CBS-50 NiL

UNS #K91231

CBS-50 NiL VIM VAR is a carburizing bearing and gear steel designed for service up to 600F (316C). The chemistry is engineered such that when suitably carburized and heat treated the case wil have a microstructure of fine tempered martensite with an even distribution of fine carbides. The primary advantage of CBS-50 NiL VIM VAR steel over conventional through hardening M50 is the relatively high fracture toughness properties of the core.

Type Analysis

  • Carbon (Nominal) 0.13
  • Silicon (Nominal) 0.2
  • Nickel (Nominal) 3.4
  • Manganese (Nominal) 0.25
  • Chromium (Nominal) 4.2
  • Molybdenum (Nominal) 4.25
  • Iron (Nominal) Balance
  • Vanadium (Nominal) 1.2


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Applicable Specifications

  • AMS 6278
  • B50TF211
  • C50TF84
  • MS 198
  • MSRR 6113
  • CPW 492
  • PWA 36140
  • EMS 35
  • FL-LA 2557.1 SX
  • 14-07





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