Properties
Mechanical properties
5 ≤ thickness ≤ 12 mm | Valast 400 | Valast 400 | |
|---|---|---|---|
| (Typical value) | (Guaranteed) | ||
| Hardness 1 | HBW | 400 | 370 - 430 |
| Yield strength 2 | Rp0.2 (N/mm2) | 1100 | |
| Tensile strength 2 | Rm (N/mm2) | 1300 | |
| Elongation 2 | L0 = 5.65 √S0 (%) | 10 | |
| Bending radius 3 | 3.5t | ||
1. Brinell hardness (HBW) according to EN ISO 6506-1, on a milled surface 0.3 – 1 mm below surface. At least one test specimen per heat and 40 tons
2. Mechanical properties are tested in longitudinal direction, based on thicknesses between 4mm and 8mm.
For other thicknesses please contact us.
3. Minimal radius at bending over 90° - bend line parallel to the rolling direction.
Impact strength
Direction | Temperature | Guaranteed | Typical |
|---|---|---|---|
| Longitudinal | -40°C | ≥ 34 J/cm2 | 90 J/cm2 |
| -20°C | 120 J/cm2 | ||
| Transverse | -40°C | 50 J/cm2 | |
| -20°C | ≥ 50 J/cm2 | 75 J/cm2 |
* Guaranteed values correspond to 27J/40J for a full size 10 x 10 mm test piece
Chemical composition
Valast meets the requirements of the cast analysis in the standard as shown in the table below:
Grade | Valast 400 |
|---|---|
| C | ≤ 0.190 |
| Mn | ≤ 1.100 |
| P | ≤ 0.020 |
| S | ≤ 0.005 |
| Si | ≤ 0.100 |
| Alsol | ≥ 0.015 |
| Nb | ≤ 0.060 |
| V | ≤ 0.100 |
| Ti | ≤ 0.060 |
| Mo | ≤ 0.250 |
| B | ≤ 0.005 |