Low Creep Andalusite Refractory Bricks
Size: International standards
Working Temperature °C: 1810
Application: Large and medium blast furnace configuration hot air stove
Description
Low creep andalusite refractory bricks based on mullite and andalusite as the main raw material, molding by high pressure, high temperature firing.
Product Characteristics:
Low impurity content,low porosity, small bulk density
High temperature conditions to maintain the strength
High temperature conditions volume keep it steady
Good thermal shock resistance, small creep rate
Performance parameters:
Item |
LHZ-150 |
LHZ-145 |
LHZ-140 |
Al2O3,%, ≥ |
– |
– |
– |
Fe2O3,%, ≤ |
1 |
1 |
1.3 |
Refractoriness℃ |
1810 |
1810 |
1790 |
Apparent porosity %,AP ≤ |
19(21) |
19(21) |
19(21) |
Density g/cm3,BD ≥ |
2.6 |
2.5 |
2.5 |
Crushing strength MPa, CCS ≥ |
65(55) |
65(55) |
70(60) |
0.2MPaLoad softening temperature ℃ RUL ≥ |
1650 |
1650 |
1630 |
Rebirth line change rate (1500℃×2h),% |
0~+0.5 |
0~+0.5 |
0~+0.5 |
Thermal shock stability ≥ |
30 |
25 |
25 |
Creep rate %, ≤ |
0.8 |
0.8 |
0.8 |
(1500℃×50h) |
(1450℃×50h) |
(1400℃×50h) |
Application Areas:
Low Creep Andalusite Refractory Bricks are suitable for Large and medium blast furnace configuration hot air stove.
