​​​​​​​​南星化工

S.S CHEM

White Fused Alumina 白刚玉

White Fused Alumina 白刚玉

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White Fused Alumina

1. Basic indicators                                                                                                                                                            

Molecular Formula

Al2O3

Appearance

White powder

CAS No.

1344-28-1

Hs Code

281820

2. Technical specifications                                                                                 

Chemical Composition

Physical Properties

Al2O3

98.5-99.7%

Mohs Hardness

9.0

Fe2O3

0.04-0.10%

Melting Point

2250℃

Na2O

0.25-0.35%

Bulk Density

1.75-1.95g/m3

SiO2

0.20-0.30%

Specific Gravity

3.95-3.97g/m3

Available Sizes

Fraction: 

0-1mm 1-3mm 3-5mm 5-8mm

Fine:

100mesh 200mesh 300mesh 325mesh

Grains:

#8 #10 #12 #14 #16 #20 #22 #24 #30 #36 #40 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220

Micro powder:

(JIS) #240 #280 #320 #360 #400 #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 #10000

(FEPA) F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500

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.


白刚玉

白刚玉是以优质铝氧化粉为原料,经电熔提炼结晶而成, 纯度高、自锐性好、耐酸碱腐蚀、耐高温、热态性能稳定它硬度略高于棕刚玉,韧性稍低,纯度高、自锐性好、磨削能力强、发热量小、效率高、耐酸碱腐蚀、耐高温热稳定性好。用其制成磨具,适用于磨削高碳钢、高速钢及不锈钢等细粒度磨料还可以用于精密铸造和高级耐火材料。

产品规格:

项目

指标

Al2O3

≥98.5%

Fe2O3

≤0.08%

SiO2

≤0.30%

Cao

≤0.03%

MgO

≤0.02%

K2O

≤0.02%

Na2O

≤0.35%

堆积密度

1.75-1.95g/cm3

颗粒密度

≥3.90g/cm3

莫氏硬度

≥9

显微硬度

21600-22600kg/mm3

用途:

砂轮,炼钢,高级耐火材料等。它的特点是切削力较强,化学稳定性好,具有很好的绝缘性磨具适用于磨削高碳钢、高速钢和淬火钢等硬度较硬、抗张强度较大的材料的磨削等。还可作为研磨抛光材料其;精密铸造、喷涂材料,化工触媒载体,特种陶瓷