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流鋼(gang)(gang)磚是(shi)指砌在鑄錠(ding)(ding)用底板的(de)溝槽內連通分鋼(gang)(gang)磚和鋼(gang)(gang)錠(ding)(ding)模的(de)中(zhong)(zhong)(zhong)空(kong)耐(nai)火(huo)磚，俗稱湯道磚。在鑄造(zao)領域中(zhong)(zhong)(zhong)，通過流鋼(gang)(gang)磚形(xing)成的(de)管道將(jiang)鋼(gang)(gang)水(shui)(shui) 或鐵(tie)水(shui)(shui)輸送到對應模具中(zhong)(zhong)(zhong)成型，流鋼(gang)(gang)磚一(yi)般為有多種規格的(de)長方體形(xing)中(zhong)(zhong)(zhong)空(kong)黏(nian)土磚。為減小鋼(gang)(gang)液流動(dong)過程中(zhong)(zhong)(zhong)的(de)阻力并防止漏鋼(gang)(gang)，要求(qiu)流鋼(gang)(gang)磚內孔(kong)光滑，外形(xing)規整，接縫嚴密。