To efficiently manufacture spherical carbon and spheroidal graphite resistant to strain and stress.

The spheroidal graphite is manufactured through a step wherein the spherical carbon comprising radially arranged carbon skeletons is grown by introducing a material hydrocarbon gas into a reaction zone comprising an inert gas atmosphere with a predetermined temperature range A and carbonizing the material hydrocarbon floating inside the reaction zone, and a step wherein the spherical carbon is graphitized by introducing the spherical carbon into an inert gas atmosphere with a predetermined temperature range B.

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