1.Perlite ore 2.Size:5-325mesh1-8mm 3.Category:Raw perlite 4.Cast iron,cast steel 5.H. ... -150mesh, 200-325 mesh 1-3mm 3-5mm 0.3-0.6mm 1-2.8mm 0.8-2.5mm ,0.3-1mm,2-4mm etc 2.Physical ... -2.36%ElementCaOMgOFeOH2OImpurityContent0.97-1.67% 0.40-0.96% 0.36-1.57%≤1%≤0.5% Expansion ratios Hardness Specific gravity(g/cm3 ... )Expanded temperature\(°C) Setting time(seconds) ≥8.39 5.0-7 1.2-1.4 900-1000 5-103.Raw ...