​​​​​​​​南星化工

S.S CHEM

Brown Fused Alumina 棕刚玉

Brown Fused Alumina 棕刚玉

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Brown Fused Alumina

Brown Fused Alumina (BFA) is produced by a reduction fusion of high quality bauxites in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grain for applications such as grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing, and grinding. Its thermal properties make it an excellent raw material for refractory applications.

1. Basic indicators                                                                                                                                                            

Molecular Formula

Al2O3

Appearance

Brown powder

CAS No.

1344-28-1

Hs Code

281820

2. Technical specifications                                                                                 

Brand

Chemical Composition (%)

Physical Properties

JZBT

Al2O3

Fe2O3

SiO2

TiO2

Mohs Hardness

Bulk Density

Specific Gravity

BFA-1

92.5-96

0.2-0.5

1.0-2.0

1.5-4.0

9.0

1.53-1.99g/cm3

3.90g/cm3

BFA-2

90-92

1.0-2.0

2.0-4.0

2.0-5.0

BFA-3

70-80

3.0-5.0

5.0-6.0

3.0-6.0

BFA-4

50-65

12.0-20.0

15.0-25.0

4.5-6.5

Available Sizes:

Fraction

0-1mm   1-3mm 3-5mm 5-8mm

Fine

100#-0   200#-0 320#-0

Grains

FEAP

F12   F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220

JIS

JIS#12 #14 #16 #20   #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220

Micro     powder

FEPA

F230 F240 F280   F320 F360 F400 F500 F600 F800

JIS

JIS#240 #280 #320   #360 #400 #500 #600 #800 #1000 #1200 #1500 #2000

M

4# 3# M28 M20   M14 M10 M7

3. Application                                                                                            

1). Refractory, casting, foundry.

2). Bonded abrasives and Coated abrasives.

3). Surface treatment/finishing.

4). Lapping, polishing, decorative non-skid tile, and pressure blasting.

5). Ceramic Tiles special ceramics.

6). Fluidized Bed Furnaces and Skin/Dental Care.

7). Oilstone/polishing pad, grinding wheels etc.

8). Anti-friction material, anti-resisting grounds/paper/paiting.

9). Used for making polishing paste/solution etc

4. Packing and storage                                                                                       

Packing: Double coated plastic woven / paper bag, net weight 25kg.

Big bag packing, net weight 1000kg / 1250kg per clients’ request.

Storage: Dry, ventilated, moisture proof.


棕刚玉
棕刚玉是以优质磨料级矾土为原料,配以辅料,于电弧炉中经2250℃以上高温精炼制成。其自锐性好、磨削力强 。棕刚玉主要用途有:可制成陶瓷砂轮,树脂砂轮,磨头,磨块、砂纸,砂带,砂布及抛光蜡,研磨剂,研磨膏,涂料等。

用途

规格

化学指标%

磁性物%

Al2O3

Fe2O3

SiO2

TiO2

磨料

F

4#—80#

≥95

≤0.3

≤1.5

≤3.0

≤0.05

90#—150#

≥94

≤0.03

180#—240#

≥93

≤0.3

≤1.5

≤3.5

≤0.02

P

8#—80#

≥95.0

≤0.3

≤1.5

≤3.0

≤0.05

100#—150#

≥94.0

≤0.03

180#—220#

≥93.0

≤0.3

≤1.5

≤3.5

≤0.02

W

1#-63#

≥92.5

≤0.5

≤1.8

≤4.0