Hydro shaft



Weight 220t
- kg (- lbs)
Steel grade
High metal quality is presented by the following figures:
* the content of detrimental impurities in steel not alloyed with the given agents:
- Sulphur (S) no more than 0.005%.
- Phosphoros (P) no more than 0.010 %.

* gas content after vacuum degassing:
- Oxygen (O) 30 ppm.
- Hydrogen (H) no more than 1.5 ppm
- Nitrogen (N) no more than 70 ppm
Production process
1. Melting in electric arc furnace
2. Refining
3. Bottom pouring or Vacuum pouring
4. Forgings