D50 Value of FEPA,JIS,P,W standard of brown fused alumina micropowder
Brown Fused alumina,also called brown aluminum oxide,brown corundum etc, is made from Calcined Bauxite. It is a hard and tough material, used in grinding wheels manufacturing (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing media.
Zhengzhou haixu abrasives co.,ltd,founded in 1999,has been manufacturing and exporting abrasives for more than 20 years from China.Our factory mainly produce brown fused alumina,white fused alumina and silicon carbide.
About brown fused alumina,we mainly produce macrogrit and micropowder.
For macrogrit,no matter produced under which standard,they are PSD is almost same,but for micropowder,different standard,has big difference.
Today just conclulate the D50 of brown fused alumina micropowder which are produced under different standard 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 | ||
| JIS#1000 | 11.5±1.0 | P1200 | 15.3±1.0 | ||||
| JIS#1200 | 9.5±0.8 | P1500 | 12.6±1.0 | ||||
| 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 |