Brown Fused Alumina

Brown Fused Alumina is a high-performance synthetic corundum produced through the fusion of bauxite in electric arc furnaces. This versatile material is widely used in abrasive and refractory applications due to its exceptional hardness and durability. As a key player in the global foreign trade market, it caters to B2B buyers seeking reliable industrial solutions.

With origins in high-quality raw materials like bauxite and coke, Brown Fused Alumina offers superior performance in demanding environments. Its production process ensures consistency, making it a top choice for manufacturers worldwide. This article explores its features, specifications, benefits, applications, and advantages to help B2B buyers make informed decisions.

Brown Fused Alumina boasts several standout features that set it apart in the abrasives industry. It has a high alumina content, typically ranging from 95% to 97%, which contributes to its excellent wear resistance.

One of its primary features is the angular grain shape, which enhances cutting efficiency during grinding and polishing processes. Additionally, it exhibits strong thermal stability, allowing it to withstand temperatures up to 1900°C without significant degradation.

The material's microhardness, measured at around 2000-2200 HV, makes it ideal for heavy-duty applications. It is also non-reactive with most acids and alkalis, ensuring longevity in corrosive environments.

• High purity levels, minimizing impurities for cleaner operations.
• Excellent toughness, reducing fracture during high-impact uses.
• Uniform particle size distribution for precise and consistent results.
• Low magnetic content, which is crucial for applications in electronics and precision manufacturing.
• Versatile grain sizes, available from F12 to F220, to suit various industrial needs.

Compared to alternatives like White Fused Alumina or Silicon Carbide, Brown Fused Alumina offers distinct advantages that make it preferable for many B2B scenarios. It provides better toughness and impact resistance, which is crucial for heavy-duty grinding tasks where fragility could lead to failures.

Its lower cost per unit makes it more economical without compromising performance, appealing to budget-conscious buyers in international trade. Unlike synthetic diamonds, which are expensive and limited in availability, Brown Fused Alumina is readily produced and sourced globally.

Another key advantage is its versatility; it performs well in both wet and dry conditions, whereas some alternatives are restricted to specific environments. For instance, it outperforms Garnet in terms of reusability, allowing multiple cycles of use and reducing waste.

• Higher fracture toughness than White Fused Alumina for demanding applications.
• Greater thermal shock resistance compared to Zirconia Alumina.
• Cost-effectiveness over premium abrasives like Cubic Boron Nitride.
• Superior edge retention, leading to longer service life.
• Environmentally sustainable production process versus some chemical-based alternatives.

These factors position Brown Fused Alumina as a competitive choice for global B2B buyers focused on efficiency and reliability.

Brown Fused Alumina comes with detailed specifications to meet international standards such as ISO and FEPA. Its chemical composition includes approximately 95-97% Al2O3, 1-1.5% SiO2, and trace elements like TiO2 and Fe2O3.

Physical properties include a bulk density of 1.75-1.95 g/cm³ and a Mohs hardness of 9, making it one of the toughest abrasives available. It is offered in various grit sizes, from coarse (e.g., 0-1mm) to fine (e.g., 320 mesh), depending on the application requirements.

For B2B buyers, customization options are available, including specific grain shapes and sizes. The product is typically packaged in 25kg bags or 1-ton jumbo bags to facilitate easy shipping and handling in global trade.

• Al2O3 content: 95-97%
• SiO2 content: Up to 1.5%
• TiO2 content: 1.5-3.8%
• Fe2O3 content: Less than 0.3%
• Grain sizes: F12, F14, F16, F24, F30, F36, F46, F54, F60, F80, F100, F120, F150, F180, F220

The benefits of Brown Fused Alumina extend beyond its basic properties, offering cost-effective solutions for industrial processes. It provides superior grinding efficiency, which reduces processing time and lowers overall production costs.

Its high thermal conductivity helps in heat dissipation during operations, preventing overheating and extending the life of machinery. For B2B buyers, this translates to fewer maintenance issues and improved operational uptime.

Environmentally, Brown Fused Alumina is recyclable and generates minimal waste, aligning with sustainable manufacturing practices. It also enhances product quality by delivering a smoother finish on surfaces, which is essential for industries like automotive and aerospace.

• Cost savings through extended tool life and reduced consumption rates.
• Improved safety due to low dust emission during use.
• Enhanced productivity with faster material removal rates.
• Versatility in applications, from blasting to refractory linings.
• Support for eco-friendly initiatives with reusable properties.

What is Brown Fused Alumina and how is it made?

It is a tough abrasive material produced by fusing bauxite in electric arc furnaces at high temperatures, resulting in a product with high alumina content and excellent hardness.

What are the main applications of Brown Fused Alumina?

Its primary uses include abrasives for grinding wheels, refractory materials for furnaces, and surface preparation in industries like metalworking and ceramics.

How does Brown Fused Alumina compare to White Fused Alumina?

While both are alumina-based, Brown Fused Alumina is tougher and more cost-effective for heavy grinding, whereas White Fused Alumina is purer and better for precision finishing.

Is Brown Fused Alumina safe for environmental use?

Yes, it is non-toxic and recyclable, making it an eco-friendly option that complies with international environmental regulations.

What grain sizes are available for Brown Fused Alumina?

It is offered in a wide range, from coarse sizes like F12 to fine sizes like F220, allowing customization based on specific B2B requirements.

How should Brown Fused Alumina be stored to maintain quality?

Store it in a dry, cool environment away from moisture to prevent clumping and ensure optimal performance during use.

Can Brown Fused Alumina be used in food processing?

It is not typically recommended for direct food contact due to potential impurities, but it can be used in indirect applications like equipment cleaning.

What certifications does Brown Fused Alumina usually have?

Products often come with ISO 9001 and REACH certifications, ensuring quality and safety for global trade.

How does pricing of Brown Fused Alumina vary?

Pricing depends on factors like grain size, purity level, and order volume, with bulk purchases offering better rates for B2B buyers.

Where can I source Brown Fused Alumina globally?

It is available from manufacturers in China, India, and the USA, with reliable suppliers offering worldwide shipping for B2B clients.