- Cruas àrd le cruas Moh ìre 9
- Àrd-sheasmhachd sgriobaidh agus ceimigean
- Stàladh furasta le uisge glaodh roisinn epocsa
- Càradh furasta ma thuiteas cuideigin le leac ceàrnagach dheth
- Diofar chumaidhean is meudan lìnigeadh ceirmeag alumina ri fhaighinn
| Toradh | Fad (mm) | Leud (mm) | Tiughas a’ gabhail a-steach Dimple (mm) |
| Leacan ceirmeach le 5 dimles | 20±0.3 | 20±0.3 | 5/6/7/8/9/10 |
| Leacan ceirmeag le 13 claisean | 20±0.3 | 20±0.3 | 5/6/7/8/9/10 |
| Leacan ceirmeag le 18 claisean | 20±0.3 | 30±0.5 | 5/6/7/8/9/10 |
| Leac ceirmeach le 13 claisean | 25±0.4 | 25±0.4 | 5/6/7/8/9/10 |
| Leac Heicseagach | 12 | 3/6/10/11/12/20/24/25 | |
| Leac Heicseagach | 19 | 5~25 | |
| Leac Heicseagach | 6 | 3~6 | |
| Leac Ceàrnagach | 20 | 20 | 2~10 |
| Leac Ceàrnagach | 17.5 | 17.5 | 2~10 |
1) Co-dhèanamh Ceimigeach:
| Al2O3 | SiO2 | CaO | MgO | Na2O |
| 92~93% | 3~6% | 1~1.6% | 0.2~0.8% | 0.1% |
2) Feartan corporra:
| Gravity sònraichte (g/cc) | >3.60 |
| Poireasachd follaiseach (%) | 0 |
| Neart Lùbadh (20ºC, Mpa) | 280 |
| Neart teannachaidh (20ºC, Mpa) | 850 |
| Cruas Rockwell (HRA) | 80 |
| Cruas Vickers (hv) | 1050 |
| Cruas Moh (sgèile) | ≥9 |
| Leudachadh Teirmeach (20-800ºC, x10-6/ºC) | 8 |
| Meud criostail (μm) | 1.3~3.0 |