Cold Rolled Steel Sheet Coil
What Is DC01 Cold Rolled Steel?
DC01 is a low-carbon cold rolled steel grade defined under the EN 10130 standard. It is designed for cold forming and general-purpose applications where good surface finish and consistent mechanical performance are required. The cold rolling process improves dimensional accuracy and surface smoothness compared to hot rolled steel, making DC01 suitable for coated, painted, and decorative parts.
Due to its moderate strength and good elongation, DC01 is ideal for bending, profiling, stamping, and light drawing operations. For deeper drawing requirements, higher grades such as DC03, DC04, or DC05 are typically selected.
Cold Rolled Steel
DC01 steel (1.0330 material) is a European standard cold-rolled quality low-carbon steel flat product for cold forming. In BS and DIN EN 10130 standard, it contains 5 other steel grades: DC03 (1.0347), DC04 (1.0338), DC05 (1.0312), DC06 ( 1.0873) and DC07 (1.0898), the surface quality is divided into 2 types: DC01-A and DC01-B. In addition, this steel is also used under electrogalvanizing conditions. The designation of the steel is DC01+ZE (or 1.0330+ZE), and the standard is EN 10152.
Chemical Composition
DC01 steel chemical composition is listed in the following table based on ladle analysis.
Mechanical properties, Part-1
| Country (Region) | Standard | Chemical Composition (ladle analysis), %, ≤ | Surface quality | Deoxidation | Classification | ||||
| Steel name (Steel number) | C | Mn | P | S | |||||
| European Union | EN 10130 | DC01 (1.0330) | 0.12 | 0,60 | 0,045 | 0,045 | A, B | Manufacturer's discretion | Non-alloy quality steel |
| EN 10152 | DC01+ZE (1.0330+ZE) | A, B | |||||||
| EN 10139 | DC01-C390, C340, C440, C490, C590, C690 | – | |||||||
Notes:
EN 10130 – Cold rolled low carbon steel flat products;
EN 10152 – Electrolytically zinc coated cold rolled steel flat products.
EN 10139 – Cold rolled uncoated low carbon steel narrow strip.
DC01+ZE Steel Mechanical Properties
The table below lists DC01+ZE steel mechanical properties.
| Country (Region) | Standard | Steel name (Steel number) | Yield strength (MPa), 0.2 % offset | Tensile strength (MPa) | Elongation, ≥ % | Surface quality | Absence of stretcher strain marks |
| European Union | EN 10130 | DC01 (1.0330) | 140 (assumed) -280 | 270-410 | 28 | A, B | – |
| EN 10152 | DC01+ZE (1.0330+ZE) | 3 months |
Notes:
Yield strength: When the thickness is ≤0.7 mm but >0.5 mm, the yield strength value should be increased by 20 MPa. For thicknesses ≤0.5 mm, the value should be increased by 40 MPa.
Elongation: When the thickness is ≤0.7 mm but >0.5 mm, the minimum value of elongation should be reduced by 2 units. For thicknesses ≤0.5 mm, the minimum value shall be reduced by 4 units.Mechanical properties, Part-2
| Standard | Designation | Delivery condition | Symbol | Yield strength (MPa), 0.2 % offset | Tensile strength (MPa) | Elongation, A80, ≥ % | Elongation, A50, ≥ % | Hardness, HV | Validity of the mechanical properties |
| EN 10139 | DC01 (1.0330) | Annealed | A | – | 270 – 390 | 28 | 30 | ≤ 105 | 3 months |
| Skin passed | LC | ≤ 280 | 270 – 410 | 28 | 30 | ≤ 115 | |||
| Work hardened | C290 | 200 – 380 | 290 – 430 | 18 | 20 | 95-125 | |||
| C340 | ≥ 250 | 340 – 490 | Not required | Not required | 105-155 | ||||
| C390 | ≥ 310 | 390 – 540 | 117-172 | ||||||
| C440 | ≥ 360 | 440 – 590 | 135-185 | ||||||
| C490 | ≥ 420 | 490 – 640 | 155-200 | ||||||
| C590 | ≥ 520 | 590 – 740 | 185-225 | ||||||
| C690 | ≥ 630 | ≥ 690 | ≥ 215 |
With its balanced mechanical properties, excellent surface quality, and wide global acceptance, DC01 remains one of the most reliable cold rolled steel grades for general-purpose applications. GNEE STEEL continues to support global customers with stable supply, strict quality control, and a comprehensive range of cold rolled steel products.
FAQ:
1. What is cold rolled steel?
Cold rolled steel is a type of steel that is processed at room temperature after hot rolling. This process improves surface finish, dimensional accuracy, and mechanical properties, making cold rolled steel suitable for precision applications.
2. What is the difference between cold rolled steel and hot rolled steel?
The main difference lies in the production process. Cold rolled steel is rolled at room temperature, resulting in better surface quality, tighter tolerances, and higher strength, while hot rolled steel is rolled at high temperatures and is generally used for structural applications.
3. What are the most common cold rolled steel grades?
Common cold rolled steel grades include DC01, DC03, DC04, DC05, and DC06 according to EN 10130. These grades differ mainly in formability and mechanical properties.
4. What is DC01 cold rolled steel used for?
DC01 is widely used for general forming applications such as metal furniture, electrical cabinets, steel drums, and simple stamped parts where high formability is not required.
5. What is the difference between DC01 and DC03?
DC03 offers better deep drawing performance than DC01. It is more suitable for complex stamping and forming processes, while DC01 is used for basic bending and light forming.
