Cov cib refractory nkhaus muaj Al2O3 li 30% ~ 45%, thiab cov ntsiab lus silica qis dua 78%. Cov cib refractory nkhaus yog cov khoom siv refractory acid tsis muaj zog. Cov block refractory nkhaus yog tiv taus acid slag thiab kev yaig ntawm cov pa roj acid, tab sis nws lub peev xwm tiv taus alkali tsis zoo me ntsis. Cov block refractory nkhaus muaj cov yam ntxwv ntawm kev ua haujlwm thermal zoo thiab kev tiv taus thermal poob siab zoo.
| Cov Pob Zeb Hluav Taws Xob Nchuav | |||
| Cov Ntawv Qhia | 40 – 45% Alumina Fireclay Cib | 30 – 35% Alumina Fireclay Cib | |
| Khoom | Chav tsev | 1600°C | 1500°C |
| Qhov Ceev Ntau | g/cm³ | 2.2 | 2.1 |
| Pom tseeb porosity | % | 22 | 24 |
| Modulus ntawm Rupture | kg/cm² | 90 | 80 |
| Lub zog tsoo txias | kg/cm² | 300 | 250 |
| Kev nthuav dav kab 1350 ° C | % | 0.2 | 0.2 |
| Refractoriness Nyob rau hauv Load | °C | 1450 xyoo | 1300 |
Cov cib hluav taws nkhaus feem ntau yog siv rau cov txheej rwb thaiv tsev ntawm cov chaw kub lossis thaub qab cov txheej rwb thaiv tsev kub ntawm lwm cov ntaub ntawv refractory. cov txheej rwb thaiv tsev lossis cov ntaub ntawv rwb thaiv tsev kub ntawm kev lag luam, xws li ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces ntawm synthetic ammonia, roj generators thiab high-temperature shullte kilns, thiab lwm yam.