Properties
Mechanical Properties
Steel supplied will comply with the mechanical property limits below.
All values are measured transverse to the rolling direction.
| Tata Steel | Grade | Ympress E690TM |
|---|---|---|
| Min. Yield strength ReH (N/mm²) | 690 | |
| Tensile strength Rm (N/mm²) | 750 - 950 | |
| Elongation (%) | t < 3 | 12 |
| 3 ≤ t < 5 | 14 | |
| t ≥ 5 | 14 | |
| Min. bend test diameter | t < 5 | 1.0 t |
| t ≥ 5 | 1.5 t |
Upper yield strength or 0.2% proof stress applies.
t – material thickness in mm.
Elongation after fracture uses test piece length L0 = 80 mm for t < 3 mm. L0 = 5.65√S0 for t ≥ 3 mm.
Impact strength
Impact tests can be performed for thicknesses ≥ 6.0 mm. Please contact us for details.
Chemical composition
Steel supplied will comply with the chemical limits below.
| Tata Steel | Grade | Ympress E690TM |
|---|---|---|
| C | Max. | 0.08 |
| Mn | Max. | 2.00 |
| P | Max. | 0.020 |
| S | Max. | 0.003 |
| Si | Max. | 0.15 |
| Altot | Min. | 0.015 |
| Nb | Max. 1 | 0.09 |
| V | Max. 1 | 0.01 |
| Ti | Max. 1 | 0.15 |
| Mo | Max. | 0.06 |
| Cu | Max. | - |