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 |
| Medium-carbon steel | 0.25 – 0.60 | Martensite | Low hardenability, medium strength, ductility and toughness |
| High-carbon steel | 0.60 – 1.25 | Pearlite | High hardness, strength, low ductility |
Carbon Steel DescriptionGrade: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, Q690E2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 804)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHEPRODUCT DETAILS
| Product Name | Carbon steel plate |
| Standard | ASTM,AISI,DIN,EN,BS,SUS, JIS |
| Material | Q195 ,Q215 ,Q235 ,Q255 ,Q275 ,SS330 , SS400, SS490, SS540, S185JR, S235JR, S235JRG1, S235J0, S275J0, S275J2G3ASTM 1010, 1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1080, 1022 A53, A106, A192, A315b, ST33, ST37, ST35.8, ST42, ST45, ST52S10C, S20C, S25C, S30C, S40C, S45C, S55C, S58C, SK5, C10, C20, C30, C45, C45, C60, C22E, C30E, C40E, C45E, C55E, C60E, C67E, C75E, C85E, CK22, CK25, CK30, CK35, CK45, CK50, CK60, CK67 |
| Technique | Cold Rolled, Hot Rolled |
| Thickness | 1~50mm and customizable |
| Length | 500-3000mm and customizable |
| width | 0-12mm or customizable |
| Surface Treatment | Mirror surface,polishing |
| Type | Plate |
| Origin | China |
| HS Code | 7209250000 |
| Delivery Time | 7-15 days，depends on quantity ordered |
| After-sales Service | 24 hours online |
| Production Capacity | 100000 Tons/Year |
| Loading Port | Any port in China |
| Section Shape | Rectangle |
| Application | 1.Automobile, Bridges, Buildings.
2.Machinery, Pressure vessel industries.
3.Ship building, Engineering construction.
4.Mechanical manufacturing, Pavement slab, ect. |
| Packaging | Standard Sea-worthy Packaging |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
| Tolerance | ±1% |
| MOQ | 5 tons |
| Payment Terms | TT, LC,Cash, Paypal, DP, DA,Western Union or Others. |
| Terms Of Trade | EXW,FOB, CRF, CIF ,CNF or others |
| Standard | Grade | General Size | Delivery Condition |
| ASTM A36 | A36/A36-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A283 | A283-B/A283C | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A572 | A572Gr50-B/A572Gr42-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A515 | A515Gr70 | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| ASTM A516 | A516Gr70 | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| JIS G 3101 | SS400-B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| JIS G3136 | SN400B | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| EN10025-2:2004 | S235JR-S355K2+N | 5-20 * 2300-2500 * C | Boron added or Black Condition |
| EN10025-5:2004 | S355J2W/S355K2W | 5-20 * 2300-2500 * C | Boron added or Black Condition |
Carbon Steel: Properties, Production, Examples and ApplicationsCarbon 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 [1]. 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 |
| Medium-carbon steel | 0.25 – 0.60 | Martensite | Low hardenability, medium strength, ductility and toughness |
| High-carbon steel | 0.60 – 1.25 | Pearlite | High hardness, strength, low ductility |
Carbon Steel DescriptionGrade: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, Q690E2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 804)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHEPRODUCT DETAILS
| A588 Carbon Steel Plate Description |
| A588 carbon steel plate has been specially treated to show good corrosion resistance. It can resist corrosion from the atmosphere, sea water, salt spray and other environments, thus extending its service life. For another, A588 carbon steel plate is made of high-strength steel and has high yield strength and tensile strength, which can meet the requirements of various structural parts. The plate also has good welding performance, is easy to weld and process, and therefore improves the efficiency of engineering installation. A588 carbon steel plates are suitable for various structural parts that require corrosion resistance and high strength, such as bridges, buildings, ships, vehicles, etc. |
| Product Parameters |
| Product Name | A588 Carbon 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 |
| A588 | C | Mn | P | S | Ni | Si | Cr |
| GradeA | ≤ 0.19 | 0.80~1.25 | ≤ 0.04 | ≤ 0.05 | ≤ 0.40 | 0.30-0.65 | 0.40-0.65 |
| GradeB | ≤ 0.20 | 0.75~1.35 | ≤ 0.04 | ≤ 0.05 | ≤ 0.50 | 0.15-0.50 | 0.40-0.70 |
| GradeC | ≤ 0.15 | 0.80~1.35 | ≤ 0.04 | ≤ 0.05 | 0.25-0.50 | 0.15-0.40 | 0.30-0.50 |
| GradeK | ≤ 0.17 | 0.50~1.20 | ≤ 0.04 | ≤ 0.05 | ≤ 0.40 | 0.25-0.50 | 0.40-0.70 |
| Mechanical Properties |
| A588 | Tensile Strength | Yield Strength | Elongation 200mm% | Elongation 50in% |
| Thickness≤100mm | 485 | 345 | 18 | 21 |
| Thickness>100-125mm | 460 | 315 | – | 21 |
| Thickness>125-200mm | 435 | 290 | – | 21 |
| Physical Performance |
| Physical Performance | Metric | Imperial |
| Density | 7.75g/cc | 0.280 lb/in³ |
| Scope of Application |
| ASTM A588 steel is known for its weather resistance. When exposed to external conditions, its corrosion resistance becomes stronger even if it is not painted. ASTM A588 steel has four times the corrosion resistance of carbon steel. The application of ASTM A588 steel is very wide. In addition to its typical application in welded bridges and buildings, this specification is also widely used in railway passenger cars; including transmission towers and telephone towers, trucks, bridges and gusset plates, and housing shells. ASTM A588 steel also maintains a good strength-to-weight ratio, meeting the high strength requirements of carbon steel with less weight. |
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