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焊(han)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(nian)代成都無(wu)縫、包(bao)鋼等企業按(an)《一般無(wu)縫鋼管(guan)》（YB 231-1970）和(he)后來的《輸(shu)送流(liu)體用無(wu)縫鋼管(guan)》（GB／T 8163-1987）標準，生產(chan)流(liu)體輸(shu)送用管(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(zui)大管(guan)徑為Φ630mm。

  從80年(nian)(nian)代開(kai)(kai)(kai)始(shi)，我(wo)國(guo)開(kai)(kai)(kai)展了(le)(le)(le)(le)按(an)API標準(zhun)(zhun)開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)研制(zhi)專用不(bu)銹鋼(gang)(gang)(gang)無縫(feng)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，為(wei)了(le)(le)(le)(le)適應(ying)這一發(fa)(fa)(fa)(fa)展的(de)(de)需要，成都無縫(feng)廠(chang)從80年(nian)(nian)代末開(kai)(kai)(kai)始(shi)了(le)(le)(le)(le)按(an)照API5L標準(zhun)(zhun)，開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)研制(zhi)生(sheng)產(chan)(chan)A、B、X42～X52鋼(gang)(gang)(gang)級(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。于1991年(nian)(nian)獲得了(le)(le)(le)(le)API 5L會標許可證(zheng)，并于當年(nian)(nian)向泰國(guo)出(chu)(chu)口管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1992年(nian)(nian)向臺灣地區(qu)出(chu)(chu)口Φ245mm的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。90年(nian)(nian)代中(zhong)后期又研制(zhi)出(chu)(chu)了(le)(le)(le)(le)X56、X60、X65鋼(gang)(gang)(gang)級(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，并為(wei)勝利(li)油田批量供應(ying)X56級(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；向伊拉(la)克出(chu)(chu)口幾(ji)萬噸(dun)X60級(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。天(tian)津鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公司(si)250連軋管(guan)(guan)(guan)(guan)(guan)(guan)機組投產(chan)(chan)后不(bu)久就開(kai)(kai)(kai)始(shi)了(le)(le)(le)(le)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)研制(zhi)，1997年(nian)(nian)為(wei)渤海(hai)(hai)油田開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)研制(zhi)出(chu)(chu)X56級(ji)(ji)φ219.1×12.7mm海(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1998年(nian)(nian)為(wei)勝利(li)油田開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)生(sheng)產(chan)(chan)X56鋼(gang)(gang)(gang)級(ji)(ji)ф114.3mm×10mm、ф273.1mm×12.7mm海(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；1999-2000年(nian)(nian)為(wei)沙特阿美公司(si)開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)生(sheng)產(chan)(chan)出(chu)(chu)了(le)(le)(le)(le)4萬噸(dun)X60鋼(gang)(gang)(gang)級(ji)(ji)ф168.3mmx12.7mm、φ219.1mmx12.7mm、φ273.1mmx12.7mm等多個規格(ge)的(de)(de)海(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)；2000年(nian)(nian)后又開(kai)(kai)(kai)發(fa)(fa)(fa)(fa)出(chu)(chu)X65Q、X70Q、X80Q級(ji)(ji)高(gao)強度管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，適合海(hai)(hai)洋(yang)環境(jing)和(he)抗腐蝕環境(jing)的(de)(de)X60QS、X65QS鋼(gang)(gang)(gang)級(ji)(ji)管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)，適合低溫(wen)環境(jing)的(de)(de)X60L、X65L管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)管(guan)(guan)(guan)(guan)(guan)(guan)。

  2005年(nian)(nian)(nian)以后隨著國內(nei)幾條中(zhong)大口(kou)(kou)徑的(de)(de)連(lian)軋(ya)(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組(zu)(zu)(zu)的(de)(de)建(jian)立，如衡陽鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、攀成(cheng)鋼(gang)(gang)(gang)(gang)(gang)的(de)(de)Φ340mm機(ji)組(zu)(zu)(zu)，天(tian)津(jin)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、寶鋼(gang)(gang)(gang)(gang)(gang)、包(bao)鋼(gang)(gang)(gang)(gang)(gang)的(de)(de)ф460mm機(ji)組(zu)(zu)(zu)，天(tian)淮的(de)(de)φ508mm機(ji)組(zu)(zu)(zu)，以及天(tian)津(jin)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)Φ720mm斜軋(ya)(ya)擴(kuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組(zu)(zu)(zu)，衡陽鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)φ720mm周期式軋(ya)(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機(ji)組(zu)(zu)(zu)，使(shi)(shi)無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)直徑擴(kuo)大到Φ711mm，其中(zhong)包(bao)括ф323.9mm、ф406mm、Φ457mm、φ508mm、φ610mm等(deng)。2007年(nian)(nian)(nian)塔里木油(you)田迪(di)那氣田，使(shi)(shi)用了天(tian)津(jin)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)(chan)的(de)(de)當時最大口(kou)(kou)徑的(de)(de)ф457mmx17.5mm、X60Q鋼(gang)(gang)(gang)(gang)(gang)級不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，2008年(nian)(nian)(nian)中(zhong)海(hai)(hai)油(you)潿洲項目使(shi)(shi)用了適(shi)(shi)合海(hai)(hai)洋(yang)環境(jing)和(he)抗(kang)腐蝕環境(jing)X60QS及X65QS鋼(gang)(gang)(gang)(gang)(gang)級Φ406.4mm的(de)(de)無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)產(chan)(chan)品。另(ling)外，天(tian)津(jin)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)公司2010年(nian)(nian)(nian)在(zai)國內(nei)首次開(kai)(kai)發(fa)了適(shi)(shi)合深(shen)水作(zuo)業的(de)(de)盤(pan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)用無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，且產(chan)(chan)品成(cheng)功出(chu)(chu)口(kou)(kou)到歐洲。無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)開(kai)(kai)發(fa)極大地(di)(di)滿(man)足(zu)國內(nei)陸地(di)(di)、海(hai)(hai)洋(yang)油(you)氣田的(de)(de)開(kai)(kai)發(fa)和(he)建(jian)設(she)，并(bing)大量(liang)出(chu)(chu)口(kou)(kou)到中(zhong)東、東南(nan)亞、非洲、美洲、歐洲等(deng)地(di)(di)。近10年(nian)(nian)(nian)來，我(wo)國無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)(chan)企業天(tian)津(jin)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、衡陽鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、寶鋼(gang)(gang)(gang)(gang)(gang)、攀成(cheng)鋼(gang)(gang)(gang)(gang)(gang)、包(bao)鋼(gang)(gang)(gang)(gang)(gang)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)，每年(nian)(nian)(nian)都(dou)生產(chan)(chan)大量(liang)的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)出(chu)(chu)口(kou)(kou)到國外，出(chu)(chu)口(kou)(kou)量(liang)在(zai)150～227萬噸(dun)之間(jian)，占不(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)(gang)無(wu)(wu)縫管(guan)(guan)(guan)(guan)(guan)(guan)(guan)出(chu)(chu)口(kou)(kou)量(liang)的(de)(de)42％～49.5％，鋼(gang)(gang)(gang)(gang)(gang)級從B級到X級（X42-X70及少(shao)量(liang)的(de)(de)X80），品種包(bao)括海(hai)(hai)底管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、抗(kang)硫(liu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)，見圖8-7和(he)圖8-8。