Gnéithe:
1.Higher resistant temperate le refractoriness maith
Feidhmíocht 2.Good i refractoriness teocht ard faoi ualach
Friotaíocht 3.Excellent i scríobadh slaig
Dlús mórchóir 4.Higher
porosity dealraitheach 5.Lower
Ábhar eisíontais 6.Lower
Mír | Grád 91 | Grád 92 | Grád 93 | Grád 94 | Grád 97 |
MgO, % ≥ | 91 | 92 | 93 | 94.5 | 97 |
SiO2, % ≤ | 4 | 3.5 | 2.5 | 2 | 2 |
Fe2O3, % ≤ | 1.3 | – | – | 1.2 | 1.2 |
CaO, % ≤ | 2.5 | 2.5 | 2 | 1.8 | 1.8 |
Porosity dealraitheach, % ≤ | 18 | 18 | 18 | 18 | 18 |
Dlús Bulc, g / cm3 ≥ | 2.86 | 2.9 | 2.95 | 2.92 | 2.95 |
Neart Crushing Fuar Mpa, ≥ | 60 | 60 | 50 | 60 | 60 |
Teasfhulangacht 0.2Mpa Faoi Luchtaigh T0.6 ℃ |
≥1570 | ≥1560 | ≥1620 | ≥1650 | ≥1700 |
Friotaíocht Teirmeach Turraing 100 ℃ timthriallta uisce | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 |