Specifications

high refractoriness under load
high thermal conductive
good thermal shock resistance
good acid erosion resistance

semi-silica bricks for coke oven 

 

Semi-silica brick content less than 30% Al₂O₃ and more than 65%SiO₂. it is made of quartz sand and kaolin in special grain fineness,after shaping,drying.As it contains more quartz, the property is between clay brick and silica brick, residual expansion,erosion-resistance,acid slag resistance and RUL all higher than clay bricks.It is used as the coke oven bottom, liner and flue etc.

 

physical and chemical index:

items	TY-65
SiO2%	≥65
Al2O3%	<30
K2O+Na2O%	≤1.0
AP%	≤24
CCS(MPa)	≥25
0.2MPa RUL (°C)	≥1350
PLC(1350°C*2h) %	-0.2~+0.2

 

Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products