M-42

M42 High Speed Tool Steel For High-Performance Cutting

M-42 is a premium cobalt-based high-speed steel designed for demanding cutting applications. It offers excellent hardness, heat resistance, and edge retention for high-speed machining.

Built For Speed. Designed For Long Tool Life.

  • Excellent red hardness
  • Superior heat resistance
  • High hardness and wear resistance
  • Excellent edge retention
  • Performs at high cutting speeds
  • Suitable for abrasive conditions
  • Supports long production runs
  • Suitable for dry and interrupted cutting
Category:

Technical Specifications

Property Specification
Material M-42
Steel Type Cobalt-Based High Speed Tool Steel
AISI / SAE M42
Material No. 1.3247
European Grade HS2-10-1-8
Japanese Equivalent SKH59
British Equivalent S500
Typical Hardness HRC 66–68

 

Chemical Composition

Parameter Value
C 1.08%
Cr 3.8%
Mo 9.4%
W 1.5%
Co 8.0%
V 1.2%

Applications

High-Speed Machining

  • Stainless Steel
  • Tool Steel
  • Titanium
  • Inconel
  • Heat-Resistant Alloys

Cutting Tools

  • Drills
  • End Mills
  • Taps
  • Reamers
  • Gear Cutters
  • Thread Rollers

Industrial Tools

  • Metal Saws
  • Punches
  • Dies
  • High-Performance Cutting Tools

Heat Treatment

Built For High Hardness & Heat Resistance

Preheating
Reduces thermal stress and distortion.

Hardening
Develops the required hardness and structure.

Quenching
Provides controlled cooling after hardening.

Tempering
Balances hardness, toughness and dimensional stability.

Available Forms

Available In Multiple Forms

Available In:
Round Bars | Flats | Blocks | Custom Sizes

Supply Condition:
Annealed | Hardened & Tempered

Cutting Services:
Horizontal | Vertical | Lateral Bandsaw Cutting

Supply Condition

From Standard Stock To Custom Requirements

Annealed
Suitable for machining and heat treatment.

Hardened & Tempered
Suitable for high-performance cutting applications.

As-Rolled
Available subject to stock.

Full Length
Supplied in available dimensions.

Cut-to-Size
Precision cut to customer requirements.