At NALWA Steel And Power Limited, Coal-based sponge iron is manufactured using 6 indigenously developed rotary kiln.
Specifications of Sponge
| Properties | Chemistry | ||
| Fe (M): | 78 - 84 % | C: | 0.1 to 0.3 % |
| Fe (T): | 89 - 93 % | S: | 0.04 % Max |
| Metallization | 86 - 90 % | P: | 0.06 % Max |
| Mix | Supply condition | ||
| Fine (0-6mm) | 50 % | Duly packed in HDPE polythene bags of 50Kg loose as required by the customer. | |
| Lump (6-20mm) | 50 % | ||