| Model | Raschig Ring | ||||||
| Material | SS 304, 304L, 410, 316, 316L, Carbon Steel; etc. | ||||||
| Preferred Sizes | (mm) | 16*16*0.3 | 25*25*0.5 | 38*38*0.8 | 50*50*0.8 | 76*76*1.0 | 89*89*1.0 |
| Bulk density | (kg/m3) | 345 | 357 | 387 | 292 | 237 | 206 |
| Number | (per m3) | 201000 | 51000 | 15000 | 6500 | 1830 | 1160 |
| Surface area | (m2/m3) | 330 | 216 | 136 | 102 | 71 | 62 |
| Free volume | (%) | 95.1 | 94.6 | 94.6 | 95.9 | 96.6 | 97 |