Steel fiber refractory castble is a kind of hydraulic refractory castable with high-alumina clinker or brown corundum as aggregte and powder, mixed with binding agent and moderate amount of thermal-resistant and stainless steel fiber as well as admixture.
Steel fiber refractory castable is provided with the advantages of high strength, high temperature resistance, impact resistance, thermal shock resistance, good abrasion resistance and so on. web:
Steel fiber refractory castable products are classified into common stainless steel fiber refractory castable and nickel-plated stainless steel fiber reinforce refractory castable technology is provided with better high temperature resistance and rub resistance.
The steel fiber refractory castable is mainly used in metallurgy, building material and the high-temperature damageable part of circulating fluidized bed boilers.
Main physicochemical index for Steel fibre reinforced castable
|
Item |
GXJ55 |
GXJ60 |
GXJ65 |
6\GXJ70 |
|
|
Al2O3(%) :≥ |
55 |
60 |
65 |
70 |
|
|
Volume density (g/cm3) :≥ |
110℃×16h |
2.3 |
2.4 |
2.5 |
2.5 |
|
Compression strength (MPa):≥ |
110℃×16h |
45 |
50 |
50 |
50 |
|
1350℃×3h |
65 |
70 |
70 |
70(1500℃×3h) |
|
|
Rupture strength (MPa) :≥ |
110℃×16h |
7 |
7 |
7 |
7 |
|
1350℃×3h |
8 |
8 |
8 |
8(1500℃×3h) |
|
|
Linear change rate (%) |
1300℃×3h |
0~-0.5 |
0~-0.5 |
0~-0.5 |
+0.5~-0.5(1500℃×3h) |
|
Long-term use temperature (℃) |
1350 |
1350 |
1400 |
||
|
Used part |
All parts of furnace |
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