Steel 1.0503 / C45 / St45
Chemical composition of steel 1.0503
| C | Si | Mn | P | S | Cr | Mo | Ni | Fe |
| 0, 42-0.50 | <0.4 | 0.5-0.8 | <0.045 | <0.045 | <0.4 | <0.1 | <0.4 | Remaining |
Mechanical properties of material 1.0503
| Thickness | Yield strength, MPa | Tensile strength, MPa | Refers to Integral extension, % | Relative taper, % |
| +N | ||||
| <16mm | > 340 | > 620 | > 14 | – |
| 16 – 100 | > 305 | > 580 | > 16 | – |
| >100 mm | > 275 | > 560 | > 16 | – |
| +QT | ||||
| <16 mm | > 490 | 700-850 | > 14 | > 35 |
| 16 – 40 | > 430 | 650-800 | > 16 | > 40 |
| >40 mm | > 370 | 630-780 | > 17 | > 45 |
- Delivery forms of steel squares according to EN 10059
Steel squares
Steel grades
Dimensions supplied (mm)
Steel square 1.0503 / st45
6 – 120
