Uburyo ibicuruzwa bitegurwaSemi GPC (SGPC) ikomoka ku gice cyo gukingira cy'itanura rya acheson. Ubushyuhe bwa grafitisation buri mu rugeroya 1700-2500ºC. Ni iya themedium temperature graphitization product. Ni recarburizer ihendutse ifitekaruboni ihoraho cyane, sulfure nkeya, ishonga ryihuse kandi ikanafata umuvuduko mwinshi wo kwinjiza.