Cold Rolled Steel Coil DC04

DC04 is a high-quality deep-drawing grade cold-rolled low-carbon steel defined in the European standard EN 10130. Its core value lies in the deep-drawing performance and surface quality far exceeding that of ordinary cold-rolled sheets through precise cold-rolling process and annealing treatment, which is particularly suitable for the manufacture of parts requiring complex deformation processing.

In-depth analysis
Chemical composition (typical values according to EN 10130)

Carbon (C): ≤ 0.08%

Manganese (Mn): ≤ 0.40%

Phosphorus (P): ≤ 0.030%

Sulfur (S): ≤ 0.030%

The low alloying element content ensures excellent cold forming properties and weldability.

Mechanical properties (typical values according to EN 10130)

Yield strength (Rp0.2): 120 - 240 MPa (depending on thickness and condition)

Tensile strength (Rm): 270 - 350 MPa

Elongation at break (A80mm): ≥ 34% (generally higher for thickness ≤ 2mm)

Plastic strain ratio (r-value): ≥ 1.8 (average value, reflecting resistance to thinning)

Work hardening index (n-value): ≥ 0.20 (reflecting uniform deformation ability)

Name	Cold Rolled Steel Coil Dc04
Width	800-1250mm
Thickness	0.15-2.0mm
Elongation	30-40 percent

Automotive
In the wave of the automotive industry's transformation towards lightweight, DC04 cold rolled steel coil has demonstrated its irreplaceable value:

Thin gauge breakthrough: Handan Iron and Steel successfully rolled 0.5mm ultra-thin plates for automotive inner panels and small structural parts, reducing weight by more than 30% compared to traditional materials.

Manufacturing of complex parts: Stamping parts with complex curved surfaces such as side panels, roofs, and floors rely on its high elongation to form in one go.

Energy-saving benefits: For every ton of thin gauge DC04 plates used, the vehicle weight is reduced by about 15kg, and fuel consumption per 100 kilometers is reduced by 0.1 liters.