Cold-rolled steel
Cold-rolled steel is widely used in automotive manufacturing, household appliances, construction components, and precision-formed metal products due to its smooth surface finish, consistent thickness, and excellent mechanical properties. Among the numerous cold-rolled steel grades, DC01 and DC05 are two frequently requested materials, especially by clients seeking high-quality deep-drawing or general forming steels. Understanding the difference between these two grades helps engineers and buyers choose the correct material for production efficiency and cost optimization.
1. What Is DC01 Cold-Rolled Steel?
DC01 is a low-carbon cold-rolled steel grade defined under EN 10130, mainly used for simple bending, forming, and moderate-drawing applications. It offers a balance of strength and ductility, making it a popular general-purpose metal for stamped components, profiles, and automotive interior parts.
DC01 Typical Chemical Composition
| Element | Max % |
|---|---|
| C | 0.12 |
| Mn | 0.60 |
| P | 0.045 |
| S | 0.045 |
DC01 Mechanical Properties
| Property | Typical Value |
|---|---|
| Yield Strength | 140–280 MPa |
| Tensile Strength | 270–410 MPa |
| Elongation | 28–34% |
2. What Is DC05 Cold-Rolled Steel?
DC05 is a deep-drawing grade cold-rolled steel with significantly higher formability than DC01. It is designed for complex shapes, severe deformation, and parts requiring high dimensional accuracy, such as automotive body panels and household appliance casings.
DC05 Typical Chemical Composition
| Element | Max % |
|---|---|
| C | 0.10 |
| Mn | 0.45 |
| P | 0.030 |
| S | 0.030 |
DC05 Mechanical Properties
| Property | Typical Value |
|---|---|
| Yield Strength | 120–210 MPa |
| Tensile Strength | 260–350 MPa |
| Elongation | 34–40% |
3. DC01 vs. DC05: What Are the Main Differences?
| Feature / Property | DC01 | DC05 | Difference |
|---|---|---|---|
| Formability | Medium | Very High | DC05 is more suitable for deep drawing |
| Carbon Content | Slightly higher | Lower | DC05 has better ductility |
| Cost | Lower | Higher | DC01 is more economical |
| Application Complexity | Normal forming | Complex / deep drawing | DC05 handles severe deformation |
| Surface Quality | Good | Excellent | DC05 preferred for visible surfaces |
DC01 is typically used for general forming, while DC05 is preferred when deep drawing and highly complex shapes are required.
4. Applications Comparison
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DC01 Applications
Automotive interior brackets, seat frames
Electrical cabinet components
Cold-formed profiles
Bending and roll-forming parts
General stamping components
-
DC05 Applications
Auto body outer panels
Kitchen appliance shells
Complex drawn housings
Precision automotive components
Deep-drawn consumer goods
GNEE STEEL supplies high-purity, strictly-tested cold-rolled coils and sheets, ensuring consistent performance for cold stamping, precision forming, and deep drawing. With global export experience and large-scale production resources, the company provides stable supply and customized dimensional tolerances to support manufacturers worldwide.
