Chrome-corundum is the main raw material of alumina, suitable for chromium oxide, etc.It is smelted at high temperature.Its hardness is similar to that of white corundum, and its toughness is higher than that of white corundum.The abrasive tools made by it have good durability and high finish.It is suitable for precision grinding of measuring tools, machine spindles, instrument parts, thread workpieces and sample grinding, etc.
Low chromium | Medium chromium | High chromium | |||||||
AI2O3 | Cr2O3 | Na2O | AI2O3 | Cr2O3 | Na2O | AI2O3 | Cr2O3 | Na2O | |
F12-F80 | ≥98.50 | 0.20- 0.45 | ≤0.50 | ≥98.20 | 0.45- 1.00 | ≤0.55 | ≥97.40 | 1.00- 2.00 | ≤0.55 |
F90-F150 | ≥98.50 | ≤0.55 | ≥98.20 | ≤0.60 | ≥97.00 | ≤0.60 | |||
F180-F220 | ≥98.00 | ≤0.60 | ≥97.80 | ≤0.70 | ≥96.50 | ≤0.70 | |||
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