Silicon Carbide Refractory Brick

Our factory supplies high-quality silicon carbide refractory brick. Silicon carbide brick is a high-grade refractory made of SiC as the main raw material. It has a series of excellent properties, such as high strength at room temperature and high temperature, high thermal conductivity, small linear expansion coefficient, good thermal shock resistance, excellent high-temperature abrasion resistance, strong chemical corrosion resistance, ฯลฯ. It has been widely used in the fields of iron and steel, colored metallurgy, chemistry, ไฟฟ้า, ceramics, and aerospace.

Silicon carbide brick types

Silicon carbide bricks can be divided into oxide bonding (clay bonding, mullite bonding, SiO2 bonding), nitride bonding (Si3N4 bonding, Sialon bonding), and self-bonding according to the bonding mode（ β- SiC bonded and recrystallized silicon carbide) and siliconized reaction sintered silicon carbide bricks.

Technique Data of silicon carbide brick

silicon carbide bricks of different shapes

（1）Oxide Bonded Silicon Carbide Brick

Items	Specifications
	Clay Bonded SiC	Mullite Bonded SiC	SiO₂Bonded SiC
SiC %	＞85	＞70	≥90
Bulk Density g/cm³	2.5~2.6	2.55~2.65	2.6~2.7
Apparent Porosity %	≤20	≤16	≤15
CCS MPa	≥100	≥100	≥120
CMOR MPa	≥20	≥25	≥25
Thermal Expansion Coefficient℃^-120~1000℃	4.6×10^-6	4.6×10^-6	4.7×10^-6
Thermal Conductivity W/(m·K) 1000℃	≥11	≥11	≥13

（2）Nitride Bonded Silicon Carbide Brick

Items	Specifications
	Si₃N₄Bonded SiC	Si₃N₄Bonded SiC	Sialon Bonded SiC
SiC %	≥70	≥72	≥71
Si₃N₄%	≥20	≥20	/
N %	/	/	≥5.5
อัล₂โอ₃ %	/	/	≥5
Fe₂โอ₃ %	≤1.0	≤0.7	≤0.7
Bulk Density g/cm³	≥2.60	≥2.65	≥2.65
Apparent Porosity %	≤18	≤16	≤16
CMOR MPa	≥40	≥45	≥45
HMOR MPa 1400℃	≥40	≥45	≥45
CCS MPa	≥150	≥160	≥150
Thermal Conductivity W/(m·K) 1000℃	≥15.5	≥16	/

（3）Self-bonding Silicon Carbide Brick

Items	Specifications
	β-SiC Bonded SiC	Recrystallized SiC
SiC %	≥94	≥99
Bulk Density g/cm³	≥2.63	≥2.65
Apparent Porosity %	≤17	≤15
CMOR MPa	≥30	≥90
HMOR MPa 1400℃	≥30	≥90
CCS MPa	≥140	≥300
Thermal Expansion Coefficient ℃^-120~1000℃	5.5×10^-6	4.8×10^-6
Thermal Conductivity W/(m·K) 1000℃	≥12	≥20

（4）SiSiC Brick

Items	Specifications
SiC %	≥80
Si %	12~18
Bulk Density g/cm³	≥3.0
Apparent Porosity %	≤0.5
CMOR MPa	≥220
HMOR MPa 1400℃	≥240
CCS MPa	≥800
Thermal Expansion Coefficient ℃^-120~1000℃	4.5×10^-6
Thermal Conductivity W/(m·K) 1000℃	≥40

Silicon carbide brick application

high-quality silicon carbide refractory brick manufacturer

Silicon carbide bricks are refractory materials made of SiC as the main raw material. Containing SiC72%~99%. It is divided into clay-bonded, Si3N4 bonded, Sialon bonded, β-SiC bonded, Si2ON2 bonded, and recrystallized silicon carbide bricks. Silicon carbide bricks have high thermal conductivity and good wear resistance, thermal shock resistance, and corrosion resistance. It can be used for aluminum electrolytic cell linings, molten aluminum conduits and kiln furniture for ceramic kilns, lower parts of large and medium-sized blast furnaces, waists and belly, aluminum refining furnace linings, zinc distillation tank linings, ฯลฯ.

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Silicon carbide brick types

Technique Data of silicon carbide brick

（1）Oxide Bonded Silicon Carbide Brick

（2）Nitride Bonded Silicon Carbide Brick

（3）Self-bonding Silicon Carbide Brick

（4）SiSiC Brick

Silicon carbide brick application

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