cold rolled steel
DC03 is a drawing-quality cold rolled steel grade defined in EN 10130, while 1.0347 is its corresponding European material number. This dual identification ensures technical consistency in international trade and manufacturing. When buyers search for DC03 cold rolled steel coil, both identifiers are commonly used to confirm compliance with European standards.
cold rolled steel
What Is DC03 Cold Rolled Steel?
DC03 cold rolled steel is a low-carbon steel designed for improved formability compared to commercial-quality grades. It offers better elongation and more stable deformation behavior, making it suitable for bending, stamping, and moderate drawing applications.
What Is Cold Rolled Steel?
Cold rolled steel is produced by rolling steel at room temperature after hot rolling and pickling. This process improves surface smoothness, thickness accuracy, and mechanical uniformity. As a result, cold rolled steel sheets and coils are widely used in industries requiring precision and surface quality.
DC03(St13) cold-rolled low carbon steel chemical composition:
Steel grade |
Chemical composition % |
|||||
|
C |
Mn |
p |
S |
Alta |
Ti b |
|
|
DC03(St13) |
≤0.08 |
≤0.45 |
≤0.030 |
≤0.025 |
≥0.020 |
- |
a: For steel grades DC03 when C≤0.01, Alt≥0.015.
b: with Nb instead of Ti, but Nb and TI total content ≤0.20
DC03(St13) cold-rolled low carbon steel mechanical performances:
Steel grade |
Yield |
Tensile |
After Breakage Percent Elongation |
r b,c |
n b, c |
|||
|
Nominal Thickness mm |
||||||||
|
<0.70 |
0.70~<1.0 |
1.0~<1.6 |
≥1.6 |
|||||
|
DC03(St13) |
120~240 |
270 |
32 |
34 |
35 |
36 |
- |
- |
a. taking R P0.2 in case of indistinct yield, otherwise R eL .
c. r=(r 90 +2r 45 +r 0 )/4; n=(n 90 +2n 45 +n 0 )/4.
DC03(St13) cold-rolled low carbon steel surface quality:
Grade |
Code No. |
Features |
|
Relatively high-grade finishing surface |
FB(O3) |
It is allowed for the existence of a few surface defects which will not affect forming and coating & plating adhesiveness such as minor scratch, impression, pit, roll mark and oxidation tint. |
|
High-grade finishing surface |
FC(O4) |
One side of relatively good quality is free from any remarkable defect visible and the other side must reach FB requirements at least. |
|
Ultra high-grade finishing surface |
FD(O5) |
One side of relatively good quality is free from any defect, namely appearance quality after painting or electrogalvanizing is no affected, and the other side must reach FB requirements at least. |
DC03(St13) cold-rolled low carbon steel reference list of equivalent steel grades:
|
|
Q/BQB 403-2003 |
BZJ 492-2004 |
EN 10130-1999 |
EN 10130-1999 |
D2N 1623-(1)-1983 |
GB/T 5213-2001 |
Q/BQB 403-1999 BZJ407-1999 |
|
Steel grade |
DC03(St13) |
DC03(St13) |
DC03 |
FeP03 |
RRSt13 |
- |
St13 |
Why Choose GNEE STEEL?
GNEE STEEL is a professional cold rolled steel sheet and coil manufacturer with stable production capacity and strict quality control. The factory supplies DC01, DC03, DC04, and DC05 cold rolled steel with consistent mechanical performance and reliable surface quality.
By choosing GNEE STEEL, customers benefit from:
- Direct factory supply
- Customized sizes and tolerances
- Stable quality for long-term projects
- Export-standard packaging and logistics support
