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  • Prevention of Defects in Steel Casting Process
    • High-alloy Steel Grades
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    • Low-alloy Steel Grades
    • Medium-alloy Steel Grades
    • Solving Problems Involved in Manufacturing Castings from Acid Steel
  • Prevention of defects in metallurgical products
    • Prevention of defects in steel making process
  • Prevention of Defects in Iron Casting Process
    • Gray Iron (GI)
    • Spheroidal Gray Iron (SGI)
    • Compacted Graphite Iron (CGI)
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Ещё
    Company
    • Company Profile
    • Certificates
    • Our Team
    • Company Details
    News
    Products
    • Inoculants for steel
    • Inoculants for graphitizing treatment of irons
    • Spheroidizers
    • Master alloys
    • Cored wire
    • Refining materials
    • Ferroalloys
    Engineering support
    Prevention of casting defects
    • Prevention of Defects in Steel Casting Process
      • High-alloy Steel Grades
      • Carbon Steel Grades
      • Low-alloy Steel Grades
      • Medium-alloy Steel Grades
      • Solving Problems Involved in Manufacturing Castings from Acid Steel
    • Prevention of defects in metallurgical products
      • Prevention of defects in steel making process
    • Prevention of Defects in Iron Casting Process
      • Gray Iron (GI)
      • Spheroidal Gray Iron (SGI)
      • Compacted Graphite Iron (CGI)
    Contacts
    Ещё
      Русский English
      Русский English
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        • Company
        • Company Profile
        • Certificates
        • Our Team
        • Company Details
      • News
      • Products
        • Back
        • Products
        • Inoculants for steel
        • Inoculants for graphitizing treatment of irons
        • Spheroidizers
        • Master alloys
        • Cored wire
        • Refining materials
        • Ferroalloys
      • Engineering support
      • Prevention of casting defects
        • Back
        • Prevention of casting defects
        • Prevention of Defects in Steel Casting Process
          • Back
          • Prevention of Defects in Steel Casting Process
          • High-alloy Steel Grades
          • Carbon Steel Grades
          • Low-alloy Steel Grades
          • Medium-alloy Steel Grades
          • Solving Problems Involved in Manufacturing Castings from Acid Steel
        • Prevention of defects in metallurgical products
          • Back
          • Prevention of defects in metallurgical products
          • Prevention of defects in steel making process
        • Prevention of Defects in Iron Casting Process
          • Back
          • Prevention of Defects in Iron Casting Process
          • Gray Iron (GI)
          • Spheroidal Gray Iron (SGI)
          • Compacted Graphite Iron (CGI)
      • Contacts
      • +7 (351) 210-37-37
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      Russia, Chelyabinsk, Vodrem-40, 25, 454901 Phone/Fax: +7 (351) 210-37-37
      npp@npp.ru
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      Si-extra® inoculant

      • Main
      • Product
      • Inoculants for graphitizing treatment of irons
      • Si-extra® inoculant
      • Inoculants for steel
      • Inoculants for graphitizing treatment of irons
      • Spheroidizers
      • Master alloys
      • Cored wire
      • Refining materials
      • Ferroalloys
      Download catalog (.pdf)

      Our specialists will answer any of the questions that are of interest to you
      Ask a question
      Methods of inoculation:
      ladle inoculation
      metal stream inoculation (MSI)
      cored wire treatment
      • Si-extra® inoculant
      • Description
      • Packaging
      • Download
      Description

      The grades of this inoculant are as follows: Si-extra®B, Si-extra®S, Si-extra®Z and Si-extra®Z-S

      These highly efficient graphitizing inoculants are used for the production of grey irons with high and medium content of sulfur.

      Such chemically active components as Ba, Zr, Sr and RE in small concentrations in combination with high-concentration silicon (up to 80%) produce a powerful graphitizing effect when the inoculants of these grades are added to the melt during the period of its precrystallization even in small quantities.

      Treatment of irons with these inoculants makes it possible to solve the following objectives:

      • prevent appearance of chilling defects in thin-walled castings when cooling occurs at high speeds
      • promote uniform distribution of type A graphite in the structure of the melt
      • neutralize the harmful influence of nitrogen that leads to the formation of gas- and shrinkage-related porosity defects
      • enhance the mechanical properties of cast iron

      Si-extra® inoculants are used successfully to treat irons utilized for manufacturing by chill casting piston rings for internal combustion engines and fittings for high-voltage electric networks.

      Standard sizes of inoculant particles:

      • 0.5-3 mm for inoculants introduced into the molten metal as it enters a ladle
      • 3-10 mm for inoculants placed at the bottom of a ladle
      • 0.2 -0.8 mm for inoculants introduced into the molten metal as it enters a mold

      In the case when molten metal is poured into a ladle, 0.5-2 kg of inoculants is consumed per 1 t of iron.

      In the case when molten metal is poured into a mold, twice as small an amount of inoculants may be consumed.
      Packaging
      Packaging
      • PE-lined big bags with capacities of 0.5 and 1.0 tons
      • Paper bags with capacities up to 25 kg
      • Cored wires
      Download
      Si-extra
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      Inoculants for steel
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      Master alloys
      Cored wire
      Refining materials
      Ferroalloys
      Contacts


      +7 (351) 210-37-37
      npp@npp.ru
      Russia, Chelyabinsk, Vodrem-40, 25, 454901 Phone/Fax: +7 (351) 210-37-37
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