D50 value of FEPA,JIS,P,W standard of black silicon carbide
Black silicon carbide,is also called black carborundum or Black SiC,is produced in electrical internal resistance furnaces from high purity silica sands and
petroleum coke,its combination of being very hard and sharp makes it a very aggressive abrasive.
Zhengzhou haixu abrasives co.,ltd,founded in 1999,has been manufacturing and exporting for more than 20years.
We produce micropowder under FEPA,JIS,P and W standard separately ,and the D50 value is as follows:
| Size | D50(UM) | Size | D50(UM) | Size | D50(UM) | Size | D50(UM) |
| JIS#240 | 57.0±3.0 | P240 | 58.5±2.0 | F230 | 53.0±3.0 | W63 | 63-50 |
| JIS#280 | 48.0±3.0 | P280 | 52.2±2.0 | F240 | 44.5±2.0 | W50 | 50-40 |
| JIS#320 | 40.0±2.5 | P320 | 46.2±1.5 | F280 | 36.5±1.5 | W40 | 40-28 |
| JIS#360 | 35.0±2.0 | P360 | 40.5±1.5 | F320 | 29.2±1.5 | W28 | 28-20 |
| JIS#400 | 30.0±2.0 | P400 | 35.0±1.5 | F360 | 22.8±1.5 | W20 | 20-14 |
| JIS#500 | 25.0±2.0 | P500 | 50.2±1.5 | F400 | 17.3±1.0 | W14 | 14-10 |
| JIS#600 | 20.0±1.5 | P600 | 25.8±1.0 | F500 | 12.8±1.0 | W10 | 10-7 |
| JIS#700 | 17.0±1.5 | P800 | 21.8±1.0 | F600 | 9.3±1.0 | W7 | 7-5 |
| JIS#800 | 14.0±1.0 | P1000 | 18.3±1.0 | F800 | 6.5±1.0 | W5 | 5-3.5 |
| JIS#1000 | 11.5±1.0 | P1200 | 15.3±1.0 | F1000 | 4.5±0.8 | ||
| JIS#1200 | 9.5±0.8 | P1500 | 12.6±1.0 | F1200 | 3.0±0.5 | ||
| JIS#1500 | 8.0±0.6 | P2000 | 10.3±0.8 | ||||
| JIS#2000 | 6.7±0.6 | P2500 | 8.4±0.5 | ||||
| JIS#2500 | 5.5±0.5 | P3000 | 6.7±0.5 | ||||
| JIS#3000 | 4.0±0.5 | P4000 | 5.5±0.5 | ||||
| JIS#4000 | 3.0±0.4 | P5000 | 4.0±0.5 |