1018 steel vs 1045 steel
| Property | 1018 Steel | 1045 Steel |
| Carbon (C) Content | 0.15 – 0.20% | 0.43 – 0.50% |
| Manganese (Mn) Content | 0.60 – 0.90% | 0.60 – 0.90% |
| Phosphorus (P) Content | 0.04% max | 0.04% max |
| Sulfur (S) Content | 0.05% max | 0.05% max |
Mechanical Properties | ||
| Yield Strength | Around 370 MPa | Around 450 MPa |
| Tensile Strength | Around 440 MPa | Around 650 MPa |
| Elongation at Break | Around 20% | Around 12% |
| Hardness, Brinell | Approximately 120 | Approximately 180 |
| Machinability Rating | 0.7 | 0.64 |
| Weldability | Excellent | Moderate |