Micro-Melt® M42

UNS #T11342

Micro-Melt® M42® is a powder metal super-high-speed steel possessing a hardness capability of Rockwell C 68/70 used for cutting tools in the toughest machining operations. Many of the benefits realized in the use of Micro-Melt® powder metals, including ease of grinding, improved response to heat treatment, greater wear resistance, and increased toughness of the finished tool, are a direct result of the refined microstructure featuring smaller, more uniformly distributed carbide particles and a finer grain size, as well as the lack of segregation in the powder metallurgy product. In addition, Carpenter Technology's unique hot rolling and rotary forging capabilities impart minimal distortion characteristics to these alloys.

Type Analysis

  • Carbon (Nominal) 1.1
  • Silicon (Maximum) 0.6
  • Tungsten (Nominal) 1.5
  • Manganese (Maximum) 0.3
  • Sulfur (Maximum) 0.06
  • Chromium (Nominal) 3.75
  • Cobalt (Nominal) 8.25
  • Molybdenum (Nominal) 9.5
  • Iron (Nominal) Balance
  • Vanadium (Nominal) 1.15

Applications

Twist drills Turning tools End mills Milling cutters Broaches Router bits Form tools Keyway cutters Dovetail tools Flycutters Thread rolling dies Tool bits

Applicable Specifications

Bar

Billet

Flats

HIP'd Shapes

Powder

Rounds

Square

Wire

RELATED RESOURCES

Browse our growing library of resources including case studies, product brochures, technical data sheets, product selection guides and more.