Henan Hongtai Kiln Refractory Co.,Ltd. |
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Product name and performanceindex | Low temperature | High Temperature | Fender | ||||||||
Material | Cordierite/Mullite | Alundum/Mullite | Electro-melting Alundum | Altitude Aluminium | |||||||
M70 | M60 | ||||||||||
Al₂o₃(%) | 34.5±1.0 | 70±1.0 | 60±1.0 | 85±1.0 | 56~60 | ||||||
Sio₂(%) | 49.7±1.5 | 29±1.0 | 38±10 | 13±1.0 | 30~35 | ||||||
Mgo(%) | 13.5±1.5 | Modicum | Modicum | Modicum | Modicum | ||||||
other (%) | <2.0 | <2.0 | <3.0 | <4.0 | <8.0 | ||||||
W/v (g/cm³) | 0.7~0.85 | 1.00~1.15 | 0.95~1.05 | 1.65~1.95 | 1.20~1.55 | ||||||
(×10-6/℃)coefficient of thernal expansion | 2.0~3.0 | 4.5~5.2 | 4.2~5.0 | 6.5~7.5 | 7.0~8.0 | ||||||
Thermal conductivity (W/n.k) | ≥1.1 | ≥1.0 | ≥1.0 | ≥1.0 | ≥1.0 | ||||||
(℃)Highest working temperature | 1350 | 1600 | 1550 | 1600 | 1500 | ||||||
Compressive strength(Normal temperature) | A向 | >23.0 | >26.0 | >23.0 | >25.0 | >20.0 | |||||
B向 | >5.5 | >10.5 | >9.0 | >5.5 | >5.5 |