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$High-Temperature Alumina Refractory Powder for Industrial Kilns$

$High-Temperature Alumina Refractory Powder for Industrial Kilns$ $High-Temperature Alumina Refractory Powder for Industrial Kilns$

High-Temperature Alumina Refractory Powder for Industrial Kilns

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.

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Product Description

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

Typical Applications
Steel industry: Blast furnace tap holes, ladle linings
Cement industry: Rotary kiln transition zones, burner refractory layers
Glass industry: Glass furnace pool walls, flow channel protection
Ceramic industry: Roller kilns, shuttle kiln refractory linings
Chemical industry: Pyrolysis furnaces, gasifier high-temperature coatings

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
Serial Number	Project	Unit	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
8	Particle size%	D50um	≥0.60	≥0.80