Cold Rolled Steel Sheet

Cold rolled steel plate is a kind of steel plate processed by cold rolling. The process is that the hot rolled steel plate is first annealed and cooled down to room temperature, and then rolled by cold rolling equipment to form a steel plate with high strength, high toughness and good surface quality. Compared with hot-rolled steel, cold-rolled steel has higher surface finish, higher dimensional accuracy, and no defects such as oxide skin and grain boundary coarsening on the surface of hot-rolled steel. Cold rolled steel plate is widely used in automobile, electrical appliances, construction, machinery and other fields.

The parameters of cold-rolled steel plate are the followings:

1. Thickness: generally 0.4-3mm, the greater the thickness, the better the strength and pressure resistance.

2. Width: generally 600-2000mm, the larger the width can improve production efficiency, but also correspondingly higher costs.

3. Length: generally 2000-12000mm, the length is determined according to the specific requirements in the design and manufacture.

4. Steel grade: Different steel grades have different mechanical properties, chemical composition and other characteristics.

5. Surface treatment: including galvanization, anti-corrosion treatment, etc.

6. Strength: refers to the tensile strength of the steel plate, generally expressed in MPa.

7. Rolling method: The common rolling methods of cold rolling include cold rolled, cold drawn, cold bent, cold squeezed, etc.

8. Organizational structure: It can be tested by load test, metallographic microanalysis and other means.

1. Smooth and flat surface, not easy to appear defects such as dents and bubbles.

2. Excellent mechanical properties of steel plate, high strength and wear resistance.

3. The cost of cold-rolled steel plate is relatively low, and the production efficiency is high.

4. The corrosion resistance of cold-rolled steel sheet is good, and it is not easy to rust in wet environment.

5. The processing performance of cold-rolled steel plate is good, and it can be processed by deep punching, bending and welding.

Cold-rolled steel plate is a steel plate obtained by calendering process at room temperature. It has the advantages of flat surface, accurate size, high hardness, good corrosion resistance, etc. It is widely used in shipbuilding, construction, automobile manufacturing, home appliance manufacturing, electric power industry, machinery manufacturing, chemical industry, petroleum industry and other fields. Specific applications include:

1. Construction engineering: Cold-rolled steel sheets can be used in building structures, roof panels, wall panels, roof racks, partition panels, floor panels, etc.

2. Automobile manufacturing: Cold-rolled steel sheets can be used for automobile body, chassis, hood, doors, luggage compartment and other parts.

3. Home appliance manufacturing: Cold-rolled steel sheets can be used for TV housings, air conditioner housings, washing machine housings, refrigerator door panels, oven housings, etc.

4. Electric power industry: Cold-rolled steel sheets can be used for electric power equipment, transformers, cable bridges, power transmission towers, etc.

5. Machinery manufacturing: Cold-rolled steel plate can be used for assembling machinery, manufacturing bearings, tools, etc.

6. Chemical industry: Cold rolled steel plate can be used to build chemical containers, storage tanks, transport pipelines, reactors, etc.

7. Petroleum industry: Cold rolled steel plate can be used to build oil drilling platform, drilling pipe column, pipeline, storage tank, oil pipeline, etc.

1. Surface quality problems: Cold rolled steel plate may have surface pits, burrs, scratches, local passivation and other problems in the manufacturing process, which will affect its appearance quality and service life.

2. Dimensional control problems: The thickness, width and length of cold-rolled steel sheets require high control, and improper control during production will lead to dimensional deviation, which will affect subsequent processing and use.

3. Strength, toughness and other mechanical properties: Cold-rolled steel may be affected by bending, bending, processing and other processes in the manufacturing process, resulting in problems with its mechanical properties, such as reduced strength and poor toughness.

4. Processing difficulties: Cold-rolled steel plate surface hardness is high, processing requires the use of special cutting tools and tool materials, and control cutting parameters, otherwise it will lead to poor processing, serious tool wear and other problems.

5. Accuracy and flatness problem: The cold-rolled steel plate requires high accuracy and flatness, otherwise it will cause problems in processing and use, such as bad grooves, surface ripples, unevenness and other adverse effects.

We use standard export transportation packaging and bundle steel strips according to the size of carbon steel plates. According to our shipping experience, a 20-foot container can hold 22 tons of carbon steel, and a 40-foot container can hold 25 tons of carbon steel. For larger orders, we use bulk carriers to transport them for you at a cheaper price. In addition, we can customize packaging according to customer needs.

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