Cold Rolled Coils
WANZHI STEEL is a manufacturer of cold rolled steel in different specifications and grades, with an annual production capacity of about 200,000 tons and a stock of commonly used cold rolled steel.
Factory address: Shandong, China
Grade: Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345 A(B);SPCC, SPCD, SPCE, ST12-15; DC01-06etc.
Thickness: 0.5- 3.0mm or as required
Width: 600 – 1250mm or as required
Transportation：By sea or Land transportation
Ensure product quality and transportation
Introduction of Cold Rolled Steel Coil:
Cold Rolled Steel Coil (CRC) is a steel produced by cold rolling on the basis of hot rolled steel, first rolled at room temperature and then rolled again at a temperature below its crystallization temperature, the cold rolled steel coils produced under this process are accurate in dimensions, beautiful in appearance and have good mechanical properties.Wanzhi Steel has a wide range of Cold Rolled Steel Coil grades, to know more about Cold Rolled Steel Coil grades, please contact us.
Cold rolled coils parameters
| Item | Colo Rolled Steel Coil |
| Thickness | 0.5 -3mm |
| Width | 600 -1250mm |
| Coil Weight | 5-13.5 tons or as required |
| Grade | Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345 A(B); SPCC, SPCD, SPCE, ST12-15; DC01-06etc. |
| Hardness | Softy, Halfhard, Hardquality |
| Surface | Coating, spraying, embossing, electroplating, etc. |
| Annual production | 200,000 Tons |
| Delivery Time | 7-30 days (mainly depending on the order quantity) |
| Processing Service | Bending, Cutting, Slitting, Punching, etc. |
| Package | Standard Export Package |
Cold rolled coil production video
Cold rolled steel production process
Raw material (hot rolled steel) → raw material pickling → cold rolling → degreasing → annealing → coiling → packaging, the following cold rolled steel production process is described in detail:
1, pickling: hot rolled coils through the pickling line, the use of hydrochloric acid solution to remove the surface oxide skin. Through the pickling process, less surface defects are left behind.
2, cold rolling: pickled coils are rolled to the specified thickness in a cold rolling mill.
3, annealing: through electrolytic cleaning to remove lubricants and contaminants, the coil will be continuous annealing process. The purpose is to manufacture steel with high tensile strength.
4, coiling and packaging: annealed cold rolled coils are transported to the coiling equipment for coiling, followed by inspection and packaging.
Cold rolled steel coil characteristics
1. high strength: cold rolled steel as far as physical properties are concerned, cold rolled steel is stronger, the strength is 20% higher than hot rolled steel.
2. smooth surface: due to the cold rolled steel surface is not easy to oxidize, cold rolled steel surface shows a very good finish, and easier to paint.
3. More accurate dimensions: Cold rolled steel has higher accuracy in longitudinal and transverse dimensions due to the characteristics of the production process.
Cold rolled steel coil applications
Cold rolled coils are often used in areas with high quality requirements for dimensional tolerances, strength and surface finish. For example, they are used for corrosion-resistant parts of automobiles, household appliance shells, civil chimneys, kitchen utensils, roofing panels, roofing grills, etc. Cold rolled steel coils are also materials for galvanized lines, aluminized zinc lines and color coated lines.
Cold rolled steel theoretical weight table
| Thickness/mm | Theoretical weight /(kg/m²) | Thickness/mm | Theoretical weight /(kg/m²) | Thickness/mm | Theoretical weight /(kg/m²) |
| 0.2 | 1.57 | 0.9 | 7.065 | 2.5 | 19.625 |
| 0.25 | 1.936 | 1 | 7.85 | 2.8 | 21.98 |
| 0.3 | 2.355 | 1.1 | 8.635 | 3 | 23. 550 |
| 0.35 | 2.748 | 1.2 | 9.42 | 3.2 | 25.12 |
| 0. 40 | 3.14 | 1.3 | 10.205 | 3.5 | 27. 475 |
| 0.45 | 3.533 | 1.4 | 10.99 | 3.8 | 29.83 |
| 0.55 | 4.318 | 1.5 | 11.775 | 3.9 | 30.615 |
| 0.6 | 4.71 | 1.6 | 12.56 | 4 | 31. 400 |
| 0.65 | 5.103 | 1.7 | 13.345 | 4.2 | 32.97 |
| 0.7 | 5.495 | 1.8 | 14.13 | 4.5 | 35. 325 |
| 0.75 | 5.888 | 2 | 15.7 | 4.8 | 37.68 |
| 0.8 | 6.28 | 2.2 | 17.27 | 5 | 39.25 |
Cold rolled steel sheet weight calculation formula
Weight = thickness (mm) × length (m) × width (m) × 7.85 (g/cm³)
- Thickness: The thickness of the cold-rolled steel sheet, in millimeters (mm).
- Length: The length of the cold-rolled steel sheet, in meters (m).
- Width: The width of the cold-rolled steel sheet, in meters (m).
- 7.85: The density of the cold-rolled steel sheet (g/cm³).
Buy cold rolled coil from manufacturer
There are many suppliers of cold rolled coils, when choosing a supplier, you must choose a powerful and reputable factory, such as WANZHI steel, WANZHI steel is a steel manufacturer in China, the factory is located in Boxing County, Shandong Province, with a professional technical team, strict quality management system, and produce cold rolled coils, with high dimensional accuracy, beautiful surface and good performance. If you have the need to order cold rolled steel coil, please feel free to contact WANZHI steel.
