White fused alumina 200F
The main component of white fused corundum is Al2O3, which is a product of fused corundum produced by melting high-purity alumina powder at high temperature in an electric arc furnace (melting temperature is up to 2050 degrees). Then after solidifying, agglomerating, cooling, it forms to high purity fused corundum blocks. Due to the high-temperature melting production process, alumina is mainly transformed into the crystal form of α-Al2O3. Fused corundum has good toughness, high thermal resistance, and high chemical stability.
In addition, the fused corundum produced by our company has low sodium content and good thermal performance. It can be used to produce corundum casting paint, foundry coating, and can also be directly used as shell-molding substrate material and shell-molding spay sand for precision casting.
Available Sizes：
Fused corundum fine powder | 100#-0(100F),200#-0(200F),240#-0(240F),270#-0(270F),320#-0(320F) |
Fused corundum grit | F60,F80,F90,F100,F120,F150,F180,F220(200um，180um，150um，120um，100um，80um，70um，60um) |
Fused corundum micropowder | JIS 240#,JIS280#,JIS320#,JIS360#,JIS400#,JIS600#,JIS700#,JIS800#,JIS1000#,JIS1200#,JIS1500#,JIS2000#,JIS3000#,JIS 4000#,JIS6000#,JIS8000#(63um，50um，40um，28um，20um，10um，7um，5um，3.5um，2.5um，1.5um) |
White fused alumina 200F Chemical composition（Typical value）:
Fused corundum fine powder (200-0#) | AL2O3 | 99.55% |
SiO2 | 0.04% | |
NA2O | 0.22% | |
Fe2O3 | 0.04% | |
CaO | 0.03% | |
Fused corundum grit (185 micron F80) | AL2O3 | 99.10% |
SiO2 | 0.16% | |
NA2O | 0.32% | |
Fe2O3 | 0.08% | |
CaO | 0.04% | |
Fused corundum grit（100 micron F120 ） | AL2O3 | 99.10% |
SiO2 | 0.16% | |
NA2O | 0.32% | |
Fe2O3 | 0.08% | |
CaO | 0.04% | |
Fused corundum micropowder（50 miron JIS320 mesh） | Al2O3 | 99.67% |
SiO2 | 0.02 | |
NA2O | 0.15 | |
Fe2O3 | 0.01 | |
CaO | 0.03 | |
Fused corundum micropowder（20 micron JIS800 mesh） | Al2O3 | 99.27% |
SiO2 | 0.14 | |
NA2O | 0.30 | |
Fe2O3 | 0.06 | |
CaO | 0.05 |
White fused alumina 200F Physical properties：
Typical physical properties | |
Hardness: | Mohs:9.0 |
Maximum service temperature: | 1900 Degree |
Melting Point: | 2250 Degree |
Specific Gravity: | 3.95g/cm3 |
Volume density | 3.6g/cm3 |
Bulk density(LPD): | 1.55-1.95 g/cm3 |
Color: | White |
Particle shape: | Angular |
Product features of white fused alumina 200F
1. High refractoriness. It can resistant to high temperature up to 1900°C.
2. High strength with mohs hardness of 9.0.
3. High density.
4. Resistant to most acid and alkali.
5. Chemical stability.
Applications of white fused alumina 200F
1. Refractory castable, Kiln construction.
2. Foundry coating paint for casting for shell molding.
3. Foundry coating for Precision casting and 3D printing.
4. Thermal conductive glues or additives.
