一級冶(ye)金焦：A<12.5%,S<0.7%,Mt<7%,M25&gt;90%,CSR>60%

二(er)級(ji)冶金焦：A<13%,S<0.7%,Mt<8%,M25>90%,CSR>55% 

二級鑄(zhu)造焦：A<12.5%,S<0.7%,FC:85%

焦(jiao)(jiao)炭主要(yao)(yao)用(yong)(yong)(yong)于(yu)高(gao)爐(lu)煉(lian)(lian)(lian)鐵(tie)和(he)用(yong)(yong)(yong)于(yu)銅、鉛、鋅、鈦、銻、汞等有(you)色金屬(shu)的鼓風(feng)爐(lu)冶(ye)(ye)煉(lian)(lian)(lian)，起還原劑、發熱劑和(he)料柱骨架作(zuo)用(yong)(yong)(yong)。煉(lian)(lian)(lian)鐵(tie)高(gao)爐(lu)采用(yong)(yong)(yong)焦(jiao)(jiao)炭代替木炭，為現代高(gao)爐(lu)的大(da)型化奠定了基(ji)礎，是冶(ye)(ye)金史上的一個(ge)重大(da)里程碑(bei)。為使(shi)高(gao)爐(lu)操作(zuo)達到較好(hao)的技(ji)術經濟指標，冶(ye)(ye)煉(lian)(lian)(lian)用(yong)(yong)(yong)焦(jiao)(jiao)炭（冶(ye)(ye)金焦(jiao)(jiao)）必須具有(you)適當(dang)的化學性質(zhi)和(he)物理性質(zhi)，包(bao)括冶(ye)(ye)煉(lian)(lian)(lian)過程中的熱態性質(zhi)。焦(jiao)(jiao)炭除大(da)量(liang)用(yong)(yong)(yong)于(yu)煉(lian)(lian)(lian)鐵(tie)和(he)有(you)色金屬(shu)冶(ye)(ye)煉(lian)(lian)(lian)（冶(ye)(ye)金焦(jiao)(jiao)）外，還用(yong)(yong)(yong)于(yu)鑄造、化工、電(dian)(dian)石(shi)和(he)鐵(tie)合金，其質(zhi)量(liang)要(yao)(yao)求(qiu)有(you)所(suo)不同。如鑄造用(yong)(yong)(yong)焦(jiao)(jiao)，一般要(yao)(yao)求(qiu)粒度大(da)、氣孔率低、固定碳高(gao)和(he)硫分低；化工氣化用(yong)(yong)(yong)焦(jiao)(jiao)，對強度要(yao)(yao)求(qiu)不嚴，但要(yao)(yao)求(qiu)反應性好(hao)，灰熔(rong)點(dian)較高(gao)；電(dian)(dian)石(shi)生產(chan)用(yong)(yong)(yong)焦(jiao)(jiao)要(yao)(yao)求(qiu)盡量(liang)提(ti)高(gao)固定碳含量(liang)。