Copper Slag


Copper Slag

Salient Features & Application :

  • Abrasive for Blast Cleaning & Finishing.
  • Copper Slag abrasive is suitable for :
    • Blast Cleaning of mile steel and stone/ concrete surfaces,
    • Removal of mill scale, rust, old paint, dirt etc.

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Chemical Composition

Component Normal Composition
(WT %) Range
(WT %) Range
Silicon Dioxide [SiO2] 25-35% 80 mg/m3 ; %SiO2
Free Silica <0.5% 10 mg/m3 [Respirable Dust]; %SiO2+2
Cristobalite ND 30 mg/m3 [Quartz Total Dust]; %SiO2+2
Tridymite ND 80 mg/m3 [Respirable Dust]; %SiO2
Aluminium Oxide [Al2O3] 2-9%
Calcium Oxide [CaO] 2-9%
Magnesium Oxide [MgO] 1-5%
Iron Oxide [FeO] 45-55%
Potassium Oxide [K2O] 1-5%
Titanium Dioxide [TiO2] 0-2%
Copper Oxide [CuO] 0.7% Max
ND - Not Detectable

Physical Properties

Physical Form Angular Granules
Specific Gravity 3.5g/cm3 Typical
Hardness 6 Moh
Bulk Density 1.75 Tonnes/m3
Melting Temperature > 2500°F
Chloride < 7ppm
Colour Black
Evaporation Rate N/A
Water Solubility Negligible
Odour None
Conductivity at 25oC 2m/S/m
Moisture Content <0.1%
Size (Min – Max) 1MM TO 1.5MM


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