Black carborundum grit for sand blasting
1. Black carborundum description:
Black carborundum is quartz sand, petroleum coke in primary raw materials, smelting in the high temperature resistance furnace. Its hardness is between corundum and diamond; the mechanical strength is higher than alumina, brittle and sharp. It has a certain conductivity and thermal conductivity.
(1) As the abrasive: used for abrasive, such as grinding wheels, whetstone, grinding wheel, sand tiles etc.
(2) As the metallurgical deoxidizer and high temperature material.
Four main application areas of SiC: functional ceramics, advanced refractory, abrasives and metallurgical materials.
(3) High purity single crystal, used to manufacture semiconductors, manufacture of silicon carbide fibers.
(4) Silicon carbide is very hard, with excellent thermal conductivity, as a semiconductor and high temperature resistant to oxidation.
2. Black carborundum chemical analysis:
| Grain size | Chemical compositions | ||
| SiC | F.C | Fe2O3 | |
| F8-F360 | SIC :99%min | F.C :0.2%max | Fe203:0.2%max |
| F400-F600 | SIC :98.5%min | F.C :0.4%max | Fe203:0.4%max |
| F800-F1200 | SIC :97.5%min | F.C :0.6%max | Fe203:0.6%max |
| Melting point | 2600 °C | ||
| Hardness | 9.5 | ||
| Bulk density | 1.38g/cm3 | ||
| True density | 3.20-3.25g/cm3 | ||
3. Black carborundum sizes:
Refractory grade: sand 0-1mm 1-3mm 3-5mm 5-8mm
powder: 320F 280F 240F 200F
Sandblasting grade: F8#, F10#, F12#, F14#, F16#, F20#, F24#, F30#, F36#, F40#, F46#, F54#, F60#, F70#, F80#, F90#, F100#, F120#, F150#, F180#, F220#
Polishing grade: F240#, F280#, F320#, F400#, F500#, F600#, F800#, F1000#, F1200#, F1500
JIS240#, JIS280#, JIS320#, JIS400#, JIS500#, JIS600#, JIS800#, JIS1000#, JIS1200#, JIS1500#, JIS2000#, JIS2500#, JIS3000#, JIS4000#, JIS5000#, JIS6000#
4. About us:
Zhengzhou Haixu Abrasives Co., Ltd, founded in 1999, we have worked for producting silicon carbide for 24 years.
Black carborundum sand:
Black carborundum powder:
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