Alumina-rich refractory mortar is a high-performance refractory material primarily composed of calcined bauxite. It boasts high refractoriness, superior mechanical strength, and excellent resistance to chemical corrosion, making it widely used in furnace and kiln joints across industries including steel, glass, ceramics, and cement. · Exceptional High-Temperature Resistance: Maintains structural stability in extreme thermal environments. · High Mechanical Strength: Withstands heavy operational loads and mechanical stress. · Superior Chemical Resistance: Effectively resists slag erosion and chemical attacks in harsh operating conditions.
Steel Industry: Critical joints in blast furnaces and hot blast stoves.
Glass Industry: Seam reinforcement in glass melting furnaces.
Ceramics Industry: Thermal joint applications in ceramic kilns.
Cement Industry: High-temperature zone sealing in cement rotary kilns.
Index | HARM-30 | HARM--38 | HARM--42 | HARM--45 | HARM--45P | |
(Al2O3) /% ≥ | 30 | 38 | 42 | 45 | 45 | |
Refractory degree/℃ ≥ | 1620 | 1680 | 1700 | 1720 | 1720 | |
Bending strength at room temperature/MPa | After drying at 110℃ ≥ | 1.0 | 1.0 | 1.0 | 1.0 | 2.0 |
After burning at 1200℃×3h≥ | 3.0 | 3.0 | 3.0 | 3.0 | 6.0 | |
0.2MPa load softening temperature T 2.0/℃ ≥ | - | - | - | - | 1200 | |
Heating permanent line change rate/% | After burning at 1200℃×3h | -5~+1 | ||||
Bond time/min | 1~3 | |||||
Particle size/% | <1.0mm | 100 | ||||
≥0.5mm ≤ | 2 | |||||
≤0.075mm ≥ | 50 | |||||
If you need other models, please send us the specifications.
Steel Industry: Critical joints in blast furnaces and hot blast stoves.
Glass Industry: Seam reinforcement in glass melting furnaces.
Ceramics Industry: Thermal joint applications in ceramic kilns.
Cement Industry: High-temperature zone sealing in cement rotary kilns.
Index | HARM-30 | HARM--38 | HARM--42 | HARM--45 | HARM--45P | |
(Al2O3) /% ≥ | 30 | 38 | 42 | 45 | 45 | |
Refractory degree/℃ ≥ | 1620 | 1680 | 1700 | 1720 | 1720 | |
Bending strength at room temperature/MPa | After drying at 110℃ ≥ | 1.0 | 1.0 | 1.0 | 1.0 | 2.0 |
After burning at 1200℃×3h≥ | 3.0 | 3.0 | 3.0 | 3.0 | 6.0 | |
0.2MPa load softening temperature T 2.0/℃ ≥ | - | - | - | - | 1200 | |
Heating permanent line change rate/% | After burning at 1200℃×3h | -5~+1 | ||||
Bond time/min | 1~3 | |||||
Particle size/% | <1.0mm | 100 | ||||
≥0.5mm ≤ | 2 | |||||
≤0.075mm ≥ | 50 | |||||
If you need other models, please send us the specifications.
