Kind | High alumina | Vltra-low cement high alumina | |||||
Brand | AJ-1 | AJ-1A | AJ-2 | AJ-3 | CJ | CJ-2 | |
Chemical Composition(%) | Al2O3 | 55 | 60 | 65 | 70 | 70 | 75 |
SiO2 | 35 | 30 | 25 | 20 | 20 | 15 | |
SiC | - | - | 3 | 5 | 5 | 8 | |
CaO | 3.5 | 2.5 | 1.2 | 1.0 | 0.8 | 0.6 | |
Cold crushing Strength (MPa) | 110℃×24hAfter drying at | 15 | 18 | 20 | 22 | 12 | 10 |
1250℃×3hAfter firing at | 25 | 28 | 30 | 30 | 20 | 22 | |
Cold bending strength (MPa) | 110℃×24hAfter drying at | 6 | 8 | 5 | 5 | 4 | 5 |
1250℃×3hAfter firing at | 10 | 10 | 12 | 13 | 10 | 12 | |
Linear changing after burnt(%) | 1250℃×3hAfter firing at | ±1.6 | ±1.4 | ±1.3 | ±1.2 | ±1.0 | ±0.8 |
Bulk density (g/cm3) | 1250℃×3hAfter firing at | 2.25 | 2.3 | 2.4 | 2.45 | 2.8 | 2.9 |
Amount for construction (kg/cm3) | 2400 | 2450 | 2500 | 2550 | 3000 | 3100 | |
Additional water (%) | 8—9 | 7.5—8.5 | 7—8 | 6.5—7.5 | 5—7 | 4.5—6.5 | |
Method of constructionMethod of bonded | Jolt moulding (Water) | ||||||
Characteristic | High strength Corrosion resistance Water set Volume stabilityThermal shock resistance Flame blowing resistance Spalling resistance Fiberfrax added May be used easily by casting method with low consumption perton of pigiron Complex and narrow kiln′s <, o:p> body and components with dense anchor firm wares |
Contact information
Website:http://www.jnrefractory.com
Contact: Mr. Niu
Tel: +86-371-64372566
Fax: +86-371-64372588
Whatsapp: +86-15137151612
Mobile Phone: +86-15137151612
Email: info@jnrefractory.com