Brown Aluminium Oxide P280-P800 grit For Sandpaper Description:
Brown Fused Alumina 280mesh 320mesh 360mesh 400 mesh is an efficient grinding artificial abrasive powder. It is made from calcined bauxite with a fusing process. The Mohs hardness of brown fused alumina is 9.0, the Rockwell hardness is 75HRC, and the Vickers hardness is 200-2200kg/mm2. The hardness is slightly lower than that of white aluminum oxide. Brown fused aluminum oxide powder is a popular abrasive media in the fields such as abrasive tools, sandblasting media, anti-slip and refractory material.
Brown Aluminium Oxide P280-P800 grit For Sandpaper Features:
High abrasive with Mohs scale 9.0.
Higher toughness than white aluminum oxide. So it’s more suitable for steel and Iron.
Narrow particle size range. So it works well for grinding and polishing.
Aluminum oxide purity 92-93% with low powder and impurity.
Brown Aluminium Oxide P280-P800 grit For Sandpaper Application:
Polishing, grinding and micro blasting.
Raw material for buffing & polishing compounds, abrasive wax, polishing liquid, etc.
Wear resistance and anti-slip applications
Making abrasive polishing stone, polishing pad, grinding sponge, etc.
Brown Aluminium Oxide P280-P800 grit For Sandpaper Chemical composition
|
|
Guarantee Value
|
Typical Value(P320)
|
|
AL2O3
|
≥93.5%
|
93.88%
|
|
Fe2O3
|
≤0.5%
|
0.40%
|
|
Si2O
|
≤1.5%
|
1.34%
|
|
Ti2O
|
≤4.0%
|
3.55%
|
|
CaO
|
≤0.5%
|
0.27%
|
|
MgO
|
≤0.5%
|
0.21%
|
|
K2O
|
≤0.1%
|
0.05%
|
|
Na2O
|
≤0.1%
|
0.03%
|
Brown Aluminium Oxide P280-P800 grit For Sandpaper Physical properties
|
Basic minerals:
|
Al2O3
|
|
Hardness:
|
Mohs 9.0
|
|
Melting Point:
|
2200 ℃
|
|
Maximum service temperature
|
1850℃
|
|
Specific Gravity:
|
3.95g/cm3
|
|
True Density:
|
≥3.6g/cm3
|
|
Bulk density(LPD):
|
1.53-1.99 g/cm3
|
|
Color:
|
Brown
|
|
Particle shape:
|
Trigonal
|
Available sizes:
|
JIS Grit Size
|
D0(um)
|
D3 (um)
|
Ds50(um)
|
Ds94 (um)
|
|
JIS#240
|
≤ 127
|
≤ 90
|
60.0±4.0
|
≥ 48
|
|
JIS#280
|
≤ 112
|
≤ 79
|
52.0±3.0
|
≥ 41
|
|
JIS#320
|
≤ 98
|
≤ 71
|
46.0±2.5
|
≥ 35
|
|
JIS#360
|
≤ 86
|
≤ 64
|
40.0±2.0
|
≥ 30
|
|
JIS #400
|
≤ 75
|
≤ 56
|
34.0±2.0
|
≥ 25
|
|
JIS #500
|
≤ 65
|
≤ 48
|
28.0±2.0
|
≥ 20
|
|
JIS #600
|
≤ 57
|
≤ 43
|
24.0±1.5
|
≥ 17
|
|
JIS #700
|
≤ 50
|
≤ 39
|
21.0±1.3
|
≥ 14
|
|
JIS #800
|
≤ 46
|
≤ 35
|
18.0±1.0
|
≥ 12
|
|
JIS #1000
|
≤ 42
|
≤ 32
|
15.5±1.0
|
≥ 9.5
|
|
JIS #1200
|
≤ 39
|
≤ 28
|
13.0±1.0
|
≥ 7.8
|
|
JIS#1500
|
≤ 36
|
≤ 24
|
10.5±1.0
|
≥ 6
|
|
F Grit 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
|
|
P Grit Size
|
D0（um）
|
D3(um)
|
D50(um)
|
D95(um)
|
|
P240
|
≤ 110
|
≤ 81.7
|
58.5±2.0
|
≥ 44.5
|
|
P280
|
≤ 101
|
≤ 74.0
|
52.2±2.0
|
≥ 39.2
|
|
P320
|
≤ 94
|
≤ 66.8
|
46.2±1.5
|
≥ 34.2
|
|
P360
|
≤ 87
|
≤ 60.3
|
40.5±1.5
|
≥ 29.6
|
|
P400
|
≤ 81
|
≤ 53.9
|
35.0±1.5
|
≥ 25.2
|
|
P500
|
≤ 77
|
≤ 48.3
|
30.2±1.5
|
≥ 21.5
|
|
P600
|
≤ 72
|
≤ 43.0
|
25.8±1.0
|
≥ 18.0
|
|
P800
|
≤ 67
|
≤ 38.1
|
21.8±1.0
|
≥ 15.1
|
|
P1000
|
≤ 63
|
≤ 33.7
|
18.3±1.0
|
≥ 12.4
|
|
P1200
|
≤ 58
|
≤ 29.7
|
15.3±1.0
|
≥ 10.2
|
|
P1500
|
≤ 53
|
≤ 22.4
|
12.6±1.0
|
≥ 8.3
|
|
P2000
|
≤ 45
|
≤ 19.3
|
10.3±0.8
|
≥ 6.7
|
Productions Process:
Package:
Contact:
Ms. Chen
Email:panchenhxml@gmail.com
WhatsApp/Wechat: 0086 13526538098
Website: www.hngangyu.com