What is DC01 and DC04 steel?
DC01 steel, or 1.0330, is a non-alloy quality steel with low carbon. Made as flat sheets by cold rolling, it has a smooth surface and good formability. Types include DC01-A, DC01-B, and electro-galvanized DC01+ZE (1.0330+ZE) under EN 10152. Related standards are EN 10130 and EN 10131. Variants DC03 to DC07 offer better formability. It is used for automotive parts, appliances, and metal products.
DC04 is a low-carbon steel that impresses with its exceptional cold formability. The chemical composition of DC04 is precisely balanced to ensure that the material has the desired mechanical properties. The carbon content in DC04 is typically a maximum of 0.08 %, while the manganese content is a maximum of 0.40 %. This composition supports the high formability and weldability of the steel, making it ideal for demanding forming processes.
In the cold-rolled steel market, DC01 and DC04 are two of the most frequently requested grades, especially among manufacturers involved in stamping, forming, and precision metal fabrication. Although both belong to the EN 10130 standard, their mechanical properties and forming capabilities differ significantly, making each grade suitable for specific applications.
Understanding the differences between DC01 and DC04 helps buyers choose the right material for automotive parts, home appliances, electrical enclosures, and deep-drawing components.
1. Basic Definition of DC01 and DC04
DC01 Cold-Rolled Steel
A general-purpose cold-rolled grade commonly used for bending, light stamping, and moderate forming. It offers stable mechanical strength and excellent surface quality.
DC04 Cold-Rolled Steel
A higher-ductility grade designed for deeper drawing processes. It provides superior elongation, lower yield strength, and improved formability compared to DC01.
2. Mechanical Property Comparison
The key difference lies in ductility and formability. DC04 provides higher deep-drawing performance, making it suitable for complex shapes.
| Property | DC01 | DC04 |
|---|---|---|
| Yield Strength (MPa) | Approx. 140–280 | Approx. 120–210 |
| Tensile Strength (MPa) | 270–410 | 260–370 |
| Elongation (%) | 28–34 | 34–40 |
| Formability | Good | Excellent |
| Deep-Drawing Ability | Moderate | High |
From the table, DC04 clearly demonstrates better elongation and lower yield strength - two critical features for deep-drawn applications.
3. Applications of DC01 vs. DC04
Because the two grades serve different manufacturing needs, choosing the correct one can improve production efficiency and reduce material waste.
Typical Uses of DC01
- Electrical boxes and enclosures
- Shelving systems
- Light automotive parts
- Metal furniture
- General stamping components
Typical Uses of DC04
- Automotive outer/inner panels
- High-precision deep-drawn parts
- Appliance housings
- Filter components
- Complex-shaped metal casings
- In industries where shape complexity is high and forming depth is critical, DC04 provides significantly better performance.
4. Surface Quality and Processing Stability
Both grades offer excellent surface finish due to high-precision cold-rolling and annealing processes. However:
DC01: Best for general forming and moderate drawing
DC04: Preferred for strict surface requirements and deep drawing, reducing the risk of cracks and wrinkles during shaping
5. How to Choose Between DC01 and DC04?
Buyers should consider:
| Requirement | Recommended Grade |
|---|---|
| General stamping | DC01 |
| Tight-radius bending | DC04 |
| Deep drawing | DC04 |
| Cost-efficient forming | DC01 |
| High surface quality | DC04 |
DC01 and DC04 are both excellent cold-rolled steel options, but they serve different levels of forming difficulty. DC01 is ideal for everyday stamping, while DC04 offers superior performance for deep-drawn, complex shapes.
Manufacturers looking for stable supply and customized sizes can contact the GNEE STEEL team for detailed specifications, coil availability, and competitive pricing for DC01, DC04, DC03, DC05, and other cold-rolled series grades.
