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 [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 | 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
| Product Name | carbon steel plate/sheet |
| Standard | ASTM A285, ASTM A283, SA516, SA517, EN10025-2-2004, ASTM A572, ASTM A529 ASTM A573ASTM A633, JIS G3101-2004, ASTM A678 ASTM A588, ASTM A242,etc |
| Material | A36,SS400,A283 Gr.A,.Gr.B.Gr.C,A285 Gr.A,.Gr.B.Gr.C,Q235,Q195,Q215,Q345,S185,SM400, |
| S235J0,S235JR,S235J2,Q275,Gr50,GR55,GR.65,GR.A, |
| S275JR,S275J0,E295,SS490 |
| SS540,GR.60,GR.70,S355J0,SM570,E335,S235J2W,Q355,SMA490,S355J2W, |
| Q265,P235GH,SB410,SPV235,SGV410,SG255,P265GH,SB450,SG295,P295GH,etc |
| Size | Thickness:0.5-400mm |
| Width:1000mm,1219mm,1220,1250mm,1500mm,1800mm,2000mm,2200mm,2500mm,etc |
| Length:1000mm,1500mm,2000mm,2438mm,3000mm,6000mm,8000mm,10000mm, |
| 12000mm,etc |
| Surface | Black painted,PE coated,Galvanized ,etc |
| Export Country | Poland,India,Dubai,Peru,Saudi Arabia,Indonesia,Singapore,Korea,Viet Nam,Thailand,Brazil, |
| Ukraine,Canada,South Korea,South Africa and so on. |
| Application | Steel plates are widly used as boiler plate, container plate, flange plate and ship plate, andwidly used in building construction. The size of steel plate can be made according toclients requirements. |
| Item | Material | Thickness (mm) | Width (mm) | Length (mm) |
| MS Hot Rolled Steel Plate | Q235 SS400 A36 | 6-25 | 1500 - 2500 | 4000 - 12000 |
| EN10025 HR Steel Plate | S275 / S275JR ,S355/S355 JR | 6-30 | 1500 - 2500 | 4000 - 12000 |
| Boiler Steel Plate | Q245R , Q345RA516 Gr.60 , A516 Gr.70 | 6-40 | 1500-2200 | 4000 - 12000 |
| Bridge Steel Plate | Q235, Q345, Q370, Q420 | 1.5-40 | 1500-2200 | 4000 - 12000 |
| Ship-building Steel Plate | CCSA/B/C/D/E, AH36 | 2-60 | 1500-2200 | 4000 - 12000 |
| Wear Resistant Steel Plate | NM360, NM400, NM450, NM500, NM550 | 6-70 | 1500-2200 | 4000 - 8000 |
| Corten Steel Plate | SPA-H, 09CuPCrNiA, Corten A | 1.5-20 | 1100-2200 | 3000 - 10000 |
| 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 |
| Material | China | FormerSoviet Union | America | England | Japan | French |
| GB | ГOCT | ASTM | BS | JIS | NF |
| High Quality Carbon Structural Steel | 08F | 08KП | 1006 | 040A04 | S09CK |
|
| 8 | 8 | 1008 | 045M10 | S9CK |
|
| 10F |
| 1010 | 040A10 |
| XC10 |
| 10 | 10 | 10,101,012 | 045M10 | S10C | XC10 |
| 15 | 15 | 1015 | 095M15 | S15C | XC12 |
| 20 | 20 | 1020 | 050A20 | S20C | XC18 |
| 25 | 25 | 1025 |
| S25C |
|
| 30 | 30 | 1030 | 060A30 | S30C | XC32 |
| 35 | 35 | 1035 | 060A35 | S35C | XC38TS |
| 40 | 40 | 1040 | 080A40 | S40C | XC38H1 |
| 45 | 45 | 1045 | 080M46 | S45C | XC45 |
| 50 | 50 | 1050 | 060A52 | S50C | XC48TS |
| 55 | 55 | 1055 | 070M55 | S55C | XC55 |
| 60 | 60 | 1060 | 080A62 | S58C | XC55 |
| 15Mn | 15Г | 10,161,115 | 080A17 | SB46 | XC12 |
| 20Mn | 20Г | 10,211,022 | 080A20 |
| XC18 |
| 30Mn | 30Г | 10,301,033 | 080A32 | S30C | XC32 |
| 40Mn | 40Г | 10,361,040 | 080a40 | S40C | 40M5 |
| 45Mn | 45Г | 10,431,045 | 080A47 | S45C |
|
| 50Mn | 50Г | 10,501,052 | 030A52080M50 | S53C | XC48 |