Green Sic Powder 280# For Polishing Optical Glass
Green Sic Powder 280# For Polishing Optical Glass is an extremely hard (Knoop 2600 or Mohs 9.4) man made mineral that possesses high thermal conductivity (100 W/m-K). It also has high strength at elevated temperatures (at 1000°C, Green SiC is 7.5 times stronger than Al2O3). Green SiC has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600°C, and it does not melt at normal pressures but instead dissociates at 2815.5°C.
PHYSICAL PROPERTIES
| Specific Weight | 3.95 g/ cm3 |
| Mohs Hardness | 9.5 |
| Maximum service temperature | 1900℃ |
| Melting Point | 2250℃ |
TYPICAL CHEMICAL ANALISIS [%]
| SiC | Fe2O3 | F.C | F.Si | SiO2 | LOI |
| 98.0-99.5 | ≤0.15 | ≤0.30 | ≤0.40 | ≤0.70 | < 0.09 |
PARTICLE SIZE DISTRIBUTION
CHAPTER Ⅰ（JIS STANDARD）
| Size | DO(um) | D3(um) | D50(um) | D94(um) |
| #240 | ≤127 | ≤103 | 57.0±3.0 | ≥40 |
| #280 | ≤112 | ≤87 | 48.0±3.0 | ≥33 |
| #320 | ≤98 | ≤74 | 40.0±2.5 | ≥27 |
| #360 | ≤86 | ≤66 | 35.0±2.0 | ≥23 |
| #400 | ≤75 | ≤58 | 30.0±2.0 | ≥20 |
| #500 | ≤63 | ≤50 | 25.0±2.0 | ≥16 |
| #600 | ≤53 | ≤41 | 20.0±1.5 | ≥13 |
| #700 | ≤45 | ≤37 | 17.0±1.5 | ≥11 |
| #800 | ≤38 | ≤31 | 14.0±1.0 | ≥9.0 |
| #1000 | ≤32 | ≤27 | 11.5±1.0 | ≥7.0 |
| #1200 | ≤27 | ≤23 | 9.5±0.8 | ≥5.5 |
| #1500 | ≤23 | ≤20 | 8.0±0.6 | ≥4.5 |
| #2000 | ≤19 | ≤17 | 6.7±0.6 | ≥4.0 |
| #2500 | ≤16 | ≤14 | 5.5±0.5 | ≥3.0 |
| #3000 | ≤13 | ≤11 | 4.0±0.5 | ≥2.0 |
| #4000 | ≤11 | ≤8.0 | 3.0±0.4 | ≥1.8 |
| #6000 | ≤8.0 | ≤5.0 | 2.0±0.4 | ≥0.8 |
| #8000 | ≤6.0 | ≤3.5 | 1.2±0.3 | ≥0.6 |
CHAPTER Ⅱ（FEPA STANDARD）
| Size | D3(um) | D50(um) | D94（um) |
| F230 | ＜82 | 53.0±3.0 | >34 |
| F240 | ＜70 | 44.5±2.0 | >28 |
| F280 | ＜59 | 36.5±1.5 | >22 |
| F320 | ＜49 | 29.2±1.5 | >16.5 |
| F360 | ＜40 | 22.8±1.5 | >12 |
| F400 | ＜32 | 17.3±1.0 | >8 |
| F500 | ＜25 | 12.8±1.0 | >5 |
| F600 | ＜19 | 9.3±1.0 | >3 |
| F800 | ＜14 | 6.5±1.0 | >2 |
| F1000 | ＜10 | 4.5±0.8 | >1 |
| F1200 | ＜7 | 3.0±0.5 | >1(at 80%) |
| F1500 | ＜5 | 2.0±0.4 | >0.8(at 80%) |
| F2000 | ＜3.5 | 1.2±0.3 | >0.5(at 80%) |
Mainly Applications
-Bonded Abrasives and Coated abrasives
-Blasting,surface Treatment,Rust Removal
-Wet and dry blast media,grinding and polishing etc
-Floor/Wall laminates,Wear-resistant
-Ceramic products: Ceramic and Tiles,Ceramic filter plate,ceramic membrane etc
-Teflon painting etc
– Heat insulating material
-Grinding wheels,Cup wheels,Whetstone,polishing pads etc
-Used for crucibles, parts for kiln burning, mechanical seals, and parts materials to produce semiconductors
Package for green sic silicon carbide:
- 25KG small bags
- Small bags + pallet
