Carbon Steel: Properties, Production, Examples and Applications
Carbon steel is an iron-carbon alloy, which contains up to 2.1 wt.% carbon. For carbon steels, there is no minimum specified content of other alloying elements, however, they often contain manganese. The maximum manganese, silicon and copper content should be less than 1.65 wt.%, 0.6 wt.% and 0.6 wt.%, respectively.
Types of carbon steel and their properties
Carbon steel can be classified into three categories according to its carbon content: low-carbon steel (or mild-carbon steel), medium-carbon steel and high-carbon steel . Their carbon content, microstructure and properties compare as follows:
| Carbon content (wt.%) | Microstructure | Properties | Examples |
|
| Low-carbon steel | < 0.25 | Ferrite, pearlite | Low hardness and cost. High ductility, toughness, machinability and weldability | AISI 304, ASTM A815, AISI 316L |
| Medium-carbon steel | 0.25 – 0.60 | Martensite | Low hardenability, medium strength, ductility and toughness | AISI 409, ASTM A29, SCM435 |
| High-carbon steel | 0.60 – 1.25 | Pearlite | High hardness, strength, low ductility | AISI 440C, EN 10088-3 |
Carbon Steel Description
Grade:
1)GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E
2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q
3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80
4)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE
PRODUCT DETAILS
| DC01/DC02/DC03/DC04
Cold Rolled Steel Plate |
| DC
steel plates have high tensile strength and elongation, giving them good
processing properties during the manufacturing process and is easy to bend,
stamp, form and weld. This makes DC steel plates widely used in the
manufacturing of automotive parts, home appliances, construction and other
parts that require high strength and precision. DC steel plates’ s low carbon content gives
them excellent weldability and machinability. They can be processed through
various welding and cutting processes, such as arc welding, gas shielded
welding, laser cutting, etc., to meet the needs of material processing
performance in different fields. Lastly, the carbon emission is low and meets
the requirements of environmental protection and sustainable development. |
| Product Parameters |
| Product Name | DC01/DC02/DC03/DC04 Cold Rolled Steel Plate |
| Production Process | Hot Rolling, Cold Rolling |
| Material Standards | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc. |
| Width | 100mm-3000mm |
| Length | 1m-12m, or Customized Size |
| Thickness | 0.1mm-400mm |
| Delivery Conditions | Rolling, Annealing, Quenching, Tempered or Standard |
| Surface Process | Ordinary, Wire Drawing, Laminated Film |
| Chemical
Composition |
| C: max.
0,08 % |
| Mn: max.
0,40 % |
| P: max.
0,03 % |
| S: max.
0,03 % |
| Mechanical Properties |
| Steel Grade | Yield Strength (MPa) min | Tensile Strength (MPa) min | Elongation | Old Description |
| % min |
| DC01 | ≤280 | 270-410 | 28 | St 12-03 |
| DC03 | ≤240 | 270-370 | 34 | St 13-03 |
| DC04 | ≤210 | 270-350 | 38 | St 14-03 |
| DC05 | ≤180 | 270-330 | 40 | St 15-03 |
| DC06 | ≤170 | 270-330 | 41 | - |
| DC07 | ≤150 | 250-310 | 44 | - |
| Scope of
Application |
| DC01 can
be used for simple forming work, for example Bending, embossing, beading and
pulling. |
| DC03 is
suitable for forming requirements like Deep drawing and difficult profiles
suitable. |
| DC04 is
suitable for high deformation requirements. |
| DC05 is
a thermal forming grade, it is suitable for higher forming
requirements. |
| DC06 is
a grade for special deep drawing, suitable for the higher deformation
requirements. |
| DC07,
this superior deep drawing quality is suitable for highest deformation
requirements. |