Carbon Steel Plate
Carbon steel, is an iron-carbon alloy with a carbon content of ωc less than 2%. In addition to carbon, carbon steel generally contains a small amount of silicon, manganese, sulfur, phosphorus.
According to the use of carbon steel can be divided into carbon structural steel, carbon tool steel and free cutting structural steel three categories.
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Carbon structural steel can be divided into two types: building strutural steel and machine manufacturing structural steel. Carbon steel can be divided into low carbon steel ( ωc≤0 . 25% ) according to carbon content, Medium carbon steel (ωc=0.25%-0.6%) and high carbon steel (ωc>0.6%) according to the amount of phosphorus and sulfur can be divided into ordinary carbon steel (containing phosphorus, sulfur is higher), high-quality carbon steel (containing phosphorus, sulfur is lower) and senior high-quality steel (containing phosphorus, sulfur is lower) , the higher the carbon content of general carbon steel, the higher the hardness, the higher the strength, but the plasticity is reduced.carbon steel is mainly used in construction, automobiles, machinery manufacturing, aerospace and other fields.
Classification of carbon stee：
| steel | carbon steel | alloy steel | ||
| P | S | P | S | |
| common straight carbon steel | ≤0.045 | ≤0.045 | ≤0.045 | ≤0.045 |
| High quality carbon steel plate | ≤0.035 | ≤0.035 | ≤0.035 | ≤0.035 |
| high-grade fine carbon steel | ≤0.030 | ≤0.030 | ≤0.025 | ≤0.025 |
| Extra high quality carbon steel | ≤0.025 | ≤0.020 | ≤0.025 | ≤0.015 |
Grade：
| GB700 | Q195 | Q215A | Q215B | Q235A | Q235B | Q235C | Q235D | Q255A | Q255B | Q275 |
| ASTM | A283M GR B | A283M GR C | A573M GR 58 | A283M GR D | A573M GR 58 | A515 GR.60 | A515 GR.65 | A516-60 | A516-55 | A516-70 |
| D INEN | S185 | S235GR | S235JRG1 | S235JRG2 | S235J0 | S235J2G3 | S235J2G4 | Fe360 C | Fe360 B | Fe 360 D1 |
| J IS | SS330 | SS400 | SS400A | SS490 | SM400A | SM400B | SM490 | SPHC | SPHD | SPCC |
High Quality Carbon Steel Plate：
| GB | 08F | 8 | 10F | 10 | 15 | 20 | 25 | 30 | 35 |
| 40 | 45 | 50 | 55 | 60 | 15Mn | 20Mn | 30Mn | 40Mn | |
| ASTM | 1006 | 1008 | 1010 | 1015 | 1020 | 1025 | 1030 | 1035 | 1040 |
| 1045 | 1050 | 1055 | 1060 | 1016 | 1021 | 1330 | 1335 | 1340 | |
| BS | 040A04 | 045M10 | 040A10 | 045M10 | 095M15 | 050A20 | 060A30 | 060A35 | 080A40 |
| J IS | S09CK | S9CK | S10C | S15C | S20C | S25C | S30C | S35C | S40C |
| NF | XC10 | XC18 | XC32 | XC38TS | XC38H1 | XC45 | XC48TS | XC55 | 40M5 |
| D IN | C10 | CK10 | C15 | CK15 | C22 | CK22 | CK25 | C35 | CK35 |
