Items Test index Items Test index Shape High liquidity globular powder Particle(um) 10-400 Colour Shallow pale resistance(Ω.CM) 1010-1013 Refractoriness°C 1750 Melting(°C) ≥1400 Temperature conductivity(m2/h) 0.000903-0.0015 Thermal conductivity(w/m·k) 0.054-0.095 Cold crushing strength(Mpa) ≥350 Refractive index 1.54