- BrandHCR
- Country of manufactureChina
- Material typeSiliceous
- RefractorinessRefractory (over 1530 ° C)
Silica brick belong to acid refractory material, has good resistance to the ability of acid slag erosion, It’s mainly used for coke oven of coking chamber and combustion chamber partition, steel - making furnace regenerator and sediment chamber, soaking furnace, glass furnace refractory and so on.
|
Name
Item |
Silica brick for coke oven G - D |
Silica brick for hot blast stoves RG - 94 |
Silica brick for glass furnace BG - 95 |
Normal Silica brick |
|||
|
GZ - 95 |
GZ - 94 |
GZ - 93 |
|||||
|
Chemical Competent % |
SiO2 |
≥93 |
≥94 |
≥95 |
≥95 |
≥94 |
≥93 |
|
Al2O3 |
≤1.5 |
≤1.0 |
≤1.0 |
|
|
|
|
|
Fe2O3 |
≤1.5 |
≤1.5 |
≤1.0 |
|
|
|
|
|
CaO |
≤3 |
|
≤2.5 |
|
|
|
|
|
True density，g/cm3 |
≤2.34 |
≤2.34 |
≤2.34 |
≤2.37 |
≤2.38 |
≤2.40 |
|
|
Apparent porosity, % |
≤22 |
≤22 |
≤22 |
≤22 |
≤23 |
≤25 |
|
|
Cold crushing strength, Mpa |
≥35 |
≥35 |
≥35 |
≥30 |
≥25 |
≥20 |
|
|
Refractoriness ℃ |
≥1690 |
≥1710 |
≥1710 |
≥1710 |
≥1710 |
≥1690 |
|
|
Initial soften point under load（℃）2MPa×0.6% |
1650 |
≥1650 |
1650 |
≥1650 |
≥1640 |
≥1620 |
|
|
Creep rate（% ） 2MPa·1550℃×2h |
|
≤1 |
|
|
|
|
|
|
Permanent linear change on reheating，% 1450℃×2h |
|
+ 0.2 |
|
|
|
|
|