Carbon steels contain carbon as the primary alloying element. Small quantities of molybdenum, chromium, nickel, aluminium, and copper are also present in these steels. They contain 0.4% silicon and 1.2% manganese. They are designated by AISI four-digit numbers.
| Element | Content(%) |
|---|---|
| Iron, Fe | 97.73 - 98.2 |
| Manganese, Mn | 1.35 - 1.65 |
| Carbon, C | 0.370 - 0.45 |
| Sulfur, S | 0.080 - 0.13 |
| Phosphorous, P | 0.040 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 675 MPa | 97900 psi |
| Yield strength | 360 MPa | 52200 psi |
| Izod impact | 11 J | 8.11 ft-lb |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 22% | 22% |
| Reduction of area | 38% | 38% |
| Hardness, Brinell | 192 | 192 |
| Hardness, Knoop (converted from Brinell hardness) | 214 | 214 |
| Hardness, Rockwell B (converted from Brinell hardness) | 91 | 91 |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 11 | 11 |
| Hardness, Vickers (converted from Brinell hardness) | 201 | 201 |
| Production Route | Hot Rolled, Cold Rolled |
|---|---|
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |
ASTM A108 (1141)
ASTM A29 (1141)
ASTM A311 (1141)
ASTM A510 (1141)
ASTM A576 (1141)
SAE J1397 (1141)
SAE J403 (1141)
SAE J412 (1141)
ASTM A107
FED QQ-S-637
SAE J414
1) Structures in Buildings, bridges, railway stations.
2) Fabrication of pipeline components & Industrial equipment.
3) Construction of automotive bodies, warehouses, shipping containers.
4) Commercial appliances, etc.