Hana ʻia ka UHP graphite electrode e ke kiʻekiʻe kiʻekiʻe o ka nila coke hana, graphitization mahana a hiki i 2800 ~ 3000 ° C, graphitization i loko o ke kaula o ka graphitizing umu ahi, wela ka mālama ʻana, a laila kona haʻahaʻa resistivity, liʻiliʻi linear hoʻonui coefficient a me ka maikaʻi thermal shock kū'ē. ʻaʻole ʻike ʻia ka māha a haki, ʻae ʻia e ka nui o kēia manawa.