<i>Iron-carbon phase diagram</i>
<p><b>*</b> - % carbon (by mass)<br><b>**</b> - temperature (ºC)<br><b>A</b> - pearlite (eutectoid)<br><b>B</b> - ledeburite (eutectic)<br><b>a</b> - α + pearlite<br><b>b</b> - Fe<sub>3</sub>C + ledeburite + pearlite<br><b>c</b> - Fe<sub>3</sub>C + ledeburite<br><b>d</b> - cementite Fe<sub>3</sub>C + graphite<br><b>e</b> - ferrite α<br><b>f</b> - α + γ<br><b>g</b> - austenite γ<br><b>h</b> - γ + Fe<sub>3</sub>C + ledeburite<br><b>i</b> - Fe<sub>3</sub>C + ledeburite<br><b>j</b> - γ + liquid<br><b>k</b> - liquid<br><b>l</b> - liquid + Fe<sub>3</sub>C<br><b>m</b> - δ + γ<br><b>n</b> - δ<br></p>
<b>o</b> - δ + liquid
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