Properties
Mechanical Properties
The values shown for the mechanical properties of HR FB590 are for test pieces taken parallel to the rolling direction unless otherwise stated.
| EN 10338: HDT580F | FB590 HR Typical | |||
|---|---|---|---|---|
| Yield strength Rp0,2 1 (N/mm²) | 440 - 600 | 490 | 530 2 | |
| Tensile strength Rm (N/mm²) | ≥ 580 | 595 | 600 2 | |
| Elongation % | > 15 | 20 | 18 2 | |
1. Lower yield strength or 0.2 % proof stress applies.
2. These mechanical property values are quoted for the transverse rolling direction.
Hole expansion coefficient values can be supplied (although not as part of the production release test) – please contact us for details.
Elongation after fracture A uses test piece length L0 = 80 mm
Chemical composition
Tata Steel supplies the following cast analysis with maximum values in weight percentages unless shown otherwise:
| EN10338: HDT580F | FB590 HR | ||
|---|---|---|---|
| C | Max. | 0.18 | 0.18 |
| Mn | Max. | 2.0 | 2.0 |
| Si | Max. | 0.5 | 0.5 |
| P | Max. | 0.05 | 0.05 |
| S | Max. | 0.010 | 0.010 |
| Altot | 0.015 - 2.0 | 0.015 - 2.0 | |
| Cr+Mo | Max. | 1.0 | 1.0 |
| Nb+Ti | Max. | 0.15 | 0.15 |
| V | Max. | 0.15 | 0.15 |
| B | Max. | 0.01 | 0.01 |