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 pipe |
| Fabrication Standard | API 5L/5CT ASTM A53 A252 A500 EN10217 EN10219 |
| Material Grade | A192 St35.8 S275JR-A 1020 1045 4140 4340 S235 S235JR S275JR s355 S355JR A106 Gr.B |
| Out Diameter | 10mm-500mm or customized |
| Wall Thickness | 0.5mm - 200mm or customized |
| Length | 3-12m or customized |
| Surface | black paint,varnish,oil,galvanized,anti-corrosion coated |
| Coating | FBE, 3LPP, 3LPE, Epoxy, Coal Tar Expoxy |
| Standards | ASTM: A53,A283,A106-A,A179,A214C,A192,A226,A315,A106,A178
GB: 16Mn20Cr,40Cr,35CrMo,45CrMo,10CrMo910,15MnV,09Mn2v,06A1NbCuN, 16Mo,12CrMo,15CrMoG,12Cr1MoVG,Cr5Mo,1Gr13,2Cr13,1Cr17 JIS: G3452 G3457 G3456 G3461 G3454 G3455 DIN: DIN1626 DIN17175 DIN1629/4 DIN1629/3 |
| Package | by piece or in bundles |
| Delivery time | In Stock: 3-7 Days, Not in Stock: 10-20 Days |
| Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Minimum Order Quantity | 5 Tons |
| EZS Advantage | 1.regular sizes in stock over 2000 tons for immediate delivery
2.small quantity with factory rate
3.quality certificate as per EN10204 3.1b issued by manufacturer
4.expert technical and export/import document consultant and support
5. on-time response by email, skype, website and online messages |
| 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 |