我國早期的管道建設主要采用的是不(bu)銹鋼無縫管，但口徑受到了限制。隨著焊管生產技術的發展和焊管質量的提高以及不銹鋼(gang)焊管的直徑可以做得更大，焊管很快就替代了不銹鋼無縫管，成為管道建設的主角。隨著管道建設向大型化、高輸送量發展，中大口徑的管道基本采用了焊管，90年代以來，我國油氣管道的主干線全部被焊管所壟斷，不銹鋼無縫管主要用于支線管、集輸管線、海底管線和城市的管網。

  70-80年代成都無縫(feng)(feng)、包(bao)鋼等企(qi)業按(an)《一般無縫(feng)(feng)鋼管(guan)》（YB 231-1970）和后來的《輸送流(liu)(liu)體用(yong)無縫(feng)(feng)鋼管(guan)》（GB／T 8163-1987）標準，生產流(liu)(liu)體輸送用(yong)管(guan)，主(zhu)要牌號：A3（A3F）、10、20、16Mn、Q235、Q295、Q345等，主(zhu)要管(guan)徑：Φ159mm、ф219mm、φ273mm、Φ325mm、φ426mm、最大管(guan)徑為Φ630mm。

  從(cong)(cong)80年(nian)(nian)(nian)代(dai)開(kai)(kai)始(shi)，我國(guo)(guo)開(kai)(kai)展了(le)按(an)API標(biao)(biao)準(zhun)開(kai)(kai)發研制(zhi)專用不(bu)銹鋼無縫管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，為(wei)了(le)適(shi)應這一發展的(de)(de)(de)需要(yao)，成都(dou)無縫廠從(cong)(cong)80年(nian)(nian)(nian)代(dai)末開(kai)(kai)始(shi)了(le)按(an)照API5L標(biao)(biao)準(zhun)，開(kai)(kai)發研制(zhi)生產A、B、X42～X52鋼級(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。于(yu)1991年(nian)(nian)(nian)獲(huo)得了(le)API 5L會(hui)標(biao)(biao)許可證，并于(yu)當年(nian)(nian)(nian)向(xiang)泰國(guo)(guo)出(chu)口(kou)(kou)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1992年(nian)(nian)(nian)向(xiang)臺灣地區出(chu)口(kou)(kou)Φ245mm的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。90年(nian)(nian)(nian)代(dai)中后期又研制(zhi)出(chu)了(le)X56、X60、X65鋼級(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，并為(wei)勝(sheng)利(li)油(you)田(tian)批(pi)量(liang)供(gong)應X56級(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；向(xiang)伊拉(la)克出(chu)口(kou)(kou)幾萬噸(dun)X60級(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。天津鋼管(guan)(guan)(guan)(guan)(guan)(guan)公司(si)250連軋管(guan)(guan)(guan)(guan)(guan)(guan)機組投產后不(bu)久就開(kai)(kai)始(shi)了(le)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)研制(zhi)，1997年(nian)(nian)(nian)為(wei)渤海(hai)(hai)(hai)油(you)田(tian)開(kai)(kai)發研制(zhi)出(chu)X56級(ji)φ219.1×12.7mm海(hai)(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1998年(nian)(nian)(nian)為(wei)勝(sheng)利(li)油(you)田(tian)開(kai)(kai)發生產X56鋼級(ji)ф114.3mm×10mm、ф273.1mm×12.7mm海(hai)(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1999-2000年(nian)(nian)(nian)為(wei)沙(sha)特(te)阿美(mei)公司(si)開(kai)(kai)發生產出(chu)了(le)4萬噸(dun)X60鋼級(ji)ф168.3mmx12.7mm、φ219.1mmx12.7mm、φ273.1mmx12.7mm等多個(ge)規格(ge)的(de)(de)(de)海(hai)(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；2000年(nian)(nian)(nian)后又開(kai)(kai)發出(chu)X65Q、X70Q、X80Q級(ji)高(gao)強度管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，適(shi)合海(hai)(hai)(hai)洋(yang)環(huan)境(jing)和抗腐(fu)蝕環(huan)境(jing)的(de)(de)(de)X60QS、X65QS鋼級(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，適(shi)合低溫環(huan)境(jing)的(de)(de)(de)X60L、X65L管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。

  2005年(nian)(nian)(nian)以(yi)后隨著國(guo)(guo)內(nei)(nei)幾條中(zhong)大(da)口(kou)(kou)徑(jing)的(de)(de)連軋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組的(de)(de)建(jian)(jian)立，如衡(heng)陽鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、攀成(cheng)(cheng)鋼(gang)(gang)(gang)(gang)的(de)(de)Φ340mm機(ji)組，天(tian)津鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、寶鋼(gang)(gang)(gang)(gang)、包鋼(gang)(gang)(gang)(gang)的(de)(de)ф460mm機(ji)組，天(tian)淮的(de)(de)φ508mm機(ji)組，以(yi)及天(tian)津鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)Φ720mm斜軋擴管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組，衡(heng)陽鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)φ720mm周期式軋管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組，使無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)直徑(jing)擴大(da)到Φ711mm，其中(zhong)包括(kuo)ф323.9mm、ф406mm、Φ457mm、φ508mm、φ610mm等(deng)。2007年(nian)(nian)(nian)塔里木油(you)田(tian)迪(di)那氣田(tian)，使用了天(tian)津鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)的(de)(de)當(dang)時最大(da)口(kou)(kou)徑(jing)的(de)(de)ф457mmx17.5mm、X60Q鋼(gang)(gang)(gang)(gang)級不(bu)銹鋼(gang)(gang)(gang)(gang)無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，2008年(nian)(nian)(nian)中(zhong)海(hai)油(you)潿洲(zhou)項目(mu)使用了適合(he)海(hai)洋環(huan)境(jing)和(he)抗腐蝕(shi)環(huan)境(jing)X60QS及X65QS鋼(gang)(gang)(gang)(gang)級Φ406.4mm的(de)(de)無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)產(chan)品。另(ling)外(wai)(wai)，天(tian)津鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司2010年(nian)(nian)(nian)在國(guo)(guo)內(nei)(nei)首次開發了適合(he)深水作業的(de)(de)盤管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，且產(chan)品成(cheng)(cheng)功出口(kou)(kou)到歐(ou)洲(zhou)。無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)開發極大(da)地(di)滿足國(guo)(guo)內(nei)(nei)陸地(di)、海(hai)洋油(you)氣田(tian)的(de)(de)開發和(he)建(jian)(jian)設，并大(da)量(liang)(liang)出口(kou)(kou)到中(zhong)東、東南亞、非洲(zhou)、美(mei)洲(zhou)、歐(ou)洲(zhou)等(deng)地(di)。近10年(nian)(nian)(nian)來，我國(guo)(guo)無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)企業天(tian)津鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、衡(heng)陽鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、寶鋼(gang)(gang)(gang)(gang)、攀成(cheng)(cheng)鋼(gang)(gang)(gang)(gang)、包鋼(gang)(gang)(gang)(gang)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)，每年(nian)(nian)(nian)都生產(chan)大(da)量(liang)(liang)的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)出口(kou)(kou)到國(guo)(guo)外(wai)(wai)，出口(kou)(kou)量(liang)(liang)在150～227萬(wan)噸(dun)之間(jian)，占不(bu)銹鋼(gang)(gang)(gang)(gang)無(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)出口(kou)(kou)量(liang)(liang)的(de)(de)42％～49.5％，鋼(gang)(gang)(gang)(gang)級從B級到X級（X42-X70及少量(liang)(liang)的(de)(de)X80），品種包括(kuo)海(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、抗硫(liu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)，見圖8-7和(he)圖8-8。