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Tool steel A2
Material type: Metal, High hardness, High strength, Magnetic
Tool Steel A2 is a versatile, air-hardening tool steel that is characterized by good toughness and excellent dimensional stability in heat treatment. A2 is intermediate in wear resistance between O1 oil-hardening tool steel and D2 high-carbon, high-chromium tool steel. A2 provides an effective combination of strength and toughness, tool performance, price, and a wide variety of product forms.
Process compatibility
Material Color
Silver gray
Material advantages
A2 has high toughness and dimensional accuracy in hardened state. When it comes to wear and abrasion resistance is not as good as D2, but has better machinability.
Material shortcomings
-
Recommended description
A2 provides an effective combination of strength and toughness, tool performance, price, and a wide variety of product forms.
Properties
| Name | |
|---|---|
| Tensile strength | 2360MPa |
| Yield strength | 2140MPa |
| Density | 7.861g/cc |
| Hardness | 250HB |
| Elongation at Break | 6.1% |
| Modulus of elasticity | 219GPa |
| Maximum service temperature | 195 - 245 °C |
| Thermal expansion coefficent | 10.5 - 11 10^-6 ºC |
| Thermal conductivity | 36.1 - 39 W/(m⋅°C) |
Common applications
• Punches
• Dies
• Chuck jaws
• Cutting tools for woodworking
• Tooling for plastic injection
• Dowel pins
• Hammers
• Industrial knives
• Gage
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