Refractory bed material. Iron as fe2o3 Less than 3.5% Moisture (h2o) Less than 1% Physical properties Bulk density 1500 - 1800 kg/m³ Initial deformation temperature > 1300° c Particle size distribution Less than 1mm 100% Less than 180 to 200 micrometer 80% Less than 150 to 170 micrometer 50% Less than 63 micrometer 3% Note : other sizes also available on request 40 kg hdpe bags packing(in proper condition, without breakage)