Brown fused alumina for refractory material

Brown Fused Alumina, it is a product manufactured by gradual melting reduction of calcined bauxite in an electric arc furnace at high temperature (approximately 2000 degrees Celsius). Its chemical composition consists mainly of Al2O3 (94,5-97%) and vestigial amounts of TiO2, SiO2, Fe2O3, CaO and MgO.
Brown Fused Alumina is characterized by good toughness, high mechanical resistance and hardness (9 in Mohs scale). The micro hardness of the material reaches about 1900kG/mm2. Specific gravity (density) equals 3,90+/-0,05 g/cm3. Bulk density depending on size equals 1,68-1,95 g/cm3. It has relatively high thermal conductivity and low thermal expansion. As regards electricity it is an insulator.
▼Usage 

grinding media, sandblasting media; surface cleaning, grit blasting, lapping, polishing, grinding, sandblasting, etching, wet and dry blasting, mineral skin abrasion materials, metal finishing & surface preparation, refractory material, ceramics, coatings ,bonded & coated abrasives

Chemical Analysis

Purpose

Specifications

Chemical Composition (%)

Magnetic

Material

Content (%)

For Abrasives

Al2O3

Fe2O3

SiO2

TiO2

    F

6-80

≥95.0

≤0.30

≤1.50

≤3.0

≤0.05

90-150

≥94.5

≤0.30

≤1.50

≤3.0

≤0.03

180-220

≥94.0

≤0.30

≤1.50

≤3.5

≤0.02

240-1200

≥93.5

≤0.50

≤1.80

≤4.0

Refractory

Section Sand

0-1mm

1-3mm

3-5mm

5-8mm

8-10mm

10-16mm

≥95.0

≤0.30

≤1.50

≤3.0

Fine Powder

-180mesh

-220mesh

-240mesh

-320mesh

≥93.5

≤0.50

≤1.50

≤3.5

Physical properties

Color

Brown

Crystal shape

α-Al2O3 Trigonal

Hardness(mohs)

≥9.0

Micro Hardness

HV1800-2200

Melting Point ()

2050

True Density (g/cm3)

≥3. 90

Bulk Density(g/cm3)

1.68-1.95

Linear Expansion Coefficient(0—1600)

 7.6

All data based upon RunLong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.

High temperature brown fused alumina for refractory material with unit price[USD580~700/Ton FOB Tianjin] from China manufacturer.


 


Shipping Package

pvc bags

paper bags

jumbo bags

jumbo bags

pvc bag+pallet

paper bag+pallet

25kg net

25kg net

1000kg

1500kg

1000kg

1000kg

Other package also could be supplied as required.

▼Our Advantages:
a. Assure the high quality of products.
b. Equipped full line of test method. The laboratory is certified by government Inspection Bureau, that assures its quality stability.
c. All products will be supplied according to customers different requirements.
d. One-stop service
e. A grade products with high purity
f. Professional abrasives manufacturer since 1999
g. Production capacity:1000-1500 metric ton/month
▼Payment:
1).Our first choice is T/T. For a large order 40% T/T in advance is earnest money, the rest to be paid in 7-10 days after getting B/L copy. For a small order,100% T/T in advance.
2).Second choice is L/C. We can accept irrevocable L/C at sight. For a large order 40%T/T, 60%L/C. We couldn’t accept L/C for a small order. The best way of payment we advise is T/T, because L/C is very complicated and a lot of extra fee to give the bank.
3).The others: West Union, Paypal.
▼After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
▼Factory Visit:
1).Welcome any customer to visit our factory directly
2).If customer have any scheduling in China, please let us know. We would like to help you book the hotel and pick up you from airport or railway station.

Brown Fused Alumina
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