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Wholesale Dealers of Corundum Refractory - 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... -
Reasonable price High Quality Calcined Alumina - 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 Supply Alpha Alumina Oxide Powder - Low-Sodium Calcined Alumina (HA) Series Coarse Powder – Yufa
Specification Model No. Chemical Composition (%) True Density Apparent Density Original Crystal Conversion Rate Features Recommended Applications Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤% g/cm3 ≥ g/cm3 ＞ D50 (μm) ≥% HA5 99.5 0.05 0.02 0.12 0.1 3.95 0.9 6.5-8.0 95 1. Unground & Low sodiume 2. Near-spherical crystal 3. Large crystal & Fully developed 4. Less shrinkage & Large output 5. Good quality stability 1. Suitable for high-performance ceramics 2. Sui... -
High Quality for White Aluminum Oxide Abrasive - 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... -
Hot New Products Refractory Magnesite 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 ... -
Hot New Products Aluminum Oxide Grain - 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,... -
Cheap price Alpha Alumina For Polishing - 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. ... -
Cheap price Alpha Alumina For Polishing - Calcined Alumina (FA) Series for Heat Conduction – Yufa
Applications Chemical Composition (%) Ture Density Apparent Density Grain Size Original Crystal Oil Absorption Rate Conversion Rate +325 Residual Boron Features Recommended Applications Model No. Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤% g/cm3 ≥ g/cm3 ＞ D50 (μm) D50 (μm) ml ≥% ＜% ＜% FA3 99.5 0.1 0.03 0.08 0.1 3.96 >0.85 ~2.8 2.1-2.7 ＜17 ≥95 0.5 / 1. High temperature calcination 2. Deep grinding & Good flowability 3. Reasonable particle size distrib... -
Factory wholesale Calcin 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. ... -
Cheap PriceList for Calcined Alumina For Electronic Ceramics - Calcined Alumina (PA) Series for Polishing – Yufa
Specification Model No. Chemical Composition(%) Mesh Grain Size Ｄ50 +325 Mesh Original Crystal Conversion Rate Oil Absorption Value Cutting force Glossiness Al2O3 μm % μm % PA200S ≥99 65-75 >65 >95 +++++ ++ PA500S ≥99 300 5.5-6.5 <3 2.5-3.5 >95 +++++ ++ PA200 ≥99 200 18-22 50-55 6.0-10 >95 10-20 +++++ ++ PA500 ≥99 500 14-16 <30 >95 23 +++++ ++ PA800 ≥99 800 5.5-6.5 <5 >95 17 +++++ ++ PA2000 ≥99 2000 ~6 <1 5.5-6.0 95 14.2 +++ +... -
PriceList for Aluminium Oxide Powder - 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... -
Factory Free sample Small 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 ...
