異(yi)型(xing)(xing)無縫鋼管(guan)廣(guang)泛(fan)用于各種結(jie)構件、工(gong)具(ju)和(he)(he)機械零(ling)部件。和(he)(he)圓管(guan)相(xiang)比，異(yi)型(xing)(xing)管(guan)一般都有較(jiao)大(da)的慣(guan)性矩和(he)(he)截(jie)面模數，有較(jiao)大(da)的抗彎抗扭能力，可以大(da)大(da)減(jian)輕(qing)結(jie)構重量，節約鋼材。

異(yi)(yi)型管(guan)(guan)一般是(shi)根據斷截面(mian)來區分的，按材料(liao)來說又可分為無(wu)縫鋼(gang)管(guan)(guan)異(yi)(yi)型管(guan)(guan)，鋁合金異(yi)(yi)型管(guan)(guan)，塑料(liao)異(yi)(yi)型管(guan)(guan)。下(xia)面(mian)主要(yao)介紹(shao)一下(xia)鋼(gang)管(guan)(guan)異(yi)(yi)型管(guan)(guan)。

鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)異型(xing)(xing)(xing)(xing)管(guan)(guan)(guan)可分為(wei)橢圓(yuan)(yuan)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、三角(jiao)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、六(liu)角(jiao)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、菱形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、八角(jiao)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、半圓(yuan)(yuan)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)圓(yuan)(yuan)，不等(deng)邊六(liu)角(jiao)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、五瓣梅花(hua)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、雙凸形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、雙凹形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、瓜子形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、圓(yuan)(yuan)錐(zhui)形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、波紋形(xing)(xing)(xing)(xing)異型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)、燈籠型(xing)(xing)(xing)(xing)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)。