厚壁無(wu)縫(feng)(feng)方管(guan)(guan)(guan)(guan)(guan)生(sheng)產的生(sheng)產制造工藝(yi)可分(fen)為(wei)(wei)冷拔(ba)、冷軋(ya)和熱軋(ya)三種基本方式，鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)的材(cai)質為(wei)(wei)10#、20#、35#、45#稱為(wei)(wei)普(pu)通鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)，16Mn介(jie)于普(pu)通鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)和合(he)金(jin)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)之間(jian)稱為(wei)(wei)低(di)合(he)金(jin)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)，鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)的材(cai)質為(wei)(wei)27SiMn、12Cr1MoV、10CrMo910、15CrMo、35CrMo以及不(bu)銹鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)統稱為(wei)(wei)合(he)金(jin)方管(guan)(guan)(guan)(guan)(guan)。按照(zhao)用(yong)(yong)途分(fen)為(wei)(wei)結構用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);輸送用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);鍋爐用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);鍋爐用(yong)(yong)高壓(ya)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);化肥設備用(yong)(yong)高壓(ya)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);地(di)質磚探用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);石油磚探用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);石油裂(lie)化用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);船舶(bo)用(yong)(yong)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);冷拔(ba)冷軋(ya)精密(mi)無(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan);各種合(he)金(jin)管(guan)(guan)(guan)(guan)(guan)。

生產(chan)工藝來分(fen)，可(ke)分(fen)為熱軋無(wu)(wu)縫(feng)方管(guan)(guan)、冷(leng)撥無(wu)(wu)縫(feng)方管(guan)(guan)、擠壓(ya)無(wu)(wu)縫(feng)方管(guan)(guan)、焊(han)接方管(guan)(guan)等種類(lei)，其中按(an)焊(han)接工藝分(fen)又可(ke)分(fen)為電弧焊(han)和(he)電阻焊(han)兩(liang)(liang)種方管(guan)(guan)，按(an)焊(han)縫(feng)分(fen)直縫(feng)焊(han)和(he)螺旋焊(han)方管(guan)(guan)兩(liang)(liang)種。按(an)生產(chan)標準來分(fen)有國(guo)際、日(ri)標、英制(zhi)、美標、歐標、非(fei)標等不(bu)同(tong)分(fen)類(lei)，按(an)斷面(mian)形(xing)狀可(ke)以(yi)分(fen)為花型方管(guan)(guan)、開口型方管(guan)(guan)、波紋型方管(guan)(guan)、異形(xing)方管(guan)(guan)，按(an)照表面(mian)處理分(fen)類(lei)又可(ke)以(yi)分(fen)為熱鍍鋅、電鍍鋅、涂油(you)、酸(suan)洗類(lei)方管(guan)(guan)。此(ci)外方管(guan)(guan)分(fen)類(lei)還有從管(guan)(guan)壁厚度、用途分(fen)類(lei)等，在這里就不(bu)一(yi)一(yi)介紹了，有興趣的朋(peng)友(you)可(ke)以(yi)深入了解一(yi)下。

異(yi)型無(wu)縫(feng)方管是(shi)除了圓管以外的(de)其(qi)他截(jie)面(mian)形(xing)狀的(de)API無(wu)縫(feng)鋼(gang)(gang)管的(de)總(zong)稱。按鋼(gang)(gang)管截(jie)面(mian)形(xing)狀尺(chi)寸的(de)不(bu)同又可分為(wei)等壁(bi)厚異(yi)型無(wu)縫(feng)鋼(gang)(gang)管(代號為(wei)D)、不(bu)等壁(bi)厚異(yi)型無(wu)縫(feng)鋼(gang)(gang)管(代號為(wei)BD)、變直徑(jing)異(yi)型無(wu)縫(feng)鋼(gang)(gang)管(代號為(wei)BJ)。異(yi)型無(wu)縫(feng)鋼(gang)(gang)管廣泛用于各種結(jie)構件(jian)、工具和機械(xie)零部(bu)件(jian)。和圓管相(xiang)比(bi)，異(yi)型管一般都(dou)有(you)(you)較大(da)的(de)慣性矩(ju)和截(jie)面(mian)模數，有(you)(you)較大(da)的(de)抗彎(wan)抗扭能力，可以大(da)大(da)減輕結(jie)構重量，節約(yue)鋼(gang)(gang)材。