——PRODUCTS CENTER——


   Product Description


Brown Fused Alumina (BFA) is an artificial corundum produced by smelting high-quality bauxite in an electric arc furnace at high temperature, followed by cooling, crushing, magnetic separation and sieving. With alumina (Al₂O₃) as the main component, it features high hardness, good toughness, and excellent wear resistance. Brown Fused Alumina is one of the most widely used abrasives and refractory raw materials in the industrial field.


   Core Features


  • High hardness and toughness: Mohs hardness 9, suitable for grinding and blasting of hard metals and alloys.


  • Excellent wear resistance: Long service life in abrasive and blasting applications.


  • Thermal stability: Strong resistance to high temperatures, widely used in refractory products.


  • Versatile particle size distribution: Available in a wide range of grit and powder sizes to meet customer requirements.


   Size Specifications


Refractory sandsegment sand"FEPA"0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-15mm...
fine powder"FEPA"-100mesh -200mesh -325mesh...
Abrasive sandgrit sand"FEPA"F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
micropowder"P"P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500
"FEPA"F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 F3000
"JIS"240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000#


   Physical Indicators


ColorBrown
Basic Mineralα-AI2O3
Crystal shapeTrigonal crystal system
Hexagonal crystal shape
Hardness(mohs)≥9.0
Micro hardnessHV1800-2200
Melting point(℃)2250
Max temperature(℃)1900
True density(g/cm3)3.9
Bulk density(g/cm3)1.65-1.95g/cm3


   Chemical Indicators


Refractory sand
Grit SizeAI2O3SiO2Fe2O3TiO2
0-1mm>95.2%<1%<0.3%<3%
1-3mm>95.2%<1%<0.3%<3%
3-5mm>95.2%<1%<0.3%<3%
200mesh>95.0%<1%<0.3%<3%
325mesh>95.0%<1%<0.3%<3%

Abrasives sand
Grit SizeAI2O3SiO2Fe2O3TiO2
F8-F220>95.2%<1%<0.3%<3%
F230-F3000>95.%<1.3%<0.3%<3.5%


   Factory Display


Shandong Zhongji Metal Products Co., Ltd. is a benchmark enterprise in the field of abrasives and refractory materials, focusing on the research and development of high-end abrasive products such as white corundum, brown corundum, black corundum and glass beads. As an international comprehensive enterprise integrating industry and trade, we provide global customers with full-process solutions from raw material selection, customized production to technical services through the advantages of vertically integrated industrial chain, and always practice the business philosophy of driving quality with innovation and creating value with service.


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   Product Applications


1.Grinding & Polishing:Brown Fused Alumina is widely used in bonded abrasives (grinding wheels) and coated abrasives (sandpaper, sanding belts). Its high hardness and toughness ensure efficient grinding of steel, stainless steel, and other hard metals.

2.Sandblasting & Surface Cleaning:Ideal for surface treatment, rust removal, and oxide scale cleaning of steel structures, castings, and pipelines. Provides uniform surface roughness for better coating adhesion.

3.Refractory Materials:BFA is a key raw material for manufacturing refractory bricks, castables, and furnace linings. Its high melting point and thermal stability make it suitable for high-temperature industrial furnaces.

4.Anti-slip Surfaces:Applied in highways, airport runways, and flooring to improve anti-slip performance and durability.

5.Precision Casting:Used as a precision casting sand and coating material for investment casting, ensuring smooth surfaces and high-quality castings.


   FAQS


Q: Does it support customized production?

A: Yes, particle size, chemical composition, and packaging can be adjusted according to customer requirements.


Q: How to pack and ship?

A: Standard packaging is 25 kg woven bag or 1 ton jumbo bag; support sea/air transport and trade terms like DDP, FOB, CIF.


Q: Can you provide samples?

A: Yes, free samples (1–2 kg) can be provided within 3 working days.


Q: Do you guarantee safe delivery of products?

A: Yes, we use high-quality export packaging and provide special packaging for non-standard requirements. Additional charges may apply for special packing needs.


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