for various parts, such as the body, frame, and internal structures, ensuring stability and support. Steel coils also contribute to the overall performance and lifespan of appliances by withstanding high temperatures, corrosion, and mechanical stress.

Q:How are steel coils used in the manufacturing of tools and equipment?: Steel coils are used in the manufacturing of tools and equipment as they are typically shaped and cut into various components such as blades, springs, and handles. These coils provide the necessary strength and durability required for the tools and equipment to withstand heavy usage and perform effectively.

Q:i cant find this stuff about steel:conductivitystrengthcorrosion resistancecommon applicationsif you know of any interesting facts, i could use those 2!thanx!: The strength and corrosion resistance depends on the mix. Pure steel is pure iron plus 6% pure carbon. It is the carbon molecules that give it a tough crystallized strength. Pure iron is wrought iron and you can bend that with your hands. Strength also depends on the shape of the beam the most common steel beam is the W flange more commonly called the I beam. That is because the strength of the ‘I’ beam is just a little bit less than if the entire I beam was filled in; however the weight and material savings is huge. Steel itself has no corrosion resistance and is often given a zinc coating just to resist oxidization. Manganese, vanadium and tungsten are just some of the other elements added to improve the steel.

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