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A2 tool steel is an air hardened grade steel containing 5% chromium. 

A2 is known for its good toughness and excellent dimensional stability in heat treatment. These characteristics make it a multifunctional tool steel with good performance and price. 

A2 steel is somewhere between oil-hardened and D2 high-carbon, high-chromium tool steel.

Characteristics of A2 tool steel:

Very good without deformation

Deep hardening

High dimensional stability after quenching and tempering

Good machining

High compressive strength

Typical use

· Chuck Great White Shark

· Pin

· Hammer

· Knife

· Large punching die

· Wire rolling mold

· Changquan

· Rolls-Royce

· Main hub

· Dressing mold

· Forming mold

· Injection mold

· Precision tools

· Instrument

· Imprint mold

· Extrusion mold

· Mandrel

· Shear blade

· Slitter machine

· Woodworking tools

Chemical composition

Carbon -0.95%-1.05%

Manganese - 1.00% is the largest

Silicon -0.50% is the largest

Molybdenum - 0.90%-1.40%

Chromium - 4.75%-5.50%

Vanadium - 0.15%-.50%

* Nickel - 0.30% Max