India · IS
Fe490B
IS 8500:1991 — IS 8500
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.2 | |||
| CEV | 0.42 | |||
| Mn | 1.5 | |||
| Nb+Ti+V+B | 0.25 | |||
| P | 0.05 | |||
| S | 0.05 | |||
| Si | 0.45 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| flats and long products, rolled or normalized | ≥25 Charpy V Notch (-20°C)；≥50 Charpy V Notch (20°C) | |||||
| flats and long products, rolled or normalized, < 6 mm | ≥350 | ≥490 | ≥22 | |||
| flats and long products, rolled or normalized, > 40 <= 63 mm | ≥320 | ≥490 | ≥22 | |||
| flats and long products, rolled or normalized, > 6 <= 40 mm | ≥330 | ≥490 | ≥22 |
High/low temperature
| Condition | Temperature ℃ | min | Remarks |
|---|---|---|---|
| flat products and long products or normalized | -20 | 25 | Charpy V Notch |