AISI/SAE 52100 (UNS G52986) High-Carbon, Chromium Alloy
Typical Analysis
C Mn P S Si Cr
.98/1.10 .25/45 .025 Max .025 Max .15/.30 .1.3/1.6
  • This high carbon, chromium alloy is stocked in the annealed condition.
  • This grade is manufactured by the electric furnace process. Typically the quenched hardness is 62 to 66 HRC depending mainly upon section thickness
Typical Applications
  • Grade E52100 is used primarily for races and balls or rollers of rolling-element (anti-friction) bearings. The grade is also suitable for parts requiring high hardness and wear resistance
Typical Mechanical Properties (Annealed)
  • Yield - 85,000 psi
  • Tensile - 105,000 psi
  • Elongation - 17%
  • Reduction Area - 50%
  • BHN at surface - 228

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