Cold Rolled Steel coil --in Good Quality China Best

Cold Rolled Steel coil --in Good Quality China Best System 1

Cold Rolled Steel coil --in Good Quality China Best System 2

Cold Rolled Steel coil --in Good Quality China Best System 3

Cold Rolled Steel coil --in Good Quality China Best

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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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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. 2.Main Features of the Cold Rolled Steel：

• Excellent process capability

• Smooth and flat surface

• Workability, durability

• High strength

• Good visual effect

3. Cold Rolled Steel Images

Cold Rolled Steel coil --in Good Quality China Best

4.Cold Rolled Steel Specification

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

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，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: What are the dimensions of steel coils used in the agricultural equipment industry?: The dimensions of steel coils utilized in the agricultural equipment sector differ based on the precise application and equipment requirements. Nevertheless, there are several prevalent dimensions for steel coils employed in this industry, spanning from 0.5mm to 6mm in thickness and 600mm to 2000mm in width. The length of the coils can be tailored to suit the particular equipment demands. Furthermore, the weight of the coils can fluctuate, generally ranging from a few hundred kilograms to multiple tons. It is crucial to acknowledge that these dimensions are not set in stone and may vary depending on the manufacturer and the specific agricultural equipment being manufactured.

Q: How are steel coils processed and treated?: Steel coils are processed and treated through a series of steps. Initially, the steel is cleaned and pickled to remove any impurities. It is then passed through a series of rolling mills to reduce its thickness and increase its length. The coils are then annealed to improve their strength and ductility. Further treatments such as galvanizing or coating can be applied to enhance corrosion resistance or improve aesthetic appeal. Finally, the coils are cut and packaged according to customer specifications before being shipped for various applications in industries such as construction, automotive, and manufacturing.

Q: Can anyone please tell me what is the DUCTILE TO BRITTLE TRANSITION TEMPERATURE IN STEEL LOW CARBON?Thanks.: The temperature varies with the type of low carbon steel and how it is heat treated. Common structural steel actually have a transition temperature as defined by Charpy impact tests to be in the 50 degree range. Most low carbon steel pipe such as ASTM A53, A106 and pressure vessel plate such as A212, a515 also have 50 degree range Charpy test results. If you look at materials with fine grain such A516 plate, A300 pipe and similar materials then the transition temperature drops to around -50 degrees. The thing to remember is in addition to the transition temperature you also have to have the material at a high stress level, a stress riser such as a notch and then the sudden application of additional stress to get an actual brittle fracture failure. That is why bridges make from common structural steel don't fail at temperatures as low as -40 degrees.

Q: What are the different grades of steel used for making coils?: The different grades of steel used for making coils vary depending on the specific application and requirements. Common grades include low carbon steel (e.g., ASTM A36), medium carbon steel (e.g., ASTM A572), high carbon steel (e.g., ASTM A516), and stainless steel (e.g., AISI 304). Each grade offers different properties such as strength, ductility, corrosion resistance, and heat resistance, allowing manufacturers to choose the most suitable grade for their coil production needs.

Q: ive made lots of knives but they are dark and not shiny. how do i polish a knife and make it shiny: If the steel knife is dark and not mirror-shiny, then it is probably carbon steel and not stainless steel. If they are carbon steel, then you cannot polish it to a mirror finish - sorry. If there's any rust on them, you can use a very-fine grit sandpaper to remove. Do not put carbon steel knives in the dishwasher, and dry them thoroughly after hand-washing. For long-term storage (meaning you don't plan to use the knife within the next few weeks), wipe the blade a bit with some mineral oil, then store the blade portion of the knife in a plastic bag.

Q: How are steel coils used in the production of bridges?: Steel coils are used in the production of bridges as they provide a reliable and strong structural material. These coils are shaped and formed into various components, such as beams and girders, which are then assembled to create the bridge's framework. The steel coils' durability and high tensile strength make them ideal for supporting heavy loads and withstanding the forces experienced by bridges.

Q: How are steel coils processed for different levels of hardness?: Different levels of hardness can be attained in steel coils using a variety of methods. One common approach is heat treatment, in which the coils are heated to a specific temperature and then rapidly cooled to modify their microstructure and achieve the desired hardness. The heat treatment process can encompass quenching, tempering, or annealing, depending on the desired hardness level. Quenching involves quick cooling of the coils in a liquid medium like water or oil to achieve a high hardness level. On the other hand, tempering requires reheating the coils to a lower temperature and gradually cooling them to attain a desired balance between hardness and toughness. Annealing, on the other hand, involves heating the coils to a specific temperature followed by slow cooling to release internal stresses and obtain a softer and more malleable material. Additionally, mechanical processes like cold rolling or cold working can be employed to enhance the hardness of steel coils. These processes involve applying compressive forces to the coils, causing the material to deform and resulting in increased hardness. Overall, achieving different hardness levels in steel coils requires meticulous control of temperature, cooling rate, and mechanical forces to obtain the desired properties for specific applications.

Q: What are the various surface finishes available for steel coils?: There are several surface finishes available for steel coils, each with its own unique properties and applications. Some of the most commonly used surface finishes for steel coils include: 1. Hot rolled: This finish is achieved by rolling the steel at high temperatures, which creates a rough, scale-like surface. Hot rolled coils are typically used for structural applications, such as construction materials and industrial machinery. 2. Cold rolled: In contrast to hot rolled coils, cold rolled coils are rolled at room temperature, resulting in a smoother and more refined surface. Cold rolled steel is often used in automotive and appliance manufacturing due to its superior surface finish and dimensional accuracy. 3. Galvanized: Galvanizing is a process that involves coating steel with a layer of zinc to protect it from corrosion. Galvanized steel coils have a shiny, metallic appearance and provide excellent corrosion resistance, making them suitable for outdoor applications, such as roofing, fences, and gutters. 4. Electro-galvanized: Similar to galvanized steel, electro-galvanized coils are also coated with a layer of zinc. However, the coating thickness is typically thinner and achieved through an electroplating process. Electro-galvanized steel coils offer good corrosion resistance and are commonly used in the manufacturing of electrical appliances, automotive parts, and construction components. 5. Pre-painted: Pre-painted steel coils are coated with a layer of paint or polymer film on the surface. This finish provides both protection against corrosion and aesthetic appeal, allowing for a wide range of color options. Pre-painted steel coils are extensively used in the construction industry for applications like roofing, cladding, and wall panels. 6. Stainless steel: While not technically a surface finish, stainless steel coils have their own unique properties that make them suitable for various applications. Stainless steel coils are highly resistant to corrosion, heat, and chemical damage, making them ideal for industries such as food processing, medical equipment, and marine applications. These are just a few examples of the various surface finishes available for steel coils. The choice of finish depends on factors such as the intended application, desired appearance, and level of corrosion resistance required.

Q: What are the different certifications required for steel coil manufacturers?: Steel coil manufacturers may be required to obtain various certifications in order to operate in the industry, ensuring that they meet specific quality and safety standards. One widely recognized certification is the ISO 9001, an international standard for quality management systems. This certification demonstrates the manufacturer's commitment to consistently meeting customer and regulatory requirements through the implementation of effective processes and procedures. Another crucial certification is the ISO 14001, which focuses on environmental management systems. By obtaining this certification, manufacturers prove their dedication to implementing sustainable practices and minimizing their environmental impact. In terms of safety, manufacturers may need certifications like the OHSAS 18001 or ISO 45001, which are standards for occupational health and safety management systems. These certifications guarantee that the manufacturer has established proper processes and controls to ensure the well-being of their employees and stakeholders. Additionally, manufacturers may require industry-specific certifications such as the American Institute of Steel Construction (AISC) certification, which is specific to structural steel fabrication and erection. This certification ensures that the manufacturer adheres to the best practices in the industry. Furthermore, manufacturers may need certifications related to specific product standards, such as the American Society for Testing and Materials (ASTM) certification. This certification guarantees that the manufacturer's products meet specific quality and performance requirements. Acquiring these certifications is crucial for steel coil manufacturers as they provide customers with confidence in the quality, environmental responsibility, and adherence to industry standards of their products.

Q: Ok, so I'm obsessed with learning how to play the guitar (I preffer acoustic)... I'm a teenage girl that wants to play rock/pop/folk music... I want to learn first how to strum... then eventually how to pick...so what type of string is better? nylon or steel?: Nylon Guitar Strings Vs Steel

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