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High Alumina Brick Thermal Resistant Insulation Brick HA60 HA70 HA75 HA80 Custom Size Options for High Temperature Industrial
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High Alumina Brick Thermal Resistant Insulation Brick HA60 HA70 HA75 HA80 Custom Size Options for High Temperature Industrial
| MOQ: | 1pcs |
| Price: | Negotiable |
| Standard Packaging: | Pallets |
| Delivery Period: | 5-10days |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
Detail Information
Place of Origin
China
Brand Name
Leadsun
Certification
ISO CE
Model Number
HA60 HA70 HA75 HA80
Cold Crushing Strength:
≥ 40 MPa
Aluminacontent:
48% - 90%
Porosity:
≤ 15%
Max Service Temperature:
1600°C - 1800°C
Refractoriness:
≥ 1750°C
Packing:
Standard Wooden Pallet
Usage:
Furnace Liner
Feature:
Corrosion Resistance
Density:
2.3 - 3.3 G/cm³
Classification:
HA60; HA70; HA75; HA80
Product Description
HA60 HA70 HA75 HA80 High Alumina Thermal Resistant Custom Size Insulation Brick
Product Overview
High-alumina brick is a shaped refractory material in refractory brick products, manufactured from refractory clay or other refractory raw materials. As part of the silicon-alumina series, it is widely used alongside clay bricks, magnesia bricks, corundum bricks, mullite bricks, and silicon carbide bricks. Classification is based on Al2O3 content: Class I (>75%), Class II (60-75%), and Class III (48-60%).
Key Characteristics
High alumina bricks feature higher refractoriness compared to clay bricks and semi-silica bricks. With substantial Al2O3 content approaching neutral refractory materials, they effectively resist erosion from both acidic and alkaline slags. Available in multiple grades including 60, 70, 75, and 80 based on AL2O3 content.
Product Specifications
- Main raw material: High bauxite clinker
- Key features: Excellent wear resistance, high fire resistance (1750-1790°C), superior impact resistance, extended service life, resistance to acid slag erosion
- Applications: Blast furnaces, hot blast stoves, hot air pipes, hot metal ladles, and incinerators
Technical Data
| Item | HA60 | HA70 | HA75 | HA80 |
|---|---|---|---|---|
| AL2O3 (%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SIO2 (%) | 32 | 22 | 20 | ≥18 |
| Fe2O3 (%) | ≤2.5 | ≤2.0 | ≤1.8 | ≤1.5 |
| Refractoriness (°C) | ≥1750 | ≥1780 | ≥1800 | ≥1850 |
| Bulk Density (g/cm³) | 2.35-2.4 | 2.45-2.5 | 2.5-2.55 | 2.75-2.8 |
| Softening Temperature Under Load (°C) | ≥1450 | ≥1510 | ≥1520 | ≥1600 |
| Apparent Porosity (%) | ≤24 | ≤23 | ≤21 | ≤18 |
| Cold Crushing Strength (MPa) | ≥45 | ≥50 | ≥60 | ≥85 |
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