Silicon Nitride-Bonded Silicon Carbide Bricks for Blast Furnaces
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Keywords:Silicon Nitride-Bonded Silicon Carbide Bricks for Blast Furnaces
Product Details
Both domestic and international applications in blast furnaces have demonstrated that silicon nitride-bonded silicon carbide bricks not only possess technical superiority but also economic advantages. As a result, they are widely used in critical areas such as the furnace shaft, bosh, lower shaft, and cooling staves. These bricks are currently one of the most cost-effective refractory materials for blast furnaces.
I. Raw Materials : Sources and Composition
Material Name | Key Specifications | Production Regions |
Silicon Carbide | SiC≥98% | Gansu, Ningxia |
Metallic Silicon | Si≥98% | Henan, Zhejiang |
Ⅱ. Product Physical-Chemical Indicators
Parameter | Indicators | |
Apparent Porosity % | ≤16 | |
Bulk Density g/cm³ | ≥2.65 | |
Cold Crushing Strength MPa | ≥160 | |
Cold Modulus of Rupture MPa | ≥45 | |
High-Temperature Modulus of Rupture (1400℃) MPa | ≥50 | |
Thermal Conductivity (1100℃) W/m.k | ≥17 | |
Refractoriness ℃ | 1800 | |
0.2MPa Load Softening Temperature ℃ | ≥1600 | |
Chemical Composition % | SiC | ≥71 |
Si3N4 | ≥22 | |
Fe2O3 | ≤0.7 | |
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Silicon Nitride-Bonded Silicon Carbide Bricks for Blast Furnaces
Tailored for high-temperature, high-pressure, and highly corrosive environments in blast furnaces, with exceptional performance in critical zones like the bosh, belly, and lower shaft.
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Shutang Village, Qianjing Town, Yuzhou City, Henan Province, China
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