Brown Fused Aluminum Oxide

Brown Fused Aluminum Oxide

Brown Fused Alumina is a widely used industrial abrasive, primarily utilized in applications such as grinding wheels, cutting discs, sandblasting, and refractory materials. Hengtium offers not only standard brown fused alumina but also products tailored to your specific requirements regarding grit size, packaging, and application.
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Description

Why Choose Our Brown Fused Aluminum Oxide

High Hardness: Suitable for Various Grinding Applications

Brown Fused Aluminum Oxide (BFA) has a hardness of approximately 8.5–9.0 on the Mohs scale, offering excellent hardness, toughness, and wear resistance.
It is capable of withstanding continuous grinding, cutting, and sandblasting operations.

 

Consistent Particle Size: Minimizing Production Variability

Hengtium strictly controls particle size during the production and screening processes, ensuring consistent product performance.
If you already use specific particle size specifications, simply send them to us, and we can match our products to your actual application requirements.

 

High-Temperature Resistance: Suitable for Refractory Applications

With a melting point exceeding 2,000°C, BFA offers excellent high-temperature resistance.

Beyond its use as an abrasive, it is also suitable for the production of refractory materials.
BFA provides stable base material properties.

 

Acid and Alkali Resistance: A Wide Range of Applications

BFA exhibits excellent resistance to acids and alkalis; it is suitable not only for general grinding but also for industrial applications requiring high wear resistance, high-temperature stability, and chemical stability.

 

 

Product Applications

Abrasive Tool Manufacturing

Brown Fused Aluminum Oxide (BFA) boasts a Mohs hardness of up to 9.0, along with excellent toughness and wear resistance, enabling it to withstand continuous grinding and cutting operations.
It is commonly used in the production of resin-bonded and vitrified grinding wheels, resin cutting discs, abrasive belts, sandpaper, and other coated abrasives.
Hengtium offers a wide range of grit sizes (from 12# to 240#), allowing for selection based on specific abrasive tool formulations and processing requirements.

01

Metal Surface Treatment: Sandblasting, Rust Removal, and Coating Removal

With a Mohs hardness of 8.5–9.0 and excellent particle wear resistance, BFA is ideal for removing rust, mill scale, old paint, surface dirt, and other deposits from metal surfaces.
It is frequently used for surface pre-treatment of steel structures, mechanical components, castings, and machined metal parts.

02

Refractory Materials: High-Temperature Applications

BFA is a key raw material in the refractory industry.
It features an Al₂O₃ content exceeding 95%, high hardness, high density, and superior high-temperature resistance, with a melting point of approximately 1850–2000°C.
It is commonly used to manufacture refractory products such as refractory bricks, castables, ramming masses, furnace lining materials, ladle refractories, nozzles, and slide plates.

03

Precision Casting: Applications Requiring Surface Treatment and High-Temperature Resistance

It is suitable for precision casting processes that require grinding, sandblasting, or surface finishing.
It is used to clean oxides, residues, and other deposits from casting surfaces, leveraging its high hardness to enhance surface treatment efficiency.

04

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Product Parameter (Specification)

 

Al₂O₃

Fe₂O₃

SiO₂

≥95.00%

≤0.20%

≤1.00%

TiO₂

Na₂O

Carbon

2.80-3.00%

≤0.50%

≤0.04%

True Density

Melting Point

HM

3.85-3.90g/㎝³

1850-2000℃

8.5-9.0

 

                                         Particle size distribution diagram

Product name

Brown fused alumina

The product complies with national standards.:GBT2478-2008

Grain distribution

The coarsest

grains

The coarser

grains

Basic grains

Mixed grains

Finer grains

12#

0

19

18

73

0.6

14#

0

17

49

71

0.8

16#

0

18

47

74

0.5

20#

0

20

53

71

1

24#

0

18

49

70

1

30#

0

16

48

71

1.8

36#

0

16

47

75

1.9

46#

0

24

43

70

2

60#

0

18

53

73

2

70#

0

22

47

70

2.2

80#

0

11

57

76

2.6

90#

0

15

46

70

2.3

100#

0

20

41

69

1.6

120#

0

10

48

75

2.5

150#

0

13

42

69

2.1

180 #

0

12

50

72

3

220#

0

14

43

70

 

240#

0

4

38

50

 

 

 

Focus On Products

 

Our Brown Fused Aluminum Oxide boasts high hardness, strong corrosion resistance, and excellent cutting performance. Therefore, it is considered a leader among key raw materials for abrasives and grinding tools. Higher product purity translates to better performance. Furthermore, our products can achieve a hardness (HM) of up to 9, and our raw materials undergo a long smelting process, being fired at 2250 degrees Celsius. The products contain over 95% aluminum, 0.1%-0.3% iron, and 2.8-3% titanium, resulting in not only a superior grinding wheel color but also high sandblasting hardness, helping companies reduce costs.

 

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Why choose Zibo Hengtium

Over 30 Years of Industry Experience

Since 1989, Hengtium has focused on the R&D, production, sales, and quality inspection of abrasives and related non-metallic mineral products.

01

Consistent Quality Control

We maintain strict control over physical and chemical properties throughout the entire process-from raw material selection to production, particle size control, and final product inspection.

02

Customization Support

If you have specific requirements regarding Brown Fused Aluminum Oxide particle size, packaging, or technical specifications, simply provide your current standards, and we will match them to your needs.

03

Export Experience

Our products are exported to markets including Japan, Thailand, South Korea, Southeast Asia, the USA, India, Russia, the UK, and Europe.
We provide comprehensive communication and technical support at every stage, from initial inquiry and product confirmation to final order delivery.

04

Flexible Packaging

We offer standard packaging options such as ton bags and kraft paper bags, as well as customized packaging.
Please let us know in advance if you have specific packaging requirements.

05

FAQ

Q: What is the Al₂O₃ content of brown fused alumina?

A: Hengtium's brown fused alumina has an Al₂O₃ content of ≥95%. Chemical composition requirements may vary depending on the grade and intended use; for bulk orders, specific chemical composition and test data can be confirmed based on customer requirements.

Q: What is the hardness of brown fused alumina?

A: The Mohs hardness of brown fused alumina is approximately 8.5–9.0, reaching up to 9.0. Its high hardness makes it suitable for applications requiring excellent wear resistance, such as metal grinding, cutting, sandblasting, and the production of refractory materials.

Q: What is the difference between brown fused alumina and white fused alumina?

A: The main differences lie in purity, chemical composition, toughness, and typical applications. Brown Fused Alumina typically has an Al₂O₃ content of over 95% and offers good hardness and toughness, making it suitable for heavy-duty grinding, cutting, sandblasting, and refractory applications. White Fused Alumina boasts higher purity and is commonly used in grinding and surface treatment scenarios that demand strict impurity control and high surface cleanliness.

Q: Can Brown Fused Alumina be customized to specific requirements?

A: Yes. In addition to standard grit sizes, we can discuss grit size, chemical composition, packaging, and other technical specifications based on your specific application needs. If you are switching suppliers, you can also send us the specifications, test reports, or sample parameters of the product you currently use, and we can match them with our existing products.

Q: Can samples be provided before bulk purchasing?

A: Yes. For new customers or those switching suppliers, we recommend testing samples before committing to a bulk order. This is particularly important for applications like grinding wheels, cutting discs, and sandblasting; it is best to test the material directly on your own production line to compare grinding efficiency, abrasive consumption, product lifespan, and the final surface finish.

Q: How should I choose the right grit size for Brown Fused Alumina?

A: The choice shouldn't simply be based on "coarser is better" or "finer is better." Coarser grits are better suited for heavy-duty grinding and rapid material removal, while finer grits are ideal for precision machining and applications requiring a high-quality surface finish. If you are unsure which specification to choose, please provide us with details regarding the material being processed, the specific application, your current grit size, the equipment used, and your monthly purchase volume; we can then help you select the most suitable product based on your actual usage conditions.

 

If you are interested in our Brown Fused Aluminum Oxide, please let us know the intended application, required grit size, and estimated purchase volume; we will then provide the suitable product and a quotation based on your needs.

 

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