Abrasive grit size distribution for sandblasting.
Grit Size |
Thickest | Macrograin | Basic Grain | Mixed | Micrograin | |||
Sieve No. | Sieve No. | Weight(%) | Sieve No. | Weight(%) | Sieve No. | Weight(%) | Sieve No. | |
(100% through) | (not through) | No more than | (not through) | No less than |
(not through) | No less than |
(through with weight no more than 5%) |
|
16 | 8 | 14 | 25 | 16 | 35 | 16 18 | 70 | 25 |
20 | 10 | 16 | 25 | 18 | 35 | 18 20 | 70 | 30 |
24 | 14 | 18 | 25 | 20 | 35 | 20 25 | 60 | 40 |
30 | 16 | 20 | 30 | 30 | 45 | 30 35 | 60 | 45 |
36 | 18 | 25 | 15 | 35 | 50 | 35 40 | 80 | 50 |
46 | 25 | 40 | 30 | 45 | 30 | 45 50 | 55 | 70 |
54 | 30 | 45 | 35 | 50 | 25 | 50 60 | 60 | 80 |
60 | 35 | 50 | 35 | 60 | 35 | 60 70 | 60 | 100 |
70 | 40 | 60 | 25 | 70 | 35 | 70 80 | 65 | 120 |
80 | 45 | 70 | 35 | 80 | 30 | 80 100 | 60 | 140 |
90 | 50 | 80 | 25 | 100 | 35 | 100 120 | 60 | 170 |
100 | 60 | 100 | 25 | 120 | 30 | 120 140 | 55 | 230 |
120 | 70 | 120 | 25 | 140 | 20 | 140 170 | 50 | 270 |
150 | 80 | 140 | 25 | 170 200 | 30 | 170 200 230 | 60 | 325 |
180 | 80 | 170 | 20 | 200 230 | 30 | 200 230 270 | 60 | - |
220 | 100 | 200 | 15 | 230 270 | 30 | 230 270 325 | 50 | - |