... 160CUC-150CUC-140maximum service temperature /°C18001700160015001400Refractoriness,°C≥1790≥1790≥1790____Bulk density,g/cm3(110°C,24h)≥2.8≥2.7≥2. ... after reheating,%(1500°C,3h)±1.0±1.0±1.0(1400°C,3h)±1.0(1400°C,3h)±1.0Compressive ... strength /MPa110°C,24h≥25≥50 ≥25≥50 ... 50 ≥25≥40(1400°C,3h)≥25≥40(1400°C,3h)1500°C,3hModulus of rupture,MPa (1400°C,1h)≥4.5≥3. ...