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Special refractory product |
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Special refractory product is mainly used in molten steel casting, torpedo car, refining furnace, blast furnace and test equipment. |
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Performance index |
Item |
Index |
ASC-12 |
ASC-14 |
Al2O3£¬ % ¡Ý |
58 |
65 |
SiC£¬ % ¡Ý |
12 |
14 |
Uncombined C£¬% ¡Ý |
10 |
4.5 |
Apparent porosity % ¡Ü |
12 |
12 |
Bulk density g/cm3 ¡Ý |
2.75 |
2.88 |
Cold crushing strength MPa ¡Ý |
40 |
50 |
Hot modulus of rupture£¨1400¡æX0.5h£©,MPa |
The experimental data is provided. But it can¡¯t be used as supply condition. |
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Guiding plate and nozzle seating brick |
Performance index |
Item |
Index |
CTH-1 |
LTZ-1 |
Al2O3£¬ %
No less than |
76 |
60 |
SiC£¬ |
12-15 |
12-15 |
Fe2O3£¬%
No more than |
1.0 |
2.0 |
4kg./sq.cm. Refractoriness under load ¡æ
No less than |
1650 |
1550 |
Apparent porosity %
No more than |
18 |
22 |
Thermal shock stability£¬1100¡æ
Water cooling ,Cycle
No less than |
8 |
8 |
Cold crushing strength£¬kg./sq.cm. No less than |
700 |
500 |
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Silicon nitride bonded carborundum brick |
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Item |
Index |
DTZ-1 |
DTZ-2 |
SiC£¬ %
No less than |
72 |
70 |
Si3N4£¬ %
No less than |
21 |
20 |
Fe2O3£¬%
No more than |
1.5 |
2.0 |
Apparent porosity %
No more than |
17 |
19 |
Bulk density£¬g/cm3
No less than |
2.62 |
2.58 |
Cold crushing strength MPa
No less than |
150 |
147 |
Hot modulus of rupture£¨1400¡æ£©£¬MPa
No less than |
43.0 |
39.2 |
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Zircon sizing nozzle brick |
Performance index |
Item |
Index |
Integration lining |
Coat |
X
F-75
Z |
X
F-70
Z |
X
-65
Z |
WG-65 |
WL-50 |
ZrO2£¬% No less than |
73 |
68 |
63 |
63 |
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Al2O3£¬% No less than |
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50 |
Apparent porosity % No more than |
20 |
21 |
22 |
23 |
24 |
Bulk density£¬g/cm3 No less than |
3.90 |
3.75 |
3.70 |
3.60 |
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Performance index |
Item |
Index |
High-alumina |
Corundum |
Alumina-carbon |
Magnesia-carbon |
KL
-55 |
KL
-65 |
KL
-70 |
KL
-80 |
KG
-90 |
KLT
-65 |
KLT
-70 |
KLT
-75 |
KLT
-80 |
KLT
-90 |
KMT
-70 |
KMT
-75 |
KMT
-80 |
KMT
-85 |
¦Ø£¨AI2O3£©/%
No less than |
55.0 |
65.0 |
70.0 |
80.0 |
90.0 |
65.0 |
70.0 |
75.0 |
80.0 |
90.0 |
- |
-- |
- |
- |
¦Ø£¨MgO£©/%
No less than |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
70.0 |
75.0 |
80.0 |
85.0 |
¦Ø£¨C£© /%
No less than |
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- |
- |
- |
- |
5.0 |
5.0 |
3.0 |
3.0 |
3.0 |
10.0 |
10.0 |
10.0 |
5.0 |
Apparent porosity / %
No more than |
Without impregnation |
23.0 |
23.0 |
23.0 |
23.0 |
23.0 |
14.0 |
14.0 |
14.0 |
14.0 |
14.0 |
8.0 |
8.0 |
8.0 |
8.0 |
impregnation |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
4.0 |
4.0 |
4.0 |
4.0 |
distillation |
16.0 |
16.0 |
16.0 |
16.0 |
16.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
6.0 |
6.0 |
6.0 |
6.0 |
Bulk density /
g/cm3
No less than |
Without impregnation |
2.60 |
2.65 |
2.70 |
2.75 |
3.00 |
2.60 |
2.65 |
2.70 |
2.90 |
3.00 |
2.75 |
2.80 |
2.85 |
2.85 |
impregnation |
2.65 |
2.70 |
2.75 |
2.80 |
3.05 |
2.65 |
2.70 |
2.75 |
2.95 |
3.05 |
2.80 |
2.85 |
2.90 |
2.90 |
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Performance index |
Item |
Index |
High-alumina |
corundum |
Alumina-carbon |
Alumina-magnesia-carbon |
Magnesia-carbon |
ZL
-55 |
ZL
-65 |
ZL
-80 |
ZG
-90 |
ZLT
-70 |
ZLT
-80 |
ZLT
-90 |
ZLMT
-55 |
ZLMT
-65 |
ZMT
-70 |
ZMT
-75 |
ZMT
-80 |
¦Ø£¨AI2O3£©/%
No less than |
55.0 |
65.0 |
80.0 |
90.0 |
70.0 |
80.0 |
90.0 |
55.0 |
65.0 |
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¦Ø£¨MgO£©/%
No less than |
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15.0 |
15.0 |
70.0 |
75.0 |
80.0 |
¦Ø£¨C£© /%
No less than |
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5.0 |
3.0 |
3.0 |
5.0 |
5.0 |
10.0 |
10.0 |
10.0 |
Cold crushing strength /MPa
No less than |
Without impregnation |
25 |
25 |
30 |
40 |
35 |
35 |
40 |
25 |
40 |
25 |
25 |
25 |
impregnation |
40 |
40 |
60 |
60 |
50 |
50 |
60 |
40 |
60 |
40 |
40 |
40 |
distillation |
30 |
30 |
50 |
50 |
40 |
40 |
50 |
30 |
50 |
30 |
30 |
30 |
Apparent porosity / %
No more than |
Without impregnation |
25.0 |
25.0 |
22.0 |
24.0 |
23.0 |
23.0 |
23.0 |
23.0 |
16.0 |
8.0 |
8.0 |
8.0 |
impregnation |
4.0 |
4.0 |
4.0 |
5.0 |
5.0 |
5.0 |
5.0 |
8.0 |
8.0 |
5.0 |
5.0 |
5.0 |
distillation |
16.0 |
16.0 |
16.0 |
16.0 |
16.0 |
16.0 |
16.0 |
16.0 |
12.0 |
6.0 |
6.0 |
6.0 |
Bulk density /
g/cm3
No less than |
Without impregnation |
2.60 |
2.65 |
2.70 |
2.95 |
2.80 |
2.85 |
2.95 |
2.60 |
2.85 |
2.75 |
2.80 |
2.85 |
impregnation |
2.65 |
2.70 |
2.75 |
3.00 |
2.85 |
2.90 |
3.00 |
2.65 |
2.90 |
2.80 |
2.85 |
2.90 |
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Permeability brick and nozzle seating brick for refining ladle |
Performance index |
Item |
Index |
T-80 |
T-85 |
Z-80 |
ZB-80 |
Z-85 |
ZB-85 |
¦Ø£¨AI2O3£©/%
No less than |
80 |
85 |
80 |
80 |
85 |
85 |
¦Ø£¨AI2O3 +Cr2O3+MgO£©/%
No less than |
92 |
92 |
92 |
92 |
92 |
92 |
Apparent porosity % No more than |
20 |
20 |
20 |
19 |
20 |
19 |
Cold crushing strength /MPa No less than |
- |
- |
85 |
40 |
85 |
45 |
0.20MPa Refractoriness under load ¡æ
No less than |
1680 |
Air permeabilitya(pressure difference 0.1MPa¡ª1.0MPa)/£¨m3/h£© |
Provide data |
- |
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Performance index |
Item |
Index |
HBL-55 |
HBLT-65 |
HBLT-70 |
HBLT-75 |
HBLTG-65 |
HBLTG-70 |
HBLTG-75 |
AI2O3/% ¡Ý |
55 |
65 |
70 |
75 |
65 |
70 |
75 |
C£¬% ¡Ý |
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7£¨6£© |
7£¨6£© |
7 |
7 |
7 |
7 |
ZrO3 /% ¡Ý |
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5 |
6 |
6 |
Cold crushing strength /MPa ¡Ý |
After impregnation |
80 |
70 |
75 |
80 |
- |
- |
- |
After distillation |
70 |
60 |
65 |
70 |
90 |
110 |
115 |
Without impregnation |
- |
50 |
50 |
- |
- |
- |
- |
Apparent porosity / %
No more than |
After impregnation |
8 |
8 |
8 |
8 |
- |
- |
- |
After distillation |
14 |
13 |
13 |
13 |
12 |
11 |
10 |
Without impregnation |
- |
14 |
14 |
- |
- |
- |
- |
Bulk density /g/cm3 ¡Ý |
- |
- |
- |
- |
2.85 |
3.00 |
3.05 |
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Fused silica refractory product |
Performance index |
Item |
Index |
CRS-99 |
QRS-99 |
SiO23£¬ %
No less than |
99 |
99 |
Apparent porosity %£¬
No more than |
19 |
18 |
Bulk density£¬%
No less than |
1.82 |
1.84 |
Cold crushing strength£¬MPa
No less than |
40 |
40 |
Thermal expansion coefficient£¨1000¡æ£©£¬% |
provide experimental data |
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