Cold Rolled Carbon Steel Coil (CRC)
Cold rolled carbon steel coil is a finished flat product manufactured by further processing hot rolled coil at room temperature to achieve superior surface finish, precise dimensions, and enhanced mechanical properties.
Material
Low Carbon Steel. Representative grades include ASTM A1008 CS Types A, B, C; ASTM A1008 DS Types A, B; EN 10130 DC01, DC03, DC04, DC05; JIS G3141 SPCC, SPCD, SPCE; GB/T 5213 SPCC.
Model
CRC
Size
Standard widths range from 600 mm to 2100 mm, with precision slitting available for specific strip widths.
Thickness
0.30 mm to 3.00 mm.
Standard
ASTM A1008/A1008M, ASTM A109/A109M; EN 10130, EN 10139; JIS G3141; GB/T 5213.
MOQ
20 Metric Tons.
Delivery Time
Standard lead time is 4 to 7 weeks from order confirmation.
Long Description
Cold rolled carbon steel coil (CRC) is produced by cleaning and pickling hot rolled coil to remove mill scale, then rolling it at ambient temperature on a tandem mill. This cold reduction process work-hardens the steel, increasing its strength and hardness while achieving very tight thickness and width tolerances. The coils are subsequently annealed in a controlled atmosphere to restore ductility and achieve specific mechanical properties (temper), followed by optional skin passing or tension leveling for flatness. This product form is characterized by its smooth, clean surface, excellent formability, and consistency, making it the preferred material for applications where appearance, precise fabrication, and paint adhesion are critical. It serves as the direct input material for a wide range of finishing, forming, and coating processes.
Key Product Highlights
Cold rolled coil provides an exceptionally smooth and clean surface finish ideal for painting or plating.
The product offers superior dimensional accuracy and consistency compared to hot rolled equivalents.
It is available in a range of tempers from soft, fully annealed to hard, full-hard to suit different forming needs.
The manufacturing process ensures uniform mechanical properties throughout the coil length and width.
This coil form is optimized for high-speed stamping, roll forming, and other precision fabrication methods.
Product Advantages
Controlled annealing and temper rolling deliver predictable and consistent formability and springback characteristics.
Precise gauge control minimizes material waste and ensures reliability in automated production environments.
The surface is free of scale and imperfections, reducing pre-treatment steps before finishing.
Standard packaging and handling preserve the surface quality during storage and international logistics.
Full material certification provides traceability for critical manufacturing and quality assurance protocols.
Industry Application
This coil is primarily used for manufacturing automotive body panels, appliance housings, electrical cabinets, furniture, lighting fixtures, and general metal stampings and formed parts.
Technical Specifications
| Parameter | Unit | Hot Rolled Coil | Cold Rolled Coil | Notes |
|---|---|---|---|---|
| Carbon Content (C) | % | 0.05 – 0.25 | 0.05 – 0.15 | Typical for common forming grades. |
| Manganese (Mn) | % | 0.30 – 1.50 | 0.20 – 0.60 | Lower Mn common in cold rolled grades. |
| Phosphorus (P) | % | ≤ 0.040 | ≤ 0.035 | Tighter control for improved formability. |
| Sulfur (S) | % | ≤ 0.040 | ≤ 0.035 | Tighter control for improved formability. |
| Tensile Strength | MPa | 350 – 550 | 270 – 550 | CRC range depends on temper (annealed to full-hard). |
| Yield Strength | MPa | 235 – 450 | 180 – 550 | CRC range depends on temper. |
| Elongation | % | 20 – 30 | 30 – 45 | CRC shows higher elongation in annealed tempers. |
| Hardness | HRB | N/A | 40 – 90 | Rockwell B scale common for CRC; varies with temper. |
| Thickness | mm | 1.5 – 25.4 | 0.3 – 3.0 | Product form defines the standard range. |
| Width | mm | 600 – 2200 | 600 – 2100 | Product form defines the standard range. |
| Coil Weight | MT | 10 – 35 | 5 – 25 | Typical export coil weight. |
| Surface Treatment | – | Mill Scale | Clean, Oiled | CRC is typically supplied with a protective oil film. |
| Coating / Finish | – | None (mill scale) | Oiled (DOS or TFO), Dry (Dry Film) | Standard finishes are Oiled or Dry for painting. |
| Rolling Type | – | Hot Rolling | Cold Rolling | Defines the fundamental manufacturing process. |
| Standard Example | – | ASTM A36 | ASTM A1008 CS Type B | Representative commercial quality standard. |
Packaging & Surface Treatment
Coils are packaged for export with extreme care to protect the surface finish. They are typically wound on a cardboard or steel sleeve, wrapped in multiple layers of waterproof VCI (Vapor Corrosion Inhibitor) paper and heavy-gauge plastic, and secured on steel skids with protective edge guards and steel strapping. Standard surface conditions include Oiled (with a light rust preventive oil like DOS or TFO) or Dry (with a dry film lubricant or clean, dry finish for immediate painting).
Aliases Names
CRC, Cold Reduced Coil, CR Coil, Cold Rolled Sheet Coil, Cold Rolled Steel Coil.
