X Axis

 

• The X-axis of the iron-iron C Equilibrium Diagram shows the various percentages of Carbon in alloy Ferrite.
• The Carbon and Ferrite percentage begins from 0% and 100% and ends at 5% and 95%.
• The X-axis designates whether the metal would be considered Pure Iron, Steel, Semi-Steel and Cast Iron.
• It also distinguishes between Hypo Eutectoid and Hyper Eutectoid and Hypo Eutectic and Hyper Eutectic.
• Above 4.3% C is Hyper Eutectic. Below is Hyper Eutectic. Below .83% C, the specimen is Hypo Eutectoid and more than .83% C, the specimen is Hyper Eutectoid.

 

                                                             Y Axis

 

• The Y-axis of the iron-iron C Equilibrium Diagram shows temperature range from 0 to 3000 degrees Fahrenheit.
• It also shows temperature in centigrade ranging from 0 to1500 degrees Celsius. 
• It also denotes the Critical temperature point-Lower Critical Temperature and Upper Critical Temperature.
• It also specifies the magnetic point, where particular combination of iron and carbon changes its magnetic properties.
• Depending on different carbon %, in addition of different ratings scale, the metals will react differently.