Calcined alumina

Description: We mainly provide following alumian products: a-AL2O3 for fine structural ceramics, a-AL2O3 for electric ceramics, a-AL2O3 for refractories, a-AL2O3 micro powder for stainless steel polishing. Product Feature: (1)Thefirstsetoftunnelkilnwiththelengthof120minChinaforproducinga-AL2O3. (2)Featuredwithsmalltemperaturedifferenceandlongsockingtime. (3)Highcrystalphasetransitionrateandgoodbatchstability. (4)Theproduceswithdifferentgriansizescanbeproducedwithcompositeadditiveuponthecustomers'request. (5)Itiseasytomill,andthemillingtimecanbereducedby10%-15%. (6)Theslurryhasgoodflowailityforhotpressing. Advantages: 1) Excellent performance,a-AL2O3 95min 2) Competitive EXW price 680$ 3) Ideal refractory raw materials 4) 10,000 tons/year Chemical and physical parameters Item Grades Chemicalcomposition(%) Theproportionoftrue (g/cm3) α-Al2O3 (%) Theoriginalgrainsize (μm)Al2O3 SiO2 Fe2O3 Na2OYAF--1 ≥99.7 ≤0.04 ≤0.05 ≤0.05 ≥3.96 ≥96 4 5YFA--2 ≥99.7 ≤0.04 ≤0.05 ≤0.05 ≥3.95 ≥95 3 4YFA--3 ≥99.7 ≤0.04 ≤0.05 ≤0.04 ≥3.95 ≥95 2 3YFA--5 ≥99.7 ≤0.04 ≤0.05 ≤0.04 ≥3.95 ≥95 2YFA--6 ≥99.7 ≤0.04 ≤0.05 ≤0.05 ≥3.95 ≥95 1 2YFA--7 ≥99.7 ≤0.04 ≤0.05 ≤0.05 ≥3.95 ≥95 1