Cold-rolled steel
Cold-rolled steel is widely used in automotive, construction, and manufacturing industries due to its smooth surface, tight dimensional tolerances, and exceptional formability. Among the most commonly used cold-rolled steel grades, DC01 and DC03 stand out for their excellent processing performance.
DC01 is a low-carbon cold-rolled steel defined under EN 10130, mainly designed for bending and moderate forming applications. DC03 belongs to the same standard but is optimized for deeper drawing operations, offering higher ductility.
What Is DC01 Steel?
DC01 is a high-quality cold-rolled mild steel with low carbon content, known for:
- Smooth and uniform surface finish
- Excellent bending performance
- Good stamping properties
- Superior dimensional accuracy
- Wide applicability in automotive body parts, electrical enclosures, metal furniture, and household appliances
It is considered the "general-purpose" cold-rolled steel grade in the DC series.
DC01 Chemical Composition (Typical Range)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 0.60 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
| Nitrogen (N) | ≤ 0.009 |
DC01 Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | 140–280 MPa |
| Tensile Strength | 270–410 MPa |
| Elongation | ≥ 28% |
| Hardness | ≤ 60 HRB |
DC01 vs DC03 - Comparison Table
| Feature | DC01 | DC03 |
|---|---|---|
| Standard | EN 10130 | EN 10130 |
| Carbon Content | ≤0.12% | ≤0.10% |
| Yield Strength | 140–280 MPa | 140–240 MPa |
| Tensile Strength | 270–410 MPa | 270–370 MPa |
| Formability | Good | Excellent (Deep Drawing) |
| Typical Use | Bending, stamping | Deep drawing, complex shapes |
Heat Treatment Differences
- DC01:
Usually supplied as cold-rolled, annealed
Optional stress-relief annealing for improved forming
- DC03:
Fully annealed to achieve deeper drawing capability
Lower yield strength improves material stretchability
Applications of DC01 and DC03
-
DC01 Applications
Automotive interior structural parts
Metal furniture frames
Electrical cabinets and enclosures
Home appliance panels
-
DC03 Applications
Deep-drawn automotive body parts
Fuel tanks and complex housings
High-precision components requiring extra ductility
Both DC01 and DC03 are essential cold-rolled steel grades, with DC01 offering reliable formability and DC03 providing improved deep-drawing performance.
For customers seeking high-quality cold-rolled steel, GNEE STEEL supplies a full range of DC-series grades:
DC01 • DC03 • DC04 • DC05 • DC06 • DC07
Available in coils, sheets, and customized dimensions.