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  • High Quality Alpha Calcined Alumina - Low-Sodium Calcined Alumina (SA) Series for Special Glasses – Yufa

    High Quality Alpha Calcined Alumina - Low-Sodium Calcined Alumina (SA) Series for Special Glasses – Yufa

    Specification Model No.  Chemical Composition(%) True Density Grain Size Distribution Original Grain Size D50(μm) Magnetic material Apparent Density Conversion Rate Features Recommended Applications Al2O3 ≥ % SiO2 ≤ % Fe2O3 ≤ % Na2O ≤ % LOI ≤ %  g/cm3 ≥ <%  g/cm3 ≥ % SA601-1 99.8 0.05 0.02 0.04 <0.1 3.96 Customer requirements 2.0-3.0 0.01 0.86 >96 1. Low alkaline 2. Low Fe2O3 content 3. High purity 4. Meet ROHS and other requirements 1. LCD glass substrate ...
  • OEM/ODM China Fused Magnesia Alumina Spinel - Fused Alumina Magnesia Spinel – Yufa

    OEM/ODM China Fused Magnesia 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 ...
  • Factory Free sample Small Ceramic Insulators – Low Sodium Calcined Alumina (CA) Series for Ceramics – Yufa

    Factory Free sample Small Ceramic Insulators – Low Sodium Calcined Alumina (CA) Series for Ceramics – Yufa

    Specification Model No. Chemical Composition(%) True Density Apparent Density Grain Size D50 +325 Mesh Original Crystal D50 Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤%  g/cm3 ≥ g/cm3 > D50 (μm) <% D50(μm) CA1A 99.5 0.05 0.03 0.10 0.1 3.97 >0.95 ~70 5.0-6.0 1. High temperature calcination 2. Low sodium 3. Large crystal 4. High conversion rate 5. Stable shrinkage. Good fluidity 6. High insulation performance 7. High mechanical strength 1. ...
  • Competitive Price for White Fused Alumina For Grinding Wheel - White Fused Alumina for Refractories – Yufa

    Competitive Price for White Fused Alumina For Grinding Wheel - 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...
  • 100% Original Corundum White - White Fused Alumina for Refractories – Yufa

    100% Original Corundum White - 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...
  • Good Quality Fused Mono-Cystalline Alumina - Monocrystalline Fused Alumina – Yufa

    Good Quality Fused Mono-Cystalline Alumina - 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...
  • Manufacturing Companies for Corundum Grains For Abrasive - Micro Sodium White Fused Alumina – Yufa

    Manufacturing Companies for Corundum Grains For Abrasive - 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...
  • Lowest Price for White Alumina Powder - White Fused Alumina for Abrasives – Yufa

    Lowest Price for White Alumina Powder - 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...
  • Manufacturer for Artificial Dense Corundum - Fused Dense Corundum – Yufa

    Manufacturer for Artificial 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,...
  • PriceList for Reactive Alpha Alumina Powder - Low Sodium Calcined Alumina (CA) Series for Ceramics – Yufa

    PriceList for Reactive Alpha Alumina Powder - Low Sodium Calcined Alumina (CA) Series for Ceramics – Yufa

    Specification Model No. Chemical Composition(%) True Density Apparent Density Grain Size D50 +325 Mesh Original Crystal D50 Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤%  g/cm3 ≥ g/cm3 > D50 (μm) <% D50(μm) CA1A 99.5 0.05 0.03 0.10 0.1 3.97 >0.95 ~70 5.0-6.0 1. High temperature calcination 2. Low sodium 3. Large crystal 4. High conversion rate 5. Stable shrinkage. Good fluidity 6. High insulation performance 7. High mechanical strength 1. ...
  • Factory wholesale Calcined Alumina For Making Polished Wax - Ceramic Granulation Powder (GA) Series for Alumina Ceramics – Yufa

    Factory wholesale Calcined Alumina For Making Polished Wax - 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...
  • China Cheap price Magnesia Alumina Spinel - Fused Alumina Magnesia Spinel – Yufa

    China Cheap price Magnesia 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 ...
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