Self lubricating Iron Sintered Parts is a more modified variety offered by us. It does not require external source of lubrication and is preferred over the other varieties, due to the convenience that it offers.
| Elements | Class A% | B3% | B2% | B1% |
| Copper (Cu) | 1.00 Max | 9-11 | 4-6 | 1.5-3.5 |
| Carbon (C) | 0.25 Max. | 0.25 | 0.25 | 0.25 |
| Impurities | 2.0 | 2.0 | 2.0 | 2.0 |
| Copper (Cu) | BAL. | BAL. | BAL. | BAL. |