A2 Tool Steel Heat Treat

Heat treatment a2 tool steels are heated slowly to 788 c 1450 f and this is followed by increasing the temperature to 954 c 1750 f.

A2 tool steel heat treat.

By way of example a2 tool steel is annealed by heating to 1550 degrees f soaking for two hours at temperature furnace cooling 50 degrees f per hour to below 1200 degrees f followed by air cooling. The steel is composted of 1 percent carbon 3 percent silicon 6 percent manganese 5 3 percent chromium 1 1 percent molybdenum and 2 percent vanadium. It s highly wear resistant and moderately tough. It is heat treatable and will offer a hardness in the range 57 62 hrc.

This widely used tool steel has low distortion in heat treatment good machinability good toughness for severe service high abrasion resistance and deep hardening properties in large sections. In this condition most of the alloy content exists as alloy carbides dispersed throughout a soft matrix. These steels must be heat treated to develop their characteristic properties. A2 steel is an air hardening cold work tool steel.

A2 is also an air hardening tool steel but includes less than half the chromium 4 75 5 50 and a bit less carbon 0 95 1 05 than d2. By james croxon a2 tool steel can be difficult to heat treat. A 5 chromium steel which provides high hardness after heat treatment with good dimensional stability. A2 tool steel a2 tool steel is a versatile air hardening tool steel that is characterized by good toughness and excellent dimensional stability in heat treatment.

The wear resistance properties and cost place a2 between that of o1 and d2 tool steel making it a good all purpose grade for many applications. A2 is intermediate in wear resistance between o1 oil hardening tool steel and d2 high carbon high chromium tool steel. Aisi a2 tool steel is high carbon high alloy tool steel designed to have excellent wear resistance and toughness. A2 has a fully spheroidized structure and has exceptionally low inclusion levels.

Like d2 it is incredibly resistant to distortion during heat treating and is moderately machinable and grindable.