DC03 steel grade
What Is Cold Rolled Steel?
Cold rolled steel is produced by further processing hot rolled steel at room temperature. After hot rolling, the steel is pickled to remove surface scale and then passed through cold rolling mills to achieve precise thickness, improved surface finish, and enhanced mechanical uniformity. Compared with hot rolled steel, cold rolled steel sheet and coil offer better flatness, tighter tolerances, and superior surface quality, making them ideal for precision forming and appearance-sensitive applications.
DC03 is a widely used cold rolled steel grade defined under the EN 10130 standard. It is designed for improved formability compared with basic commercial grades, making it suitable for more demanding stamping and drawing operations.
Cold Rolled Steel Package
What Does the DC03 Cold Rolled Steel Grade Mean?
The designation DC03 follows a standardized naming system:
- D – Flat steel products for cold forming
- C – Cold rolled
- 03 – Drawing quality grade
DC03 cold rolled steel is specifically intended for deeper drawing and more complex forming than DC01. It is commonly supplied in sheet and coil form and used in manufacturing processes where higher ductility and lower yield strength are required.
DC03 Steel Chemical Composition
DC03 is a low-carbon steel with tightly controlled chemical limits to ensure good formability:
| Element | Maximum Content (%) |
|---|---|
| Carbon (C) | 0.08 |
| Manganese (Mn) | 0.60 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.045 |
The reduced carbon content compared with DC01 improves elongation and drawing performance.
Mechanical Properties and DC03 Yield Strength
DC03 yield strength is lower than that of general-purpose cold rolled steel, allowing the material to deform more easily during forming.
| Property | Typical Value |
|---|---|
| Yield Strength | ≤ 240 MPa |
| Tensile Strength | 270–370 MPa |
| Elongation | ≥ 34% |
Lower yield strength combined with higher elongation makes DC03 cold rolled steel ideal for stamping, bending, and deep drawing operations with reduced risk of cracking.
DC03 vs DC01: Key Differences in Performance
DC03 and DC01 are both EN 10130 cold rolled steel grades, but they are designed for different forming requirements:
| Comparison Item | DC01 | DC03 |
|---|---|---|
| Formability | General forming | Deep drawing |
| Yield Strength | Higher | Lower |
| Elongation | Standard | Higher |
| Typical Applications | Panels, brackets | Complex stamped parts |
DC01 is suitable for simple shapes and cost-sensitive applications, while DC03 is preferred for parts requiring more deformation.
Typical Applications of DC03 Cold Rolled Steel
DC03 steel sheet and coil are widely used in:
- Automotive interior components
- Appliance housings with complex shapes
- Metal enclosures and covers
- Furniture parts requiring smooth curves
- Precision stamped components
Its smooth surface also makes DC03 suitable for painting, galvanizing, and other surface treatments.
GNEE STEEL supplies a complete range of cold rolled steel grades, including DC01, DC03, DC04, DC05, and DC06. Our cold rolled steel sheets and coils offer stable yield strength, excellent surface quality, and consistent forming performance, supporting manufacturers with diverse cold forming requirements.