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CNC Machining Service for Tool steel A3 - Annealed state

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  • Material type

    Metal

  • Material name

    Tool steel A3 - Annealed state

  • Process compatibility

    CNC machining
Mechanical properties
Ultimate tensile strength
700 MPa
Yield strength
340 MPa
Young's modulus (modulus of elasticity)
190 GPa
Elongation at break
21 %
Physical properties
Corrosion resistance
Poor
Magnetism
Magnetic
Weldability
Poor
Thermal properties
Thermal expansion coefficent
11.8 - 14.3 10^-6/ºC
Thermal conductivity
37 W/(m⋅°C)
Electrical properties
Electrical resistivity
24.5 - 30.2 μΩ*cm
Post treatments
Post-Processing
Cold work, Annealing, Quenching, Tempering, Hardening
Anodizing compatibility
Not suitable
Common applications
Shear blades
Knurling tools
Cold forging dies
Cold forging & heading dies

Tool Steel A3 CNC Machining Applications & Parts

Tool Steel A3 is an air-hardening, medium-alloy cold work tool steel that offers a good balance of toughness, wear resistance, and dimensional stability during heat treatment. Its excellent machinability in the annealed condition makes it suitable for various precision tooling applications.

Typical Parts We Machine from Tool Steel A3:

  • Precision Gauges: Measuring instruments, inspection gauges, precision fixtures
  • Forming Tools: Blanking dies, forming punches, bending tools
  • Machine Components: Bushings, guides, sleeves, precision bearings

Our Machining Advantage:

We leverage A3's excellent machinability in the annealed state to achieve tight tolerances and fine surface finishes, followed by precise heat treatment to deliver components with optimal hardness and performance.

Get an Instant Quotefor your custom Tool Steel A3 parts today.

Tagged: metal tool steel
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