High Quality of Cold Rolled Steel Coil from China

High Quality of Cold Rolled Steel Coil from China System 1

High Quality of Cold Rolled Steel Coil from China

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 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

High Quality of Cold Rolled Steel Coil from 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:Can steel coils be used in corrosive environments?: Yes, steel coils can be used in corrosive environments. However, it is important to select the appropriate type of steel and implement suitable protective measures such as coatings or galvanization to prevent corrosion.

Q:What are the safety standards for steel coil manufacturing?: To ensure the well-being and protection of workers, as well as the quality and reliability of the products produced, the safety standards for steel coil manufacturing have been designed. These standards encompass various aspects of the manufacturing process and include both general safety guidelines and industry-specific requirements. One of the primary safety standards for steel coil manufacturing involves implementing proper safeguards for machinery and equipment. This entails ensuring that all machinery and equipment used in the manufacturing process are adequately maintained, regularly inspected, and equipped with safety features such as emergency stop buttons and safety guards. Workers must also receive sufficient training on the safe operation of these machines and be aware of potential hazards. Another crucial safety standard is the utilization of personal protective equipment (PPE). Workers engaged in steel coil manufacturing must be provided with appropriate PPE, including safety goggles, gloves, ear protection, and protective clothing, in order to safeguard them against potential hazards such as flying sparks, noise, and chemical exposure. Additionally, safety standards for steel coil manufacturing emphasize the proper handling and storage of materials. This includes guidelines on how to safely lift and transport heavy steel coils, as well as regulations for stacking and storing them to prevent accidents and injuries. Fire safety is also of utmost importance in the safety standards for steel coil manufacturing. Measures should be implemented to prevent and control fires, such as regular inspections of electrical systems, proper storage and handling of flammable materials, and the availability of fire extinguishers and emergency evacuation plans. Furthermore, safety standards necessitate regular safety training and awareness programs for all employees involved in steel coil manufacturing. This ensures that workers are well-informed about potential hazards, safety procedures, and emergency protocols. Regular safety audits and inspections are also conducted to evaluate compliance with these standards and identify areas for improvement. Overall, the safety standards for steel coil manufacturing strive to establish a safe working environment, minimize the risk of accidents and injuries, and ensure the production of high-quality steel coils. Compliance with these standards is crucial for preserving the well-being of workers, protecting the environment, and upholding the reputation of the manufacturing industry.

Q:how is stainless steel made? what are the things used in making it?: There are 3 basic stainless steels. The Martinsitic, the ferritic, and the Austinistic. The spelling may be wrong on all of them. (Got out of school in 1966 with my metallurgy in 1965. The Ferritic is magnetic and has some resistance to corrosion but the Martinsitic is much more resistant to corrosion. The Austinitic stainless is very resistant to corrosion. The differences are the amount of Chrome and Nickel in the batches. The Austinitic has an 18/8 ratio of Chromium and Nickel with the rest Iron and minor ingredients. The carbon content is very important and these steels are often made in small batches with close monitoring of composition and carbon content. Scrap metals are frequently used with the chrome and nickel being added as carefully selected scrap or even fresh crude stocks. Electric melting is frequent to avoid contamination.

Q:Is 440 steel relatively strong or weak?: Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts. Grades 440A and 440B are identical except for slightly lower carbon contents (0.60 - 0.75% and 0.75 - 0.95% respectively); these have lower attainable hardnesses but slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants. A free-machining variant 440F (UNS S44020) also exists, with the same high carbon content as 440C. Again this grade is not readily available in Australia. Martensitic stainless steels are optimised for high hardness, and other properties are to some degree compromised. Fabrication must be by methods that allow for poor weldability and usually also allow for a final harden and temper heat treatment. Corrosion resistance is lower than the common austenitic grades, and their useful operating temperature range is limited by their loss of ductility at sub-zero temperatures and loss of strength by over-tempering at elevated temperatures. Key Properties These properties are specified for bar product in ASTM A276. Similar but not necessarily identical properties are specified for other products such as plate and forgings in their respective specifications.

Q:What are the dimensions of steel coils used in the oil and gas industry?: The dimensions of steel coils used in the oil and gas industry can vary depending on the specific application and requirements. However, there are some common dimensions that are frequently used. Steel coils used in the oil and gas industry typically have a width ranging from 600mm to 2000mm. The outer diameter of the coil can range from 800mm to 2200mm, while the inner diameter can range from 508mm to 610mm. The weight of the coil can vary as well, ranging from a few tons to several tens of tons. These dimensions are designed to meet the needs of various processes involved in the oil and gas industry, such as pipe manufacturing, storage tank fabrication, and offshore platform construction. It is important to note that these dimensions are not fixed and can be customized based on the specific requirements of each project.

Q:How are steel coils used in the manufacturing of transportation equipment?: Steel coils are used in the manufacturing of transportation equipment as they provide a durable and strong foundation for various components such as chassis, frames, and body panels. These coils are typically processed and shaped into specific forms to meet the design requirements of automobiles, ships, trains, and aircraft. The high tensile strength and ability to withstand heavy loads make steel coils an essential material in the transportation industry, ensuring the safety and reliability of the vehicles and equipment.

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Q:How are steel coils used in the manufacturing of braking systems?: Steel coils are used in the manufacturing of braking systems to create brake pads and other components that require heat resistance and durability. The steel coils are shaped and processed to form brake pads, which provide friction against the rotor to slow down or stop the vehicle. Additionally, steel coils are also used in the production of brake calipers, rotors, and other parts that ensure efficient and reliable braking performance.

Q:What are the different surface treatments for steel coils?: Steel coils can undergo various surface treatments to achieve different outcomes and applications. Some commonly used treatments include: 1. Hot-dip galvanizing: Steel coils are immersed in molten zinc, which forms a protective layer on the surface. This treatment provides excellent corrosion resistance for outdoor use. 2. Electro-galvanizing: A thin layer of zinc is electroplated onto the steel coils. It offers good corrosion resistance and is suitable for indoor applications. 3. Powder coating: Dry powder is applied to the surface and heated to form a durable coating. It provides excellent corrosion resistance and comes in different colors and finishes. 4. Paint coating: Steel coils can be coated with liquid paint, offering both corrosion resistance and aesthetic appeal. The thickness and finish can be customized according to the desired look and level of protection. 5. Phosphating: Steel coils are immersed in a phosphate solution, creating a thin layer that enhances paint adhesion and improves corrosion resistance. 6. Chromate conversion coating: Steel coils are immersed in a solution containing chromium salts, providing excellent corrosion resistance and acting as a primer for subsequent paint or powder coating. 7. Zinc-nickel plating: A layer of zinc-nickel alloy is electroplated onto the steel coils, offering superior corrosion resistance compared to pure zinc plating and is suitable for demanding environments. These are just a few examples of the many available surface treatments for steel coils. The choice depends on factors such as application, desired corrosion resistance, aesthetic requirements, and budget. It is important to carefully consider project needs and consult with experts to determine the most suitable treatment.

Q:How do steel coils perform in high-pressure applications?: Steel coils perform well in high-pressure applications due to their strong and durable nature. The high tensile strength of steel allows it to withstand the pressure exerted on it without deformation or failure. Steel coils are designed to maintain their shape and structural integrity even under extreme pressure, making them suitable for use in various high-pressure applications such as hydraulic systems, pressure vessels, and industrial machinery. Additionally, steel coils have excellent resistance to corrosion and high temperatures, further enhancing their performance in high-pressure environments. Their reliability and ability to withstand high pressure make steel coils a preferred choice for industries that require robust and efficient equipment.

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