The Heat Capacity of Gray Cast Iron constant displays the value of the heat capacity for gray cast iron ASTM A48 Class 40 (0.460 J/g K).
Heat capacity, or thermal capacity, is defined as the amount of heat to be supplied to an object to produce a unit change in its temperature. The SI unit of heat capacity is joule per kelvin. The thermal capacity of gray cast iron is 0.460 J/g K.
Material Properties (https://material-properties.org/heat-capacity-of-materials/)