AISI 420-B /420-C 
( MARTENSITIC)

AISI 420-B /420-C (MARTENSITIC)It is an appropriate stainless steel for applications in contact with water, steam and gasoline. Due to their chemical composition, the balls are able to be hardened, obtaining a lightly lower hardness to the chrome steel AISI 52100. They are very used in applications like valve, stainless bearings, polishing machinery (as mill element)

  • Range: 0,4 to 120 mm
  • Hardness: 45-60 HRc

AISI 440-C
 (​MARTENSITIC)

The stainless steel balls. 440-C have high hardness and high resistance to wear. They can be manufactured to very tight dimensional tolerances, making them well suited for precision applications. It has a corrosion resistance similar to that of AISI 420-C. They are supplied with passivation treatment.

Main applications: Valves for oil applications, stainless bearings, ball screws, ballpoint pen tips.

  • Range: 0,4 to 120 mm
  • Hardness: 57-65 HRc

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Phone (+34) 933 404 578

Email: luisaparicio@luisapariciosl.com

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