不等(deng)(deng)邊(bian)(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)截面高度按(an)不等(deng)(deng)邊(bian)(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)長(chang)(chang)邊(bian)(bian)(bian)(bian)(bian)寬(kuan)來計(ji)算。指斷面為角(jiao)(jiao)(jiao)(jiao)形且兩邊(bian)(bian)(bian)(bian)(bian)長(chang)(chang)不相等(deng)(deng)的(de)鋼(gang)(gang)材。是角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)中的(de)一(yi)種。其邊(bian)(bian)(bian)(bian)(bian)長(chang)(chang)由25mm×16mm～200mm×l25mm。由熱軋(ya)(ya)軋(ya)(ya)機(ji)軋(ya)(ya)制而(er)成。角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)交貨長(chang)(chang)度分(fen)為定(ding)尺(chi)(chi)(chi)、倍(bei)尺(chi)(chi)(chi)兩種，國產角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)定(ding)尺(chi)(chi)(chi)選擇(ze)范圍根據(ju)規(gui)格號(hao)的(de)不同(tong)(tong)有3—9m、4—12m、4—19m、6—19m四個范圍。日本產角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)長(chang)(chang)度選擇(ze)范圍為6—15m。型(xing)(xing)(xing)號(hao)不表(biao)示同(tong)(tong)一(yi)型(xing)(xing)(xing)號(hao)中不同(tong)(tong)邊(bian)(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鐵厚(hou)的(de)尺(chi)(chi)(chi)寸，因而(er)在合同(tong)(tong)等(deng)(deng)單據(ju)上將角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)邊(bian)(bian)(bian)(bian)(bian)寬(kuan)、邊(bian)(bian)(bian)(bian)(bian)厚(hou)尺(chi)(chi)(chi)寸填寫(xie)齊全(quan)，避獨用(yong)型(xing)(xing)(xing)號(hao)表(biao)示。熱軋(ya)(ya)等(deng)(deng)邊(bian)(bian)(bian)(bian)(bian)角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)規(gui)格為2#-20#。角(jiao)(jiao)(jiao)(jiao)鋼(gang)(gang)可按(an)結構(gou)的(de)不同(tong)(tong)需要組成各種不同(tong)(tong)的(de)受力構(gou) 件(jian)，也可作構(gou)件(jian)之(zhi)間的(de)連接件(jian)。

一般(ban)邊長12.5cm以上的(de)為(wei)大型角(jiao)(jiao)(jiao)鋼(gang)，12.5cm—5cm之(zhi)間(jian)的(de)為(wei)中型角(jiao)(jiao)(jiao)鋼(gang)，邊長5cm以下的(de)為(wei)小型角(jiao)(jiao)(jiao)鋼(gang)。角(jiao)(jiao)(jiao)鋼(gang)的(de)種(zhong)(zhong)類規(gui)則：角(jiao)(jiao)(jiao)鋼(gang)的(de)交(jiao)貨長度分為(wei)定尺、倍尺兩(liang)種(zhong)(zhong)，國產角(jiao)(jiao)(jiao)鋼(gang)的(de)定尺選擇范圍(wei)根據規(gui)格號的(de)不同(tong)有3—9m、4—12m、4—19m、6—19m四(si)個范圍(wei)。日(ri)本產角(jiao)(jiao)(jiao)鋼(gang)的(de)長度選擇范圍(wei)為(wei)6—15m。角(jiao)(jiao)(jiao)鋼(gang)是(shi)什么角(jiao)(jiao)(jiao)鋼(gang)俗稱(cheng)角(jiao)(jiao)(jiao)鐵、是(shi)兩(liang)邊互(hu)相(xiang)垂直成角(jiao)(jiao)(jiao)形的(de)長條鋼(gang)材。有等邊角(jiao)(jiao)(jiao)鋼(gang)和不等邊角(jiao)(jiao)(jiao)鋼(gang)之(zhi)分。等邊角(jiao)(jiao)(jiao)鋼(gang)的(de) 兩(liang)個邊寬相(xiang)等。

外(wai)觀質(zhi)量：角(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)表面質(zhi)量在標準中(zhong)有規定(ding)，一(yi)般(ban)要求(qiu)不(bu)(bu)得(de)(de)存在使用上有害的(de)缺陷，如(ru)(ru)分(fen)層、結疤、裂縫等(deng)(deng)。角(jiao)(jiao)(jiao)鋼(gang)(gang)幾何形(xing)狀偏差(cha)的(de)允(yun)許范圍(wei)在標準（GB9787—88/GB9788—88）中(zhong)也有規定(ding)，一(yi)般(ban)包括彎曲(qu)度、邊寬、邊厚、頂角(jiao)(jiao)(jiao)、理論(lun)重(zhong)量等(deng)(deng)項，角(jiao)(jiao)(jiao)鋼(gang)(gang)，并規定(ding)角(jiao)(jiao)(jiao)鋼(gang)(gang)不(bu)(bu)得(de)(de)有顯著的(de)扭(niu)轉(zhuan)。角(jiao)(jiao)(jiao)鋼(gang)(gang)可(ke)按結構的(de)不(bu)(bu)同需要組(zu)成各(ge)種(zhong)不(bu)(bu)同的(de)受(shou)力(li)(li)構件(jian)，也可(ke)作構件(jian)之(zhi)間的(de)連接(jie)件(jian)。廣泛地用于(yu)各(ge)種(zhong)建筑結構和工程結構，如(ru)(ru)房梁、橋梁、輸電(dian)塔(ta)、起重(zhong)運(yun)輸機械(xie)、船(chuan)舶(bo)、工業爐、反應塔(ta)、容器架(jia)、電(dian)纜溝支架(jia)、動力(li)(li)配管、母(mu)線支架(jia)安(an)裝、以及倉庫貨架(jia)等(deng)(deng)。不(bu)(bu)等(deng)(deng)邊角(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)截(jie)面高度按不(bu)(bu)等(deng)(deng)邊角(jiao)(jiao)(jiao)鋼(gang)(gang)的(de)長邊寬來計算。指斷(duan)面為角(jiao)(jiao)(jiao)形(xing)且(qie)兩邊長不(bu)(bu)相等(deng)(deng)的(de)鋼(gang)(gang)材。是角(jiao)(jiao)(jiao)鋼(gang)(gang)中(zhong)的(de)一(yi)種(zhong)。其邊長由25mm×16mm～200mm×l25mm。由熱軋軋機軋制而成。