Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:25 m.t.
Supply Capability:2000 m.t./month
Products | High Alumina refractory firebricks for furnaces and Kilns |
Applications | furnaces and Kilns |
Features | 1,Good performance of anti alkali erosion resulted from raw material and fuel |
2,Good thermal shock resistance | |
3,High mechanical resistance | |
4,Low porosity | |
5,low thermal conductivity |
Technical Data
Index Products | Spalling Resistant High Alumina Bricks | |
Al2O3 | % | ≥70 |
Fe2o3 | % | / |
Bulk Density | g/cm3 | ≥2.5 |
Apparent Porosity | % | ≥23 |
Refractoriness under Load(0.2MPa) | ℃ | ≥1470 |
Cold Crushing Strength | Mpa | ≥70 |
Thermal Shock(1100℃,water cooling) | times | ≥25 |
Apperance Control Item | Method | Sampling Size | Specification |
1,Crack
| Visual Check | 100% | Crack Width<0.5mm< span=""> Crack length<20mm< span=""> |
2,Chip,Lost corner
| Visual Check | 100% | A+B+C<30mm< span=""> |
3,Lamination | Visual Check | 100% | No Lamination |
4,Spot | Visual Check | 100% | A+B<10mm< span=""> Or <3spot/piece |
5,Fin | Visual Check | 100% | No Fin |
Size &Dimension | |||
1,Shape | ASTM C134 | Follow ISO5022 | Conform to drawing |
2,Dimension
| ASTM C134 | Follow ISO5022 | As size tolerance in drawing For General Brick << span="">100mm drawing±1.5mm >100mm drawing±1.5% For Sk38 Brick All side:drawing ±1mm For Rotary Kiln Brick L,a,b:drawing±1.0mm H:drawing±2.0mm |
3,Squareness | ASTM C134 | Follow ISO5022 | << span="">100mm drawing±1.0mm >100mm drawing±1.0% |
4, Warpage | ASTM C134 | Follow ISO5022 | For General Brick << span="">0.4%from diagonal line For Basic Brick used in Rotary Kiln << span="">0.2%from diagonal line |
5,Slope | ASTM C134 | Follow ISO5022 | Drawing ±1mm |
6,Taper | ASTM C134 | Follow ISO5022 | << span="">1.5mm |
