角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)俗稱角(jiao)(jiao)(jiao)(jiao)鐵、是兩邊(bian)(bian)(bian)(bian)互相(xiang)垂(chui)直(zhi)成角(jiao)(jiao)(jiao)(jiao)形(xing)的(de)(de)(de)長條鋼(gang)(gang)材。有等(deng)(deng)邊(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)和(he)不(bu)等(deng)(deng)邊(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)之分。等(deng)(deng)邊(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)(de)(de) 兩個邊(bian)(bian)(bian)(bian)寬相(xiang)等(deng)(deng)。其規(gui)格以邊(bian)(bian)(bian)(bian)寬×邊(bian)(bian)(bian)(bian)寬×邊(bian)(bian)(bian)(bian)厚(hou)(hou)的(de)(de)(de)毫(hao)米(mi)數(shu)表示(shi)。如“∠30×30×3”，即表示(shi)邊(bian)(bian)(bian)(bian)寬為(wei) 30毫(hao)米(mi)、邊(bian)(bian)(bian)(bian)厚(hou)(hou)為(wei)3毫(hao)米(mi)的(de)(de)(de)等(deng)(deng)邊(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)。也(ye)可用型號(hao)表示(shi)，型號(hao)是邊(bian)(bian)(bian)(bian)寬的(de)(de)(de)厘米(mi)數(shu)，如∠3#。型號(hao)不(bu)表示(shi)同(tong)(tong)一(yi)型號(hao)中(zhong)不(bu)同(tong)(tong)邊(bian)(bian)(bian)(bian)厚(hou)(hou)的(de)(de)(de)尺(chi)寸，因而在合同(tong)(tong)等(deng)(deng)單據上將角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)(de)(de)邊(bian)(bian)(bian)(bian)寬、邊(bian)(bian)(bian)(bian)厚(hou)(hou)尺(chi)寸填寫齊(qi)全，避免單獨用型號(hao)表示(shi)。熱軋(ya)等(deng)(deng)邊(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)(de)(de)規(gui)格為(wei)2#-20#。角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)可按結構(gou)(gou)的(de)(de)(de)不(bu)同(tong)(tong)需(xu)要(yao)組成各種不(bu)同(tong)(tong)的(de)(de)(de)受力構(gou)(gou)件，也(ye)可作(zuo)構(gou)(gou)件之間的(de)(de)(de)連接(jie)件。廣泛地(di)用于(yu)各種建筑結構(gou)(gou)和(he)工(gong)(gong)程結構(gou)(gou)，如房梁、橋梁、輸電塔、起重運輸機(ji)械(xie)、船舶、工(gong)(gong)業爐(lu)、反應塔、容器(qi)架以及倉庫。

　  角鋼可按結構的不同需要組成各種不同的受力構件，也可作構件之間的連接件。廣泛地用于各種建筑結構和工程結構，如房梁、橋梁、輸電塔、起重運輸機械、船舶、工業爐、反應塔、容器架、電纜溝支架、動力配管、母線支架安裝、以及倉庫貨架等。
角(jiao)鋼屬(shu)建造(zao)用碳素結構(gou)(gou)鋼，是簡單斷(duan)面的型(xing)鋼鋼材，主(zhu)要用于(yu)金屬(shu)構(gou)(gou)件及(ji)廠房的框架(jia)等。在使(shi)用中要求有較好的可(ke)焊(han)性(xing)、塑性(xing)變形性(xing)能及(ji)一(yi)定的機械強(qiang)度(du)。生產(chan)角(jiao)鋼的原料鋼坯為低碳方(fang)鋼坯，成(cheng)(cheng)品角(jiao)鋼為熱軋成(cheng)(cheng)形、正火或熱軋狀態交貨。