Brown Fused Alumina Blast Media (Aluminium Oxide / Corundum)

Overview Key Features Typical Applications Benefits Technical Information Grades & Supply Safety & Handling Durable Aluminium Oxide for Heavy Blasting Brown fused alumina is a high-performance aluminium oxide blasting grit engineered for strength, recyclability, and abrasive life. Its tough grain structure resists breakdown, making it ideal for high-volume and large-scale blasting operations. Suitable for ferrous and non-ferrous materials in wet or dry blasting systems. Brown fused alumina is selected where toughness, durability, and abrasive reuse are more important than absolute purity. For iron-free blasting or contamination-sensitive applications, white fused alumina is recommended. Key Features Tough, blocky angular aluminium oxide grains offer stable cutting performance High hardness with excellent fracture resistance Long service life and high recyclability make for cost-effective blasting cycles Suitable for ferrous and non-ferrous substrates Compatible with wet and dry blasting systems Widely approved across heavy industries Typical Applications Rust and mill scale removal Weld cleaning and surface conditioning Steel preparation prior to coating or painting General industrial shot blasting Aerospace, defence, and nuclear surface preparation Its tough grain structure allows repeated reuse, making it particularly effective in continuous or high-volume blasting operations. Why Choose Brown vs White or Pink Alumina Lower operating cost over time Effective rust, scale, and coating removal Reliable results in continuous use environments Brown fused alumina prioritises abrasive toughness and reuse life over ultra-high purity. It is the preferred choice where cost per cycle and durability matter more than iron-free purity (white alumina) or balanced performance (pink alumina). Technical Information – Brown Fused Alumina Technical Properties Property Typical Value Chemical composition Aluminium Oxide (Al₂O₃) Hardness Approx. 9.0 Mohs Specific gravity ~ 3.9-4.1 g/cm³ Bulk density ~ 1.5-2.1 g/cm³ Melting point ~ 2050°C Grain shape Angular / Blocky Relative toughness Very high Contamination risk Low (contains trace impurities) Suitable systems Wet & dry blast cabinets Compatible with pressure, suction, and cabinet blasting systems. Chemical Analysis Component Typical % Al₂O₃ 95.65% TiO₂ 2.42% Fe₂O₃ 0.12% SiO₂ 0.92% CaO 0.35% Approvals & Standards Supplied to recognised aerospace, defence, and nuclear sector requirements (where applicable) FEPA F & FEPA P grit standards Suitable for industrial blasting operations requiring consistent particle sizing Certificates of conformity available on request. Grades & Supply FEPA macro and micro grades Supplied in 25 kg bags UK stock, 3–5 working day delivery FEPA grit sizes define the particle size distribution of fused alumina abrasives. Lower FEPA numbers correspond to coarser grains and more aggressive cutting, while higher FEPA numbers produce finer surface finishes and reduced material removal. FEPA Grit Sizes & Approximate Particle Diameter FEPA Grade Approx. Particle Size (µm) F 008 2000 – 2800 F 010 1700 – 2360 F 012 1400 – 2000 F 014 1180 – 1700 F 016 1000 – 1400 F 020 850 – 1180 F 022 710 – 1000 F 024 600 – 850 F 030 500 – 710 F 036 425 – 600 F 040 355 – 500 F 046 300 – 425 F 054 250 – 355 F 060 212 – 300 F 070 180 – 250 F 080 150 – 212 F 090 125 – 180 F 100 106 – 150 F 120 90 – 125 F 150 63 – 106 F 180 53 – 90 F 220 45 – 75 Please enquire for micro grade options. Coarser FEPA grades are typically used for heavy rust removal and profiling, while finer grades are selected where controlled surface finish or reduced material removal is required. Unsure which grit size is right for your application? – Contact usOur technical team can advise on media selection based on substrate, finish, and blasting system. Safety & Handling Aluminium oxide is non-toxic, non-hazardous, and free from silica. No special disposal precautions are required for the material as supplied; users should consider contamination introduced during their own blasting processes.