異型無縫鋼管廣泛用于(yu)各種(zhong)結構(gou)件、工具和(he)機械零(ling)部件。和(he)圓管相比，異型管一般(ban)都有較大的(de)慣性(xing)矩(ju)和(he)截面(mian)模數，有較大的(de)抗彎(wan)抗扭能(neng)力(li)，可以大大減(jian)輕結構(gou)重量，節約鋼材。

異(yi)型(xing)(xing)管(guan)一(yi)般是根據斷截面來區分的，按材料來說又可分為(wei)無(wu)縫鋼(gang)管(guan)異(yi)型(xing)(xing)管(guan)，鋁合金異(yi)型(xing)(xing)管(guan)，塑(su)料異(yi)型(xing)(xing)管(guan)。下(xia)面主要介紹一(yi)下(xia)鋼(gang)管(guan)異(yi)型(xing)(xing)管(guan)。

鋼(gang)(gang)(gang)管(guan)(guan)(guan)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)管(guan)(guan)(guan)可分為橢圓形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、三角形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、六角形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、菱形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、八(ba)角形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、半(ban)圓形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)圓，不等邊六角形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、五瓣梅(mei)花形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、雙(shuang)凸形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、雙(shuang)凹形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、瓜子形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、圓錐形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、波(bo)紋形(xing)(xing)(xing)(xing)異(yi)(yi)(yi)(yi)型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)、燈籠型(xing)(xing)(xing)鋼(gang)(gang)(gang)管(guan)(guan)(guan)。