Dead Burnt Magnesite (DBM)
Bricks made with Dead Burnt Magnesite or Magnesia (DBM) are an important category of basic refractoriness as it has the highest melting point i.e. 28000C, among all basic refractoriness. Magnetite bricks are characterized by good resistance to basic slag as well as low vulnerability to attack by iron oxide and alkalis. They are widely used in applications such as glass tank checkers, as sub hearth brick for electric arc furnaces and as back up lining in basic oxygen furnaces. Magnetite compositions are also widely used in ladle slide gate & gas purging refractories. Magnesite in combination with chrome, spinel and carbon is also used for various applications.
Ferro Alloys
Fesi (ferro Silicon)
Size (mm): 20~50 = 90%.
Tundish powder
Tundish flux or powder provides multiple functions. Firstly it insulates the molten steel both thermally (preventing excessive heat loss) and chemically (preventing air entrainment & reoxidation). The quality of the flux being used also play vital role, such as nitrogen pick-up was reported to be reduced from 16ppm to 5ppm, from ladle to mould by changing tundish flux with lower SiO2 content, in one of South American steel works. Secondly, in ideal circumstances, the flux also absorbs inclusions to provide additional steel refining.
Fluorspar lumps and powder (CaF2)
Fluorite (fluorspar): Used in production of hydrofluoric acid, which is used in the electroplating, stainless steel, refrigerant, and plastics industries, in production of aluminum fluoride, which is used in aluminum smelting, as a flux in ceramics and glass, in steel furnaces, and in emery wheels, optics, and welding rods.
Cored wires - Ca-Fe
Diameter (mm): 9,13,16 (¦ 0.5)
Coil thickness: 0.4+0.03mm
Powder density: 250 ¦ 5 g/m (for 13mm)
Powder weight per coil: Approx. 0.5-1.2 ton (or as per customers need)
Coil pay off direction: Horizontal/Vertical Inside pay off.
