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  • The forging division of AST continues the century-long tradition of forging in Terni started in 1884 when the company "Societa degli Alti Forni, Fonderie e Acciaierie di Terni" (SAFFAT) was founded
  • The choice of carbon and alloy elements utilized in the production of Back-up Rolls and Hot working Rolls for flat and shapred products aims to achieve the required mix of different properties, such as hardenability, hardness, toughness, fatigue and thermal cracking resistance
  • All machining steps are performed by using modern Numericla Control Lathes. Rolls are shipped by forging division of Acciai Speciali Terni machine finished and ready for service
  • Sdf quality system was one of the first Italian QA systems to be accepted by ASME for the manufacture of forged products for nuclear application

Power Generation

  • Fossil
  • Nuclear
  • Hydro


  • Working Rolls for Non-Ferrous material
  • Back-up Rolls for Ferrous and Non-Ferrous Materials

Shells & Special Components

  • Shells & tube Sheets for Nuclear and Petrochemical Reactor Vessels
  • Containers for Spent Fuel of NPP's
  • Closure Heads of Reactor Pressure Vessel

Heavy Industry & Die Blocks

  • Off-shore Installations
  • Open-die, Closed-die and Extrusion Presses
  • Die-Block for Automotive Businesses


Sdf is a fully integrated division equipped with state-of-the-art technologies in:

  • Steelmaking/Igpot Pouring
  • Heating for forging
  • Forging
  • Machining
  • Heat treatment
  • Final Machining
  • Destructive and Non-Destructive testing