We use our own cookies and third parties ones to offer our services and collect statistical data. If you continue browsing the internet you accept them. More information about the Cookies Policy

Precision balls

Stainless steel balls

Stainless steel balls

AISI 420-B /420-C


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


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

AISI 304 /304L


The balls manufactured in this steel type present an excellent resistance to the corrosion in contact with organic chemical substances and oxidising solutions. Due to their chemical composition this material doesn't admit to be hardened and it presents a low magnetism. Used mainly in micro-valves for atomizers, agricultural pumps, etc.

  • Range: 0,4 to 150 mm
  • Hardness: 25-39 HRC

AISI 316/316L


Similar to AISI 304, this material presents a bigger resistance to the corrosion, being at the same time more antimagnetic. It is used mainly in alimentary industry and chemistry.

  • Range: de 0,4 to 152,4 mm
  • Hardness: 25-39 HRC


Our offices' location is the following
If you are interested in any product you can request information through the following form and we will contact you.
DATA PROTECTION INFORMATION. Purposes: To respond to your requests and send you commercial information about our products and services, including by e-mail. Legitimation: Consent of the interested party. Recipients: No transfer of data is foreseen. Rights: You may withdraw your consent at any time, as well as access, rectify, delete your data and other rights at luisaparicio@luisapariciosl.comAdditional information: further information can be found at Privacy Policy