六角鋼是型鋼的一種(zhong)，也稱之(zhi)為(wei)六角棒(bang)，截面(mian)為(wei)正六邊形的棒(bang)材，以(yi)對邊長度S為(wei)標(biao)稱尺寸，六角鋼可按(an)結(jie)(jie)構(gou)的不同(tong)需要組成各(ge)種(zhong)不同(tong)的受力構(gou)件，也可作構(gou)件之(zhi)間的連(lian)接件。廣泛地用于各(ge)種(zhong)建(jian)筑結(jie)(jie)構(gou)和工程結(jie)(jie)構(gou)，如房梁、橋梁、輸(shu)電(dian)塔、起重(zhong)運(yun)輸(shu)機械、船舶(bo)、工業爐、反(fan)應塔、容器架以(yi)及(ji)倉庫貨架等。

　　異(yi)(yi)型(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)(guan)一般是根據斷截(jie)面、整體形(xing)(xing)狀來區分的，一般可(ke)分為：橢圓(yuan)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、三角(jiao)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、六(liu)角(jiao)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、菱形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、不(bu)(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)花(hua)紋管(guan)(guan)(guan)(guan)(guan)、不(bu)(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)U型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、D型(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)(guan)、不(bu)(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)彎(wan)管(guan)(guan)(guan)(guan)(guan)、S型(xing)(xing)(xing)(xing)管(guan)(guan)(guan)(guan)(guan)彎(wan)管(guan)(guan)(guan)(guan)(guan)、八(ba)角(jiao)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、半圓(yuan)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)圓(yuan)，不(bu)(bu)(bu)等邊六(liu)角(jiao)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、五瓣(ban)梅花(hua)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、雙凸形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、雙凹(ao)形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang) 不(bu)(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)存(cun)水彎(wan)管(guan)(guan)(guan)(guan)(guan)、瓜子形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、圓(yuan)錐形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、波紋形(xing)(xing)異(yi)(yi)型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)等。

　　六角鋼管應用材質分類：20號、45號、16錳等不同的材質不同的用途。

　　六角鋼管是外六邊形的鋼管。是異型鋼管的一種。多用于螺母、機械配件的加工等。空心六角棒是截面形狀外六邊形內圓形的鋼管的總稱，有焊接異型管和無縫異型管。因為材質的關系，可分為普通碳鋼異性鋼管，不銹鋼六角管。