• Cold Rolled Steel Coil/Plates with High Quality from CNBM System 1
  • Cold Rolled Steel Coil/Plates with High Quality from CNBM System 2
  • Cold Rolled Steel Coil/Plates with High Quality from CNBM System 3
Cold Rolled Steel Coil/Plates with High Quality from CNBM

Cold Rolled Steel Coil/Plates with High Quality from CNBM

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 m.t.
Supply Capability:
89000000 m.t./month

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Description of cold rolled steel coil :

The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling, kinds of new technology and new process of global cold rolling production have been applied. Therefore the manufacturing, home appliance, automobile etc.


Specification of cold rolled steel coil :

1. Width: 600~1500mm

2. Thickness: 0.15~2.30mm

3. Grade: JIS G3321-SGLCC, SGLC400-570, (G550)

              EN10346-DX51D+AZ, DX53D+AZ, S250-S550

              ASTM A792M CS-B, SS255-SS550

4. Chemical Treatment: Chromated

5. Surface: Anti-Finger Print

6. Oil: Slight Oiled / Dry

7. Spangle: Regular

8. Zinc Coating: AZ50~AZ185g/m2

9. Coil Weight: 3~14MT

10. Coil ID: 508mm / 610mm

11. MOQ: 60MT per size or by negotiation


Characteristic cold rolled steel coil :

1. Refrigerators, cabinets, power distribution baords and drums.

2. Automobile floor and roof panels.

3. Automobile fenders and quarter panels

4. Automobile fenders and quarter panels


Images of cold rolled steel cold rolled steel coil:

Cold Rolled Steel Coil/Plates with High Quality from CNBM

FAQ

1.What's your MOQ?
50MT, it is for one container.
2.Whether your company have QC teams?
 Yeah, sure, our QC team is very important, they will keep the quality control for our products.
3. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness  and width ,it is about 20-40days. But don't worry ,we also try our best for the 




Q:With the Reduced weight of steel,wouldn't the projectile be at a much higher velocity when fired causing more damage?I mean l couldn't steel be worked to seal the bore,not damage the rifling and still cheap enough to mass produce,and be light enough to carry much more ammo.
Well trying to force that down a rifled barrel would be a funny trick. Please have a friend or two there to record it so they can put the blowing up of your rifle on youtube so people can learn what happens when idiots try stupid things. I'd say you should but you'll likely be dead or in hospital from the injuries. To expand your knowledge: Until you get to NIJ class 3 body armor any lead core high velocity bullet of FMJ form will go through like it's not even there. Oh pretty much anything with soft point ammunition at over 2,000fps velocity will go through with devastating effect. So lets see .. oh yes time to ban the .30-30 Winchester for civilian use. All the typical rifle caliber ammunition designated by the military as armor piercing has a copper alloy jacket around either a hardened steel core or more commonly a lead core with a hardened steel or tungsten alloy penetrator centered in that.
Q:What are the common methods of handling steel coils during production?
There are several common methods for handling steel coils during production. These methods are designed to ensure the safe movement and storage of the coils, as well as to facilitate efficient processing. 1. Forklifts: Forklifts are commonly used to move steel coils within a production facility. They are equipped with specialized attachments, such as coil rams or coil hooks, that securely grip the coil and allow for easy transport. Forklifts are ideal for moving coils over short distances or between different areas of the production floor. 2. Overhead cranes: Overhead cranes are another popular method for handling steel coils. These cranes are typically mounted on rails and can span the entire length of a production facility. They use lifting devices, such as C-hooks or magnets, to securely lift and transport the coils. Overhead cranes are particularly useful for moving large or heavy coils over longer distances. 3. Coil cars: Coil cars are specialized rail-mounted vehicles that are designed to transport steel coils within a production facility or between different areas of a steel mill. These cars feature adjustable arms or forks that can be positioned to securely hold the coils. Coil cars are often used when large quantities of coils need to be moved at once. 4. Coil racks: Coil racks are used for storing steel coils in a vertical position. These racks are typically made of heavy-duty steel and are designed to hold multiple coils securely. They are commonly used in warehouses or storage yards to maximize space and facilitate easy access to the coils. 5. Coil trailers: Coil trailers are specially designed trailers that are used for transporting steel coils over long distances. These trailers have built-in coil cradles or bunks that securely hold the coils during transit. They often feature adjustable or removable coil racks to accommodate different sizes or configurations of coils. Overall, the common methods of handling steel coils during production involve the use of specialized equipment such as forklifts, overhead cranes, coil cars, coil racks, and coil trailers. These methods prioritize the safety of the workers and the integrity of the coils, while also ensuring efficient movement and storage throughout the production process.
Q:How are steel coils used in automotive manufacturing?
Steel coils are used in automotive manufacturing to create various components such as body panels, frames, and suspension parts. These coils are unwound, shaped, and cut into specific sizes and shapes to fit the required design. The steel's strength, durability, and flexibility make it an ideal material for ensuring the safety and structural integrity of vehicles.
Q:What are the different grades of steel used for making coils?
When making coils, various grades of steel are commonly utilized, depending on specific requirements and applications. Some frequently employed grades are: 1. Mild steel, also referred to as low carbon steel, is often employed for coil production due to its favorable characteristics of formability, weldability, and machinability. It is suitable for diverse applications where strength and durability are not the primary concerns. 2. High carbon steel, which contains elevated carbon levels, offers increased strength and hardness. This grade is commonly used for coils that require high strength and resistance to wear, such as springs and automotive components. 3. Stainless steel, characterized by a high chromium content, exhibits excellent corrosion resistance. Coils made from stainless steel are commonly utilized in applications where resistance to rust and staining is critical, such as kitchen appliances, automotive trim, and medical equipment. 4. Galvanized steel, coated with a layer of zinc, provides exceptional corrosion resistance. Galvanized steel coils find common use in outdoor applications that involve exposure to moisture and other elements, including roofing, fencing, and HVAC ductwork. 5. Electrical steel, specifically designed for electrical applications like transformers, motors, and generators, possesses low impurity levels and is optimized for high magnetic permeability and low core loss. 6. Advanced high-strength steel (AHSS), engineered to offer exceptional strength while maintaining good formability, is frequently employed in the automotive industry. AHSS coils contribute to lightweighting vehicles while ensuring structural integrity and crashworthiness. These examples represent only a fraction of the steel grades employed in coil manufacturing. The choice of a specific grade depends on factors such as the intended application, desired properties, and cost considerations.
Q:I was wondering whether anyone knew if painted steels rusts at the same speed as steel that isn't painted. Also, does steel rust quicker than aluminium?Thank you
Painted Steel
Q:I'm pretty sure that this topic has been beaten to death by now. But, I still can't get a definite answer. With stainless steel, you get better corrosion resistance, and you will hold and edge longer. With carbon steel, you will hold a sharper edge, and you could forge a knife blade longer than 2 ft without breakage. I'm personally a fan of stainless steel ( the 440 grade stuff ), just because it seems to hold up to use and abuse better in the long run. HOWEVER, I have NEVER had a factory made knife break on me. I don't think that they would try to sell you a knife that didn't do what it was meant to do, at least to a reasonable degree. (I work for a living, and can't afford a custom $600 knife.) What do you think? Is this a pointless topic? Will there ever be a winner?
I hate stainless steel! I hate shiny blades also! When I was a kid knifes were awesome! You could actually sharpen them! :) If we bought a new knife we would take an orange and slice it and leave the juice on the blade to purposefully darken it. If you had a shiny blade that looked like stainless you were not cool. :) I think most anyone who had an old knife from back in the 70's or before would agree that these new stainless knives are crap. I have not seen anything perform close to the old blades in stainless. Today I bought a case CV Sod Buster hoping it will perform like the old knives. What reading I have done the Chrome Vanadium is supposed to be like the old steel. I sure hope it is. Now to find some fruit to get rid of this annoying shiny blade! :)
Q:What are the different types of steel coil surface finish treatments?
There are several different types of steel coil surface finish treatments, including hot-dip galvanizing, electro-galvanizing, zinc plating, powder coating, and painting. These treatments are applied to steel coils to enhance their durability, corrosion resistance, and aesthetic appeal.
Q:Can steel coils be coated with anti-static materials?
Yes, steel coils can be coated with anti-static materials. Anti-static coatings are often used to reduce or eliminate static electricity buildup on surfaces, including steel coils. These coatings help to prevent the accumulation of dust, reduce the risk of electrical discharge and sparks, and ensure the safe handling and storage of steel coils in various industries.
Q:How are steel coils used in various industries?
Steel coils are used in various industries for a wide range of applications. In the automotive industry, they are used to manufacture car bodies, chassis, and parts. In construction, steel coils are used in the production of beams, columns, and roofing materials. They are also utilized in the manufacturing of appliances, electrical equipment, and machinery. Additionally, steel coils are essential in the production of pipes, tubes, and other structural components. Overall, steel coils play a crucial role in providing strength, durability, and versatility to multiple industries.
Q:What are the different methods of testing steel coils for quality control?
There are several methods commonly used to test steel coils for quality control. These methods ensure that the steel coils meet the required specifications and standards. 1. Visual Inspection: This is the most basic method of testing steel coils. It involves a thorough visual examination of the coils for any surface defects such as scratches, dents, or irregularities. Visual inspection helps identify any visible defects in the material. 2. Dimensional Measurement: Another important method is dimensional measurement. This involves using various tools like calipers, micrometers, or laser measuring devices to assess the dimensions of the steel coils. The measurements are compared against the specified tolerances to ensure they meet the required standards. 3. Hardness Testing: Hardness testing determines the resistance of the steel coils to indentation or penetration. It helps assess the strength and durability of the material. Common hardness testing methods include Rockwell, Brinell, and Vickers hardness tests. 4. Tensile Strength Testing: Tensile strength testing measures the maximum amount of tensile stress a steel coil can withstand before breaking or deforming. This test helps determine the strength and elasticity of the material and ensures it meets the required specifications. 5. Chemical Analysis: Chemical analysis involves testing the composition of the steel coils to verify if they contain the desired amount of specific elements. This is crucial for ensuring the coils are made from the correct grade of steel and comply with the required chemical composition standards. 6. Coating Thickness Measurement: In case the steel coils have a protective coating, it is important to measure the thickness of the coating. This is typically done using non-destructive testing methods like magnetic induction or eddy current testing. The coating thickness is compared against the specified requirements to ensure it provides adequate protection. 7. Surface Roughness Measurement: Surface roughness testing assesses the smoothness or roughness of the steel coil's surface. This is done using instruments like profilometers or roughness testers. Surface roughness testing helps ensure the coils meet the required surface finish standards. 8. Ultrasonic Testing: Ultrasonic testing utilizes high-frequency sound waves to detect internal defects such as cracks, voids, or inclusions within the steel coils. It is a non-destructive testing method that provides valuable information about the coil's structural integrity. 9. Magnetic Particle Inspection: This method is used to identify surface and near-surface defects in steel coils. Magnetic particles are applied to the surface, and any magnetic leakage caused by defects is detected using magnetic sensors. This technique is particularly effective for detecting cracks and other surface abnormalities. By employing a combination of these testing methods, manufacturers can ensure that the steel coils produced meet the required quality standards and are suitable for their intended applications.

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