Item/Grade
|
|
M-98
|
M-97A
|
M-97B
|
M-95A
|
M-95B
|
M-91
|
M-89
|
||||||
ω (MgO)/%
|
μ0 ≥
|
97.5
|
97.0
|
96.5
|
95.0
|
94.5
|
91.0
|
89.0
|
||||||
|
σ
|
1.0
|
|
|
|
|
1.5
|
|
||||||
ω (SiO
2
)/%
|
μ0 ≤
|
1.00
|
1.20
|
1.50
|
2.00
|
2.50
|
/
|
/
|
||||||
|
σ
|
0.3
|
|
|
|
|
|
|
||||||
ω (CaO)/%
|
μ0 ≤
|
/
|
/
|
/
|
2.00
|
2.00
|
3.00
|
3.00
|
||||||
|
σ
|
0.3
|
|
|
|
|
|
|
||||||
Apparent Porosity/%
|
μ0 ≤
|
16
|
16
|
18
|
16
|
18
|
18
|
20
|
||||||
|
σ
|
1.5
|
|
|
|
|
|
|
||||||
Bulk Density (g/cm³)
|
μ0 ≥
|
3.00
|
3.00
|
3.00
|
2.95
|
2.95
|
2.90
|
2.85
|
||||||
|
σ
|
0.3
|
|
|
|
|
|
|
||||||
Cold Crushing Strength/MPa
|
μ0 ≥
|
60
|
60
|
60
|
60
|
60
|
60
|
50
|
||||||
|
X
min
|
50
|
50
|
50
|
50
|
50
|
50
|
45
|
||||||
|
σ
|
10
|
|
|
|
|
|
|
||||||
0.2MPa Refractoriness Underload/℃
|
μ0 ≥
|
1700
|
1700
|
1700
|
1650
|
1650
|
1560
|
1500
|
||||||
|
σ
|
15
|
|
|
|
|
|
|
||||||
Permanent Linear Change/%
|
X
min
~X
max
|
1650℃*2h -0.2-0
|
|
|
1650℃*2h -0.3-0
|
|
1600℃*2h -0.5-0
|
1600℃*2h -0.6-0
|