Silica Refractory Checker Brick For Hot Blast Stove

We are offering silica refractory checker brick.
Place of origin: hebei, china (mainland)
shape: brick
material: silica stone
sio2 content (%): >96%
al2o3 content (%): 0.23-0.45
mgo content (%): 0.8-1.2
cao content (%): 0.01
refractoriness (degree): 1770°
cro content (%): 0.1~0.3%
sic content (%): 0.1~1.4%
model number: 96a
brand name: xuankun
color: yellow
size: customizable
type: factory
bulk density: 2.0-2.5gcm3
certificate: iso bv sgs
raw material: sio2
fe2o3: 0.5% max
advantage: thermal shock resistance
cold crushing strength(mpa): 40
introduction of silica brick:
silica brick is made of quartz stone material, the content of sio2 is above 96%,it has good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°c,rul is beyond 1680°c.
Sio2 has different types of crystals in different temperatures, and the transform between the crystals will cause the change of the bulk. So there is a close contact between the changes of sio2 crystals and the produce ,performance and usage of silica bricks. During the heating, there will be changes of the bulk ,and cristobalite changes most, then quartz, phosphorus quartz is the slowest of all and it also has good heat-conductivity.coke oven should use the silica brick with small true density. And the phosphorus quartz is better than others.