Silicon Carbide Bricks
Silicon carbide bricks feature good wear resistance and corrosion resistance, high high-temperature strength, good thermal shock resistance, high thermal conductivity, and a small thermal expansion coefficient. They belong to non-oxide high-performance refractory materials and are mainly used in waste incinerators, non-ferrous metallurgical copper shaft furnaces, heat exchangers, etc.
Send Message WhatsApp
Physical and Chemical Indicators
|
Item |
Bonding Method |
|||||
|
SiO₂ |
Clay |
Si₃N₄ |
Sialon |
Self-Bonded |
Recrystallized |
|
|
SiC (%) |
90 |
≥ 85 |
≥ 75 |
≥ 70 |
94 |
≥ 99 |
|
SiO₂ (%) |
10 |
6~10 |
/ |
/ |
3.0 |
/ |
|
Si₃N₄ (%) |
/ |
/ |
≥ 20 |
/ |
/ |
/ |
|
Sialon (%) |
/ |
/ |
/ |
≥ 20 |
/ |
/ |
|
Bulk Density (g/cm³) |
2.6~2.7 |
2.5~2.6 |
2.6~2.66 |
2.7 |
2.63 |
2.6~2.8 |
|
Apparent Porosity (%) |
12~15 |
14~20 |
19 |
15 |
16 |
7~20 |
|
Cold Crushing Strength (MPa) |
100~145 |
100~160 |
220 |
228 |
140 |
/ |
|
Cold Modulus of Rupture (MPa) |
25 |
20~25 |
45 |
50 |
30~50 |
70~100 |
|
Linear Expansion Coefficient (× 10⁻⁶/℃) |
4.7 |
4.6 |
4.6 |
5.1 |
5.5 |
4.5~5 |
| Thermal Conductivity (W/(m·K)) at 1000 ℃ | 11~14.5 | 11~14 | 15 | 17.4 | 12.8 | 28 |
