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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
    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
      • Company
        • Back
        • 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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      R-GRAPH® inoculants for graphitizing treatment

      • Main
      • Product
      • Inoculants for graphitizing treatment of irons
      • R-GRAPH® inoculants for graphitizing treatment
      • 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
      • R-GRAPH® inoculants for graphitizing treatment
      • Description
      • Packaging
      • Download
      Description

      The main component of the R-GRAPH® inoculant is cerium (Ce). It is a rare earth metal. Combining with small amounts of calcium and aluminum it impacts significantly the structure of the cast iron being treated and binds tightly oxygen to sulfur and the traces of non-ferrous metals present in the cast irons produced in EA furnaces. Thus, it creates a large amount of additional graphite crystallization centers and the strength properties of resultant castings significantly improve.

      As cerium has high density, the compounds it forms with non-metallic inclusions and non-ferrous metals are not prone to liquation and can stay in the melt for a long time thus extending the inoculating effect. This asset is particularly important when large amounts of molten iron are poured for long periods of time.

      The R-GRAPH® inoculant can dissolve in liquid irons at relatively low temperatures. Due to this, it can efficiently treat "cold" cupola melted irons at temperatures as low as 1,200°C.

      Standard sizes of inoculant particles:

      • 0.8-3 mm for inoculants introduced into the molten metal as it enters a ladle
      • 1-10 mm for inoculants placed in 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, 2-3 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
      R-GRAPH
      1.6 Мб

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      Spheroidizers
      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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