Tool Steel A3 | L6 | 0.7C 1.0Cr 0.3Mo | CNC machining service | Custom Tool Steel A3 | L6 | 0.7C 1.0Cr 0.3Mo parts

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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.

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Tool steel A3 - Annealed state

Tool Steel A3 CNC Machining Applications & Parts

Typical Parts We Machine from Tool Steel A3:

Our Machining Advantage:

Let's Machine Your Vision, Together.