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  • Factory Cheap Hot Calcined Alumina For Refractory - Ceramic Granulation Powder (GA) Series for Alumina Ceramics – Yufa

    Factory Cheap Hot Calcined Alumina For Refractory - Ceramic Granulation Powder (GA) Series for Alumina Ceramics – Yufa

    Specification Series No./Features YF-997 YF-99D YF-99T YF-95D YF-95S Alumina Content ≥99% ≥99% ≥99% ≥95% ≥95% Original Particle Size(μm) 1.0-1.5 1.2-1.8 1.2-1.8 ~3 ~3 Apparent Density (g/cm3) ≥1.1 ≥1.05 ≥1.05 ≥1.15 ≥1.15 Density of Ceramic (g/cm3) ≥3.90 ≥3.87 ≥3.87 ≥3.70 ≥3.70 Ceramic Firing Temperature 1680℃-1750℃ 1680℃-1750℃ 1680℃-1750℃ 1680℃ 1680℃ Shrinkage of Ceramic 1.21 1.21 1.21 1.17−1.18 1.17−1.18 Appearance Color Yellow Yellow Yellow White White Moisture of Granu...
  • 2021 Good Quality Fused Alumina Single Crystal – Monocrystalline Fused Alumina – Yufa

    2021 Good Quality Fused Alumina Single Crystal – Monocrystalline Fused Alumina – Yufa

    Chemical Composition Chemical Composition Al2O3 % ≥ Na2O % ≤ SiO2 % ≤ Fe2O3 % ≤ Single Crystal Corundum 99 0.2 0.5 0.1   Pefa F F24, F30, F36, F40, F46, F54, F60, F80, F90, F100, F120, F150 Other spec are available upon request. Melting Process Tilting Furnace – Transfert – Cool Down – Barmac Crusher & Sorting – Sand Making – Warehouse QC To the monocrytalline fused alumina, the chemical composition of Al2O3, SiO2, Fe2O3,K2O...
  • China Cheap price Fused Dense Corundum - Fused Dense Corundum – Yufa

    China Cheap price Fused Dense Corundum - Fused Dense Corundum – Yufa

    Chemical Composition Chemical Composition Grit > 0.1mm Typical Value Fine Powder ≤ 0.1mm Typical Value Al2O3%≥ 99.2 99.6 99 99.4 SiO2%≤ 0.5 0.4 0.7 0.5 Fe2O3%≤ 0.1 0.03 0.1 0.05 TiO2%≤ 0.1 0.05 0.1 0.05 CaO%≤ MgO%≤ Na2O%≤ C%≤ 0.08 0.12 0.1 Apparent porosity %≤ 2 0.8 2 0.8 Bulk Density g/cm3≥ 3.9 3.93 True Density g/cm3≥ 3.96 3.99 3.96 3.98 Grit and Fine Powder 0.1-0 mm,...
  • Chinese wholesale Calcined Aluminium Oxide Alumina Powder - Calcined Alumina (RA) Series for Refractory Materials – Yufa

    Chinese wholesale Calcined Aluminium Oxide Alumina Powder - Calcined Alumina (RA) Series for Refractory Materials – Yufa

    Specification Model No.  Chemical Composition(%) True Density Apparent Density Grain Size +325 Mesh Original Crystal Water Absorption Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤%  g/cm3 ≥ g/cm3 > D50 (μm) <% D50(μm) % RA1G 99.5 0.15 0.04 0.10 0.15 3.92 0.7 1.5-2.2 1 ~1.0   1. Fully grinding 2. Low sodium 3. Small primary crystal size 4. Good particle size distribution 5. High activity Used to produce various high-end refractory materials ...
  • 2021 Latest Design White Fused Alumina Grits - White Fused Alumina for Refractories – Yufa

    2021 Latest Design White Fused Alumina Grits - White Fused Alumina for Refractories – Yufa

    Chemical Composition Chemical Composition Grit > 0.1mm Typical Value Fine Powder ≤ 0.1mm Typical Value Al2O3%≥ 99.2 99.5 99 99.3 SiO2%≤ 0.1 0.03 0.15 0.08 Fe2O3%≤ 0.1 0.03 0.1 0.06 K2O+Na2O%≤ 0.35 0.25 0.4 0.3 Apparent Porosity %≤ 8 6     Common Bulk Density g/cm3≥ 3.6 3.65     High Bulk Density g/cm3≥ 3.68 3.72     True Density g/cm3≥ 3.9 3.93 3.9 3.93   Chemical Composition Of Low Sodium, Mi...
  • High Quality White Fused Alumina Oxide - White Fused Alumina for Refractories – Yufa

    High Quality White Fused Alumina Oxide - White Fused Alumina for Refractories – Yufa

    Chemical Composition Chemical Composition Grit > 0.1mm Typical Value Fine Powder ≤ 0.1mm Typical Value Al2O3%≥ 99.2 99.5 99 99.3 SiO2%≤ 0.1 0.03 0.15 0.08 Fe2O3%≤ 0.1 0.03 0.1 0.06 K2O+Na2O%≤ 0.35 0.25 0.4 0.3 Apparent Porosity %≤ 8 6     Common Bulk Density g/cm3≥ 3.6 3.65     High Bulk Density g/cm3≥ 3.68 3.72     True Density g/cm3≥ 3.9 3.93 3.9 3.93   Chemical Composition Of Low Sodium, Mi...
  • Competitive Price for White Fused Alumina For Grinding Wheel - Micro Sodium White Fused Alumina – Yufa

    Competitive Price for White Fused Alumina For Grinding Wheel - Micro Sodium White Fused Alumina – Yufa

    Compared With β-Al2O3 And α-Al2O3 Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3. Compared with β-Al2O3, α-Al2O3 has ‘three highs...
  • Chinese Professional Fused Magnesium Alumina Spinel - Fused Alumina Magnesia Spinel – Yufa

    Chinese Professional Fused Magnesium Alumina Spinel - Fused Alumina Magnesia Spinel – Yufa

    Chemical Composition Chemical Composition       MA-72       MA-75       MA-78       MA-85 Al2O3%≥ 70 – 74 74 – 77 77 – 82 82 – 87 MgO%≤ 24 – 28 21 – 24 16 – 21 11 – 16 SiO2%≤ 0.4 0.4 0.4 0.4 Fe2O3%≤ 0.25 0.25 0.25 0.25 Apparent Porosity %≤ 5 3 3 3 Bulk Density g/cm3≥ 3.3 3.3 3.3 3.3 Grit and Fine Powder 0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 ...
  • 2021 Good Quality Fused Aluminium Magnesia Spinel - Fused Alumina Magnesia Spinel – Yufa

    2021 Good Quality Fused Aluminium Magnesia Spinel - Fused Alumina Magnesia Spinel – Yufa

    Chemical Composition Chemical Composition       MA-72       MA-75       MA-78       MA-85 Al2O3%≥ 70 – 74 74 – 77 77 – 82 82 – 87 MgO%≤ 24 – 28 21 – 24 16 – 21 11 – 16 SiO2%≤ 0.4 0.4 0.4 0.4 Fe2O3%≤ 0.25 0.25 0.25 0.25 Apparent Porosity %≤ 5 3 3 3 Bulk Density g/cm3≥ 3.3 3.3 3.3 3.3 Grit and Fine Powder 0.1-0 mm, 0.2-0 mm, 0.5-0 mm, 1-0 mm, 1-0.5 mm, 3-1 ...
  • Factory Price White Aluminum Oxide Abrasives - White Fused Alumina for Abrasives – Yufa

    Factory Price White Aluminum Oxide Abrasives - White Fused Alumina for Abrasives – Yufa

    PEFA F Grain & Micro Powder: Chemical Composition And Particle Size Composition Standard Chemical Composition  Chemical Composition Na2O%≤ Al2O3%≥ SiO2%≤ Fe2O3%≤ Magnetic Object %≤  Common 0.3 99.4 0.1 0.05 0.001 Micro Sodium 0.06 99.7 0.1 0.03 0.001 F12 - F220 Particle Size Composition  Grain Size Marking Ultra Coarse Grains Coarse Grains Medium Grains Mixed Grains Fine Grains 100% Pass The Following Sieves/Sieve Number Can...
  • OEM Factory for Ceramic Insulators - Calcined Alumina (RA) Series for Refractory Materials – Yufa

    OEM Factory for Ceramic Insulators - Calcined Alumina (RA) Series for Refractory Materials – Yufa

    Specification Model No.  Chemical Composition(%) True Density Apparent Density Grain Size +325 Mesh Original Crystal Water Absorption Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤%  g/cm3 ≥ g/cm3 > D50 (μm) <% D50(μm) % RA1G 99.5 0.15 0.04 0.10 0.15 3.92 0.7 1.5-2.2 1 ~1.0   1. Fully grinding 2. Low sodium 3. Small primary crystal size 4. Good particle size distribution 5. High activity Used to produce various high-end refractory materials ...
  • Online Exporter White Fused Alumina For Sandblasting - White Fused Alumina for Refractories – Yufa

    Online Exporter White Fused Alumina For Sandblasting - White Fused Alumina for Refractories – Yufa

    Chemical Composition Chemical Composition Grit > 0.1mm Typical Value Fine Powder ≤ 0.1mm Typical Value Al2O3%≥ 99.2 99.5 99 99.3 SiO2%≤ 0.1 0.03 0.15 0.08 Fe2O3%≤ 0.1 0.03 0.1 0.06 K2O+Na2O%≤ 0.35 0.25 0.4 0.3 Apparent Porosity %≤ 8 6     Common Bulk Density g/cm3≥ 3.6 3.65     High Bulk Density g/cm3≥ 3.68 3.72     True Density g/cm3≥ 3.9 3.93 3.9 3.93   Chemical Composition Of Low Sodium, Mi...
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