S.S.420/S.S.440C Balls (Hardened)

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Product Profile

Balls manufactured from S.S.420 and S.S.440C materials are hardened and precisely ground and lapped to mirror finish. Having corrosion resistance along with wear resistance, these Balls are used in Pumps, Bearings, Valves, Nozzles, Offshore Drilling Equipments, etc....

Technical Specifications

Chemical Composition (%):

S.S.420

  • C: min. 0.15
  • Si: 1.00 max.
  • Mn: 1.00 max.
  • P: 0.04 max.
  • S: 0.03 max.
  • Cr: 12 - 14
  • Hardness: 48-54 HRC

S.S.440C
  • C: 0.95- 1.20
  • Si: 1.00 max.
  • Mn: 1.00 max.
  • P: 0.04 max.
  • S: 0.03 max.
  • Cr: 16 - 18
  • Hardness: 58-62 HRC