graphitizable carbon
A non-graphitic carbon which upon graphitization heat treatment converts into graphitic carbon.
If it is preferred to define the characterizable state of material instead of its behaviour during subsequent treatment, the term 'pregraphitic carbon' could be considered.
PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 493 (