Wholesale and retail price of the product name from the bulk upset mullite refractory ball 1,200,011,000,110,001 吨 mechanism Mo bundle refractory stone balls Al, 0,% ≥ 75 Fe2O3% ≤ - apparent porosity bulk density% ≤ 22 g / crn3≥ compressive strength of 2.4 N / ball ≥ 16000 refractoriness ℃ ≥1790 reheating linear change% 0.1-0.4 0.2MPa ≥1550 load softening temperature ≥ 40 times the thermal shock resistance of high temperature creep rate% - Regenerative refractory ball Specifications: Item Ⅰ Ⅱ Ⅲ Ⅳ Al2O3 (%); ≥ 65 70 75 85 Fe2O3 ≤ 1.5 1.2 1.0 1.0 Apparent porosity% 22 22 23 23 [object Object] bulk density (g / cm3) ≥2.2 2.3 2.5 2.8 [object Object] heap density (Kg / m3) 1400 ~ 1500 1400 ~ 1600 1500 ~ 1650 1600 ~ 1700 The specific surface area (m2 / m3) 200 ~ 220 coefficient of thermal expansion (3) (× 10-6 / ℃); ≥ 5.0 5.5 6 7 specific heat capacity of the reference value ( × 103 / Kg K) 1.1 1.1 1.2 1.3 1100 ℃ water cooling (times); ≥ 30 30 30 20 Temperature (℃); ≤ 1450 1550 1650 1750 Performance of high alumina refractory ball 92 Series 95 Series alumina (%) 9295 iron (%) ≤0.02 ≤0.02 Hardness (Mohs) 99 Water absorption (%) ≤0.01 ≤0.01 bulk density (g / cm3) ≥3.60 ≥3.70 compressive strength MPa ≥2000 ≥2250 wear (‰) ≤0.10 ≤0.08 color white white balls other refractory materials, welcome to buy silicon refractory ball mechanism, the mechanism mullite refractory ball, high alumina refractory ball mechanism, high strength and high alumina refractory ball, ball mullite refractory, low creep high alumina refractory ball, corundum refractory ball