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CTS® 40A

UNS #S44002

CTS® 40A is a high-carbon chromium steel that provides stainless properties with excellent hardness. It attains a hardness of Rockwell C 56 and maximum toughness when heat-treated. The CTS® family of alloys offer superior edge retention and surface finish, along with an ability to be machined to a fine edge and consistent heat-treatability from lot to lot.

Type Analysis

  • Carbon (Maximum) 0.60-0.75
  • Phosphorus (Maximum) 0.03
  • Silicon (Maximum) 1
  • Manganese (Maximum) 1
  • Sulfur (Maximum) 0.03
  • Chromium (Nominal) 16.00-18.00
  • Molybdenum (Maximum) 0.75
  • Iron (Maximum) Balance

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Applicable Specifications

  • ASTM A276

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