異型(xing)無縫(feng)鋼(gang)管廣泛用于各種(zhong)結(jie)構件、工(gong)具和機械(xie)零部(bu)件。和圓管相比，異型(xing)管一般都有較大(da)的慣性矩和截(jie)面(mian)模數，有較大(da)的抗(kang)彎抗(kang)扭能力，可以大(da)大(da)減輕結(jie)構重量，節約鋼(gang)材(cai)。

異(yi)(yi)型(xing)(xing)管(guan)(guan)一(yi)般是根據斷截(jie)面來區分(fen)的(de)，按(an)材料(liao)來說又可(ke)分(fen)為無(wu)縫鋼管(guan)(guan)異(yi)(yi)型(xing)(xing)管(guan)(guan)，鋁合金(jin)異(yi)(yi)型(xing)(xing)管(guan)(guan)，塑(su)料(liao)異(yi)(yi)型(xing)(xing)管(guan)(guan)。下面主要(yao)介紹(shao)一(yi)下鋼管(guan)(guan)異(yi)(yi)型(xing)(xing)管(guan)(guan)。

鋼(gang)(gang)管(guan)(guan)(guan)(guan)異(yi)型(xing)(xing)(xing)管(guan)(guan)(guan)(guan)可分為橢圓(yuan)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、三角(jiao)(jiao)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、六角(jiao)(jiao)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、菱形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、八角(jiao)(jiao)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、半(ban)圓(yuan)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)圓(yuan)，不等邊(bian)六角(jiao)(jiao)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、五瓣梅花(hua)形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、雙(shuang)凸形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、雙(shuang)凹形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、瓜子形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、圓(yuan)錐形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、波(bo)紋形(xing)異(yi)型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)、燈籠型(xing)(xing)(xing)鋼(gang)(gang)管(guan)(guan)(guan)(guan)。