Specific heat is the energy stored in the form of heat per temperature and amount (mass, moles, or volume) and varies depending on composition, temperature, crystalline configuration, and phase (solid, liquid, or gas).
For elemental iron it varies from 4.13-10.0 cal/mole K or (in SI units) 309-749 J/kg K. For liquid elemental iron the specific heat capacity is 8.15 cal/mol K or (in SI units) 611 J/kg K.