A2 Tool Steel Hardness Before Hardening

A2 tool steel is a versatile air hardening tool steel that is characterized by good toughness and excellent dimensional stability in heat treatment.

A2 tool steel hardness before hardening.

It replaces o1 when safer hardening better dimensional stability and increased wear resistance are required. The prefix a in the name designates it as an air hardening steel. A2 air hardening medium alloy cold work tool steels are a type of group a steels containing molybdenum and chromium. 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.

Use for dies punches and similar forming and blanking tools as recommended for type o1 but where less distortion in heat treatment or better wear resistance is required. It is heat treatable and will offer a hardness in the range 57 62 hrc. Aisi a2 tool steel is high carbon high alloy tool steel designed to have excellent wear resistance and toughness. A2 steel is an air hardening cold work tool steel.

A simplified guide to heat treating tool steels when we consider that the greater overall costs of most tools and dies are incurred prior to heat treatment and further that proper heat treatment is critical to the successful application of tooling this so called hardening process is placed. A2 tool steel is a 5 chromium medium alloy cold work tool steel possessing sufficient hardenability to be air hardened to 60 rc surface hardness level with good depth of hardening. Aisi a2 is an air hardening tool steel containing 5 pct chromium. A2 tool steel properties 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.

A2 is intermediate in wear resistance between o1 oil hardening tool steel and d2 high carbon high chromium tool steel. Generally supplied annealed to hb 231 max. A2 provides an effective combination of strength and toughness tool performance price and a wide variety of product forms. Like d2 it is incredibly resistant to distortion during heat treating and is moderately machinable and grindable.

A2 tool steel is an air hardening cold work steel. The data below will provide an overview of a2 air hardening medium alloy cold work tool steels. A2 is a 5 chromium steel which provides high hardness after heat treatment with good dimensional stability. A2 tool steels can be deep hardened in order to minimize distortion.

A 5 chromium steel which provides high hardness after heat treatment with good dimensional stability.