Why is cold-rolled DC03 so popular in the manufacturing industry?

Nov 24, 2025 Leave a message

DC03 – Cold rolled steel

 

DC03, when electrolytically galvanized in accordance with DIN EN 10152, is given an additional corrosion protection layer of zinc. This layer protects the material from oxidative influences and significantly increases the service life of the components made from it. The zinc coating can be applied in various thicknesses, depending on the specific requirements of the application. Typical coating thicknesses range from 5 to 20 µm.

 

The use of DC03 in accordance with DIN EN 10152 is widespread in the automotive industry, in the construction industry and in the manufacture of household appliances, where improved corrosion resistance is required in addition to high formability. Electrolytic galvanizing offers optimum protection here without impairing the excellent mechanical properties of the base material.

 

It can be said that the deep-drawing grade DC03 offers a wide range of applications in accordance with both DIN EN 10130 and DIN EN 10152. While DIN EN 10130 focuses on high formability and surface quality, DIN EN 10152 supplements these properties with improved corrosion resistance thanks to the zinc coating. Both standards ensure that DC03 is a reliable and high-quality material for numerous industrial applications.

 

Quality Standard Material No. Old designation
DC03 DIN EN 10130 1.0347 St 13-03
DC03+ZE DIN EN 10152 1.0347 St 13-03

 

Testing direction Yield point Rp0,2
(MPa)
Tensil Strength
Rm (MPa)
Elongation
A80 (in %)
r90
Q ≤ 240 270 – 370 ≥ 34 ≥ 1,3

 

C
%
Mn
%
P
%
S
%
≤ 0,10 ≤ 0,45 ≤ 0,035 ≤ 0,035

 

DC01 – This grade can be used for simple forming work, e.g. bending, embossing, beading and drawing.
DC03 – This grade is suitable for forming requirements such as deep drawing and difficult profiling.
DC04 – This grade is suitable for high forming requirements.
DC05 – This deep-drawing grade is suitable for higher forming requirements.
DC06 – This special deep-drawing grade is suitable for the highest forming requirements.
DC07 – This super deep-drawing grade is suitable for extreme forming requirements.

 

DC03 – Cold Rolled Steel