Cold Rolled Steel Coil with Good Quality of China

Cold Rolled Steel Coil with Good Quality of China System 1

Cold Rolled Steel Coil with Good Quality of China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 10000 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 Good Quality of China

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：

1.How about your company？

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel，is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

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: How are steel coils priced in the market?: Steel coils are priced in the market based on various factors such as the current demand and supply levels, raw material costs, production and transportation expenses, market competition, and overall market conditions. Additionally, quality, size, and specifications of the steel coils also play a role in determining their pricing.

Q: How much does a steel coil weigh?: The weight of a steel coil can vary depending on its size, thickness, and type of steel used. Generally, a standard steel coil can weigh anywhere from a few hundred pounds to several thousand pounds.

Q: How do steel coils contribute to structural integrity in buildings?: The role of steel coils in ensuring the structural integrity of buildings cannot be overstated. They play a vital role in multiple ways. To begin with, steel coils are extensively utilized in the construction industry to manufacture essential building components like beams, columns, and trusses. These components are responsible for providing support and stability to the overall structure. Due to their exceptional tensile strength and durability, steel coils guarantee that these components can withstand heavy loads and maintain their structural integrity over an extended period. This is particularly crucial in buildings with multiple floors or large open spaces, where the structural elements need to bear substantial weight without deforming or collapsing. Moreover, steel coils are also instrumental in reinforcing concrete structures. Reinforced concrete is a widely adopted construction technique, and steel coils, in the form of reinforcement bars or mesh, are embedded within the concrete to counteract tensile forces. While concrete excels at withstanding compressive forces, it is weak in tension. By incorporating steel coils, the composite material gains the ability to resist both compression and tension, thereby enhancing its structural integrity. This reinforcement technique is particularly vital in high-rise buildings or structures subject to seismic activity, where the risk of structural failure due to bending or cracking is heightened. Another significant contribution of steel coils to structural integrity lies in their corrosion resistance properties. Steel coils are often coated with protective layers, such as zinc through galvanization or paint, to prevent corrosion caused by moisture, chemicals, or environmental factors. Corrosion weakens the structural integrity of steel, leading to degradation and potential failure. By utilizing corrosion-resistant steel coils, the lifespan of the building is prolonged, and the risk of structural damage is significantly diminished. Furthermore, steel coils offer tremendous versatility in design and construction. Their flexibility and malleability allow for the creation of complex and intricate building structures, enabling architects and engineers to push the boundaries of design while maintaining structural integrity. Steel coils can be shaped, bent, and welded into various forms, making them an ideal material for constructing innovative and aesthetically pleasing buildings. In conclusion, steel coils are indispensable in ensuring the structural integrity of buildings. Their strength, stability, durability, corrosion resistance, and design versatility make them an essential material in modern construction, guaranteeing the safety and longevity of buildings for years to come.

Q: What are the common size limitations for steel coils?: The size limitations for steel coils can vary depending on the specific requirements of the industry or application. However, there are commonly followed general size limitations in the steel manufacturing and distribution industry. Steel coils can have a width ranging from as narrow as 0.25 inches (6.35 mm) to as wide as 72 inches (1828.8 mm). This wide range allows for versatility in various applications, including automotive parts and construction materials. The thickness of steel coils can vary significantly, usually ranging from 0.006 inches (0.15 mm) to 0.5 inches (12.7 mm). Thinner coils are often used when lighter weight and flexibility are required, while thicker coils are commonly used in heavy-duty applications that require strength and durability. Consideration should also be given to the weight of steel coils, especially for transportation and handling purposes. Steel coils can typically weigh anywhere from a few hundred pounds to several tons. The weight limitations depend on factors such as the size of the coil, the steel grade, and the transportation and storage equipment used. Additionally, there are limitations on the outer and inner diameter of steel coils. The outer diameter usually ranges from 24 inches (609.6 mm) to 72 inches (1828.8 mm), while the inner diameter can vary from 16 inches (406.4 mm) to 24 inches (609.6 mm). These dimensions are crucial for ensuring compatibility with processing equipment and storage racks. It is important to note that these size limitations are not fixed and can be customized based on specific requirements. Steel manufacturers and distributors often collaborate closely with their customers to determine the optimal size and dimensions of the coils, ensuring efficient handling and processing.

Q: How long do steel coils typically last?: The durability of steel coils is known to last for decades, as it is influenced by various factors including the quality of the steel, maintenance and care, as well as the specific application they are used for. The design of steel coils is generally focused on ensuring longevity by being resistant to corrosion. When properly cared for, regularly maintained, and used within recommended guidelines, steel coils can have a lifespan ranging from 20 to 50 years or more. However, external factors like exposure to harsh environments, extreme weather conditions, and the level of stress they endure can impact their longevity.

Q: How are steel coils processed?: Steel coils are processed through a series of steps, including cleaning, pickling, cold rolling, annealing, and tempering. These processes help to remove impurities, improve surface finish, reduce thickness, and enhance mechanical properties of the steel coils.

Q: What are the different methods of coil recoiling for steel coils?: There are several different methods of coil recoiling for steel coils, each with its own advantages and applications. Some of the common methods include: 1. Slitting and rewinding: This method involves cutting the wide steel coil into narrower strips, which are then rewound into smaller coils. Slitting machines with circular blades are typically used to cut the steel, and the rewinding process ensures tight and uniform winding of the narrower strips. This method is widely used in industries such as automotive, construction, and packaging. 2. Rewinding with tension control: In this method, the steel coil is unwound and rewound with the help of tension control systems. These systems maintain even tension throughout the recoiling process, ensuring consistent winding quality. This method is particularly useful when dealing with delicate or sensitive materials that require gentle handling. 3. Recoiling with edge trimming: Sometimes, the edges of steel coils may be damaged, uneven, or contain defects. In such cases, edge trimming can be employed along with the recoiling process. Edge trimming machines remove the defective sections, resulting in coils with smooth and consistent edges. 4. Recoiling with surface treatment: Surface treatment methods like oiling, coating, or galvanizing are often applied to steel coils to enhance their corrosion resistance or improve their surface properties. Recoiling can be done in conjunction with these treatments, ensuring proper application and uniform coverage on the entire coil surface. 5. Recoiling with tension leveling: Tension leveling is a process that helps eliminate coil shape defects, such as coil set or crossbow, by applying tension during recoiling. This method ensures that the final coil has a flat and even shape, which is beneficial for subsequent processing and manufacturing operations. 6. Recoiling with precision slitting: Precision slitting is a specialized method used to achieve extremely narrow strip widths or tight tolerances in the steel coil. It involves precise control of the slitting knives and the winding tension to ensure accurate and consistent strip dimensions. This method is commonly used in industries that require high precision, such as electronics or precision engineering. Overall, the choice of coil recoiling method depends on various factors including the desired coil dimensions, material characteristics, surface requirements, and the specific application or industry involved. Manufacturers often utilize a combination of these methods to meet the diverse needs of their customers.

Q: How are steel coils annealed for improved properties?: Steel coils are annealed for improved properties by heating them to a specific temperature and then slowly cooling them down. This process, known as annealing, helps to relieve internal stresses in the steel, increase its ductility, and improve its machinability.

Q: How are steel coils processed for edge trimming or shearing?: Steel coils are typically processed for edge trimming or shearing by using specialized machinery such as slitters or shears. These machines are designed to cut the excess edges of the coil, ensuring uniform and precise dimensions. The coils are fed through the machine, where the excess material is removed, leaving clean and straight edges. This process helps to enhance the quality and appearance of the steel coils, making them ready for further manufacturing or fabrication.

Q: Are Steel buildings Fire Resistant, just want to know as I am going to owe it . Suggestions required…………..: Rather depends on the construction method. I've seen a lot of buildings with a steel exterior referred to as 'steel construction', when in fact they had timber framing - not steel. Recently, in my neck of the woods, we had an ice/snow storm, and many timber framed steel buildings collapsed, because of the weight on the roof. A case of not enough pitch on the roof, and not strong enough construction. The fact that there were many that collapsed, tells me the standards for this region are not high enough, hehehe. How a building is finished inside will also affect how fire resistant it is, let alone, the many other factors that come into play, such as wiring, gas lines, and what is actually done (or contained) inside the building. All details not provided. Better Questions Yield Better Answers. Good Luck

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