Tool Steel A2

Tool Steel A2 is an air-hardening cold-work tool steel that provides a good balance of toughness and wear resistance. Its air-hardening characteristic means minimal distortion during heat treatment, making it popular for precision tooling.

Machinability

40/100

Tolerance

±0.01 mm

Category

Tool Steel

Material Properties

Property	Value
Tensile Strength	896 MPa (130 ksi)
Yield Strength	724 MPa (105 ksi)
Hardness	57-62 HRC
Density	7.86 g/cm³
Machinability Rating	40/100
Thermal Conductivity	24.0 W/m·K
Melting Point	1,420 °C
Tolerance	±0.01 mm

Common Grades

A2AISI A2SKD121.2363

Advantages

Air-hardening (minimal distortion)
Good toughness
Good wear resistance
Excellent dimensional stability

Limitations

Lower wear resistance than D2
Not stainless
Requires heat treatment

Common Applications

Blanking dies

Punches

Trimming dies

Gauges

Mandrels

Plastic mold components

Industries Served

Tooling & Die MakingIndustrial MachineryPlastics Molding

Available Surface Finishes

Black OxideNitridePVD CoatingPolished

Material Comparisons

Tool Steel D2 vs A2: Which Die Steel for Your Application?

View Comparison →

Related Materials

Tool Steel D2

Machinability: 27/100

View Details →

Tool Steel H13

Machinability: 38/100

View Details →

Tool Steel S7

Machinability: 42/100

View Details →

Core CNC Services for Tool Steel A2

CNC MillingView service →CNC TurningView service →5-Axis CNCView service →Wire EDMView service →Surface FinishingView service →Rapid PrototypingView service →

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