碳(tan)素工(gong)(gong)(gong)具(ju)鋼（tool steel）的(de)常用鋼號為T7～T13，T表(biao)(biao)示(shi)碳(tan)素工(gong)(gong)(gong)具(ju)鋼，后面的(de)數字(zi)表(biao)(biao)示(shi)平均含(han)碳(tan)量的(de)千分之幾。T7、T8常用于(yu)制(zhi)造風(feng)鎬、沖壓模具(ju)沖頭，T10、T11用于(yu)制(zhi)造絞刀(dao)等(deng)。碳(tan)素工(gong)(gong)(gong)具(ju)鋼標(biao)準(zhun)見GB／T 1298《碳(tan)素工(gong)(gong)(gong)具(ju)鋼》。