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High-Temperature Alumina Refractory Powder for Industrial Kilns
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This product is a high-purity aluminum oxide (Al2O3) refractory powder, specially designed for harsh environments such as high-temperature furnaces, furnace linings, and refractory castables. With an ultra-high melting point (2050°C), excellent thermal shock stability, and a low coefficient of thermal expansion, it significantly extends the service life of furnaces, reduces heat loss, and is suitable for high-temperature production equipment in industries such as steel, cement, glass, and ceramics.
Product Description This product is a high-purity aluminum oxide (Al 2O 3) refractory powder, specially designed for harsh environments such as high-temperature furnaces, furnace linings, and refractory castables. With an ultra-high melting point (2050°C), excellent thermal shock stability, and a low coefficient of thermal expansion, it significantly extends the service life of furnaces, reduces heat loss, and is suitable for high-temperature production equipment in industries such as steel, cement, glass, and ceramics.
Core Advantages Ultra-high temperature resistance - Stable long-term performance at 1800°C, with a peak tolerance of 2050°C Strong thermal shock stability - Resists rapid temperature changes and reduces the risk of furnace cracking High purity and low impurities (Al 2O 3≥99%) - Minimizes high-temperature corrosion Customizable particle size (2-50μm) - Adapts to different construction processes Energy-saving and environmentally friendly - Reduces furnace heat loss and fuel consumption
Construction Recommendations • For castables: Recommended addition rate of 80-90%, used in combination with high-alumina cement • For gunning materials: Particle size recommended at 10-30μm, requires a binder • For ramming mixes: Coarse particles (30-50μm) enhance corrosion resistance
Why Choose Us? Strict quality control - Each batch is tested for chemical composition and particle size distribution Technical support - Provides optimization suggestions for refractory material formulations Stable supply - Monthly production capacity of 200 tons, supporting emergency orders Standards compliance - Certified to ISO 9001, with test reports provided with each shipment
Quality Index
Serial Number
Project
Unit
Index
YJ-A
YJ-B
1
AL₂O₃
%≥
99.5
99.5
2
SiO₂
%≤
0.10
0.10
3
Fe₂O₃
%≤
0.03
0.04
4
Na₂O
%≤
0.10
0.20
5
Caustic soda
%≤
1.0
1.0
6
α-AL₂O₃
%≥
96.0
95.0
7
True proportion
%≥g/cm3
3.96
3.94
8
Particle size%
≤2um
≥90
≥85
D50um
≥0.60
≥0.80
Product Description This product is a high-purity aluminum oxide (Al 2O 3) refractory powder, specially designed for harsh environments such as high-temperature furnaces, furnace linings, and refractory castables. With an ultra-high melting point (2050°C), excellent thermal shock stability, and a low coefficient of thermal expansion, it significantly extends the service life of furnaces, reduces heat loss, and is suitable for high-temperature production equipment in industries such as steel, cement, glass, and ceramics.
Core Advantages Ultra-high temperature resistance - Stable long-term performance at 1800°C, with a peak tolerance of 2050°C Strong thermal shock stability - Resists rapid temperature changes and reduces the risk of furnace cracking High purity and low impurities (Al 2O 3≥99%) - Minimizes high-temperature corrosion Customizable particle size (2-50μm) - Adapts to different construction processes Energy-saving and environmentally friendly - Reduces furnace heat loss and fuel consumption
Construction Recommendations • For castables: Recommended addition rate of 80-90%, used in combination with high-alumina cement • For gunning materials: Particle size recommended at 10-30μm, requires a binder • For ramming mixes: Coarse particles (30-50μm) enhance corrosion resistance
Why Choose Us? Strict quality control - Each batch is tested for chemical composition and particle size distribution Technical support - Provides optimization suggestions for refractory material formulations Stable supply - Monthly production capacity of 200 tons, supporting emergency orders Standards compliance - Certified to ISO 9001, with test reports provided with each shipment
