DC01 Cold Rolled Steel
What is DC01 Steel?
DC01 represents the basic grade of the DC steel family and is also known under the former designations St12 or FeP01. This grade can be used for simple forming operations such as bending, coining, beading and drawing.
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.
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.
Mild low-carbon steel for cold forming
DC01 | 1.0330: Properties according to DIN EN 10 130
Steel type
| Short designation | VDA239-100 | Material number |
| DC01 | CR1 | 1.0330 |
* Comparative grade, therefore minor deviations from DIN EN values possible
DC01 | 1.0330: Mechanical properties (transverse)
| Yield strength1) Re MPa max. | Tensile strength Rm MPa | Elongation at fracture2) % min. A80 | Anisotropy r903)4) min. | Strain hardening exponent n903) min. |
| 280 | 270-410 | 28 | - | - |
DC01 | 1.0330: Chemical composition (heat analysis)
| Percentage by weight % max. | ||||
| C | P | S | Mn | Ti |
| 0.12 | 0.045 | 0.045 | 0.60 | - |
1) Where no yield strength is defined, the respective values shall apply to the 0.2 % proof stress (Rp0.2) or to the lower yield strength (ReL). For thicknesses ≤ 0.7 mm but > 0.5 mm, the maximum yield strength values may be 20 MPa higher. In case of thicknesses ≤ 0.5 mm, the maximum yield limits may be 40 MPa higher.
2) For thicknesses ≤ 0.7 mm but > 0.5 mm, the minimum elongation at fracture may be 2 units lower. For thicknesses ≤ 0.5 mm, the minimum elongation at fracture may be 4 units lower.
3) The r90 and n90 values apply to product thicknesses ≥ 0.5 mm only.
4) For thicknesses > 2 mm, the r90-value is reduced by 0.2.
FAQ
What is DC01 steel used for?
DC01 steel is mainly used in automotive panels, appliance housings, furniture, electrical enclosures, and precision-formed components where smooth surface finish and dimensional accuracy are essential.
Is DC01 good for welding?
Yes. DC01 steel has excellent weldability due to its low carbon content, making it suitable for spot, seam, and arc welding without significant risk of cracking or distortion.
What is the difference between DC01 and DC03?
The main difference lies in formability; DC03 contains slightly lower carbon and higher elongation than DC01, allowing it to withstand deeper drawing and more complex forming operations.
Does DC01 need surface treatment?
Although DC01 can be used untreated, surface coatings such as galvanizing, phosphating, or painting are often applied to improve corrosion resistance and aesthetic finish.
What standard defines DC01 steel?
DC01 steel is defined under the EN 10130 standard, which specifies cold-rolled low-carbon steel sheets and strips for cold-forming applications.
