大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)技術(shu)(shu)日(ri)(ri)趨成熟(shu)。雙(shuang)相(xiang)組(zu)織(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)的(de)成功(gong)(gong)開(kai)(kai)發提(ti)高了(le)(le)(le)(le)(le)高鋼(gang)(gang)(gang)(gang)(gang)(gang)級管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)塑(su)性變(bian)(bian)(bian)(bian)形能力(li)，降低了(le)(le)(le)(le)(le)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)時效性能，X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)均已成功(gong)(gong)開(kai)(kai)發，通過(guo)(guo)了(le)(le)(le)(le)(le)新產(chan)品鑒定。我國(guo)(guo)西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)二(er)(er)線(xian)(xian)在(zai)特殊地段成功(gong)(gong)采(cai)用(yong)了(le)(le)(le)(le)(le)基于應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)的(de)設(she)計，并批量(liang)應(ying)(ying)(ying)(ying)用(yong)了(le)(le)(le)(le)(le)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)；在(zai)西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)二(er)(er)線(xian)(xian)工(gong)程開(kai)(kai)始前中(zhong)(zhong)(zhong)石(shi)油集(ji)團公(gong)司(si)(si)(si)(si)為(wei)滿足工(gong)程需(xu)要，組(zu)織(zhi)國(guo)(guo)內多個鋼(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠(chang)開(kai)(kai)展了(le)(le)(le)(le)(le)《西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)二(er)(er)線(xian)(xian)工(gong)程關鍵(jian)技術(shu)(shu)研(yan)(yan)究(jiu)(jiu)(jiu)》重(zhong)(zhong)大(da)(da)(da)專項一期研(yan)(yan)究(jiu)(jiu)(jiu)，先后完(wan)成了(le)(le)(le)(le)(le)直縫、螺旋和(he)彎管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件等產(chan)品研(yan)(yan)究(jiu)(jiu)(jiu)，并實(shi)現了(le)(le)(le)(le)(le)全(quan)部(bu)國(guo)(guo)產(chan)化(hua)。但西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)二(er)(er)線(xian)(xian)基于應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)設(she)計的(de)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)沒有實(shi)現國(guo)(guo)產(chan)化(hua)，全(quan)部(bu)采(cai)用(yong)的(de)日(ri)(ri)本進(jin)口(kou)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。為(wei)了(le)(le)(le)(le)(le)解(jie)決這一難題(ti)，在(zai)《西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)二(er)(er)線(xian)(xian)工(gong)程關鍵(jian)技術(shu)(shu)研(yan)(yan)究(jiu)(jiu)(jiu)》重(zhong)(zhong)大(da)(da)(da)專項二(er)(er)期研(yan)(yan)究(jiu)(jiu)(jiu)中(zhong)(zhong)(zhong)，把大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)作為(wei)研(yan)(yan)究(jiu)(jiu)(jiu)重(zhong)(zhong)點進(jin)一步開(kai)(kai)展研(yan)(yan)究(jiu)(jiu)(jiu)。經過(guo)(guo)重(zhong)(zhong)大(da)(da)(da)專項參加的(de)各鋼(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制(zhi)(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠(chang)的(de)通力(li)合(he)作，X70、X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)研(yan)(yan)究(jiu)(jiu)(jiu)成功(gong)(gong)。X70大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)于2011年(nian)9月(yue)通過(guo)(guo)了(le)(le)(le)(le)(le)中(zhong)(zhong)(zhong)國(guo)(guo)石(shi)油天(tian)然(ran)(ran)氣(qi)(qi)(qi)集(ji)團公(gong)司(si)(si)(si)(si)和(he)中(zhong)(zhong)(zhong)國(guo)(guo)鋼(gang)(gang)(gang)(gang)(gang)(gang)鐵工(gong)業協會在(zai)北(bei)京(jing)組(zu)織(zhi)的(de)鑒定。X70大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)成功(gong)(gong)應(ying)(ying)(ying)(ying)用(yong)于中(zhong)(zhong)(zhong)緬管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道，由(you)渤海裝(zhuang)備(bei)所(suo)(suo)屬巨龍(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)(si)(si)(si)、寶(bao)(bao)鋼(gang)(gang)(gang)(gang)(gang)(gang)股(gu)份有限(xian)公(gong)司(si)(si)(si)(si)和(he)寶(bao)(bao)雞鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)所(suo)(suo)屬中(zhong)(zhong)(zhong)油寶(bao)(bao)世順(shun)(shun)（秦(qin)皇島）鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)有限(xian)公(gong)司(si)(si)(si)(si)供應(ying)(ying)(ying)(ying)X70大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)共計4萬多噸，實(shi)現了(le)(le)(le)(le)(le)全(quan)面國(guo)(guo)產(chan)化(hua)，填(tian)補了(le)(le)(le)(le)(le)中(zhong)(zhong)(zhong)國(guo)(guo)X70大(da)(da)(da)變(bian)(bian)(bian)(bian)形焊管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)制(zhi)(zhi)造空白(bai)。由(you)鞍鋼(gang)(gang)(gang)(gang)(gang)(gang)、沙鋼(gang)(gang)(gang)(gang)(gang)(gang)供應(ying)(ying)(ying)(ying)鋼(gang)(gang)(gang)(gang)(gang)(gang)板(ban)，巨龍(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)(si)(si)(si)和(he)寶(bao)(bao)世順(shun)(shun)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)(si)(si)(si)研(yan)(yan)制(zhi)(zhi)的(de)X80完(wan)成了(le)(le)(le)(le)(le)千噸級試生(sheng)產(chan)，并于2012年(nian)11月(yue)通過(guo)(guo)了(le)(le)(le)(le)(le)中(zhong)(zhong)(zhong)國(guo)(guo)石(shi)油天(tian)然(ran)(ran)氣(qi)(qi)(qi)集(ji)團公(gong)司(si)(si)(si)(si)在(zai)北(bei)京(jing)組(zu)織(zhi)的(de)鑒定。標志著中(zhong)(zhong)(zhong)國(guo)(guo)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)具備(bei)了(le)(le)(le)(le)(le)批量(liang)生(sheng)產(chan)能力(li)。2012年(nian)，中(zhong)(zhong)(zhong)油寶(bao)(bao)世順(shun)(shun)（秦(qin)皇島）鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)有限(xian)公(gong)司(si)(si)(si)(si)和(he)巨龍(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)(si)(si)(si)為(wei)西(xi)(xi)氣(qi)(qi)(qi)東(dong)(dong)輸(shu)(shu)三(san)線(xian)(xian)供應(ying)(ying)(ying)(ying)X80鋼(gang)(gang)(gang)(gang)(gang)(gang)級ф1219mm×26.4mm大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，填(tian)補了(le)(le)(le)(le)(le)中(zhong)(zhong)(zhong)國(guo)(guo)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)制(zhi)(zhi)造空白(bai)。

  我(wo)國(guo)鋼(gang)(gang)管(guan)(guan)廠家也在(zai)開(kai)發(fa)高寒(han)地區(qu)K60和K65（X80）用(yong)管(guan)(guan)線鋼(gang)(gang)管(guan)(guan)，并且取(qu)得了重大進(jin)(jin)展。鋼(gang)(gang)管(guan)(guan)的(de)(de)(de)低(di)(di)溫韌性和應(ying)(ying)變性能(neng)均(jun)比較理想。正(zheng)在(zai)進(jin)(jin)行(xing)進(jin)(jin)一步(bu)的(de)(de)(de)開(kai)發(fa)。2006年原華北石油第(di)一機械廠巨龍(long)(long)鋼(gang)(gang)管(guan)(guan)首次開(kai)發(fa)符合俄羅斯標(biao)準的(de)(de)(de)輸(shu)送鋼(gang)(gang)管(guan)(guan)K60材質直縫埋(mai)(mai)弧焊(han)(han)鋼(gang)(gang)管(guan)(guan)φ1220mmx19／22／24mm，2011年，渤海裝備所屬(shu)巨龍(long)(long)鋼(gang)(gang)管(guan)(guan)公司(si)研制成(cheng)功了耐低(di)(di)溫K60直縫焊(han)(han)管(guan)(guan)、彎管(guan)(guan)和管(guan)(guan)件，并為中俄原油管(guan)(guan)道（二期）供貨(huo)彎管(guan)(guan)Φ1220mm×33mm（36根(gen)）、φ1220mm×26.4mm（2根(gen)）。巨龍(long)(long)鋼(gang)(gang)管(guan)(guan)公司(si)研制生產(chan)的(de)(de)(de)站場低(di)(di)溫環境（-45℃）用(yong)φ1422mm×30.8mm X80直縫埋(mai)(mai)弧焊(han)(han)鋼(gang)(gang)管(guan)(guan)、站場低(di)(di)溫環境（-45℃）用(yong)φ1422mm×33.8mm X80感(gan)應(ying)(ying)加熱彎管(guan)(guan)、站場低(di)(di)溫環境（-45℃）用(yong)φ1422mm×1219×80三通于2018年11月，在(zai)集團(tuan)公司(si)進(jin)(jin)行(xing)鑒定，目前具備批(pi)量生產(chan)能(neng)力。該系列產(chan)品可實現-45℃環境下的(de)(de)(de)裸露服役，從(cong)而節省(sheng)大量因保溫伴(ban)熱措(cuo)施(shi)導致(zhi)的(de)(de)(de)建設與維護費用(yong)。該系列產(chan)品代表著(zhu)當前國(guo)內油氣輸(shu)送鋼(gang)(gang)管(guan)(guan)最高水平(ping)，填(tian)補了國(guo)內空白。

  國(guo)(guo)(guo)內(nei)酸(suan)性服役環境(jing)用(yong)(yong)高(gao)等(deng)(deng)(deng)級焊(han)管(guan)(guan)(guan)起步晚，但進步很快。耐腐蝕管(guan)(guan)(guan)線鋼(gang)(gang)(gang)是輸送酸(suan)性天然(ran)氣管(guan)(guan)(guan)線的重(zhong)要(yao)(yao)用(yong)(yong)鋼(gang)(gang)(gang)，是目(mu)前管(guan)(guan)(guan)線鋼(gang)(gang)(gang)中(zhong)要(yao)(yao)求(qiu)最(zui)為嚴格、技術(shu)水平要(yao)(yao)求(qiu)最(zui)高(gao)的鋼(gang)(gang)(gang)種，是管(guan)(guan)(guan)道用(yong)(yong)鋼(gang)(gang)(gang)系列的一個重(zhong)要(yao)(yao)組成部分，是當代冶金技術(shu)和(he)(he)裝(zhuang)備(bei)水平完美結合(he)的典(dian)(dian)型(xing)產品。國(guo)(guo)(guo)內(nei)焊(han)管(guan)(guan)(guan)企業(ye)和(he)(he)冶金企業(ye)聯合(he)攻關，在冶煉純(chun)凈化、連鑄低倍控制、板(ban)(ban)材TMCP控制及耐酸(suan)焊(han)材開發(fa)(fa)等(deng)(deng)(deng)方面取得巨大(da)成就。從(cong)(cong)(cong)鋼(gang)(gang)(gang)級來(lai)(lai)看，從(cong)(cong)(cong)主要(yao)(yao)供(gong)應集輸的小(xiao)直徑(jing)X52MS逐漸發(fa)(fa)展到大(da)直徑(jing)長距離外輸用(yong)(yong)X65MS，X70MS也有(you)研(yan)發(fa)(fa)業(ye)績(ji)；從(cong)(cong)(cong)管(guan)(guan)(guan)型(xing)來(lai)(lai)看，從(cong)(cong)(cong)小(xiao)口(kou)(kou)徑(jing)無縫(feng)、HFW焊(han)管(guan)(guan)(guan)發(fa)(fa)展到大(da)口(kou)(kou)徑(jing)埋(mai)(mai)弧(hu)(hu)焊(han)管(guan)(guan)(guan)；從(cong)(cong)(cong)制管(guan)(guan)(guan)采(cai)用(yong)(yong)的原材料看，不(bu)僅(jin)有(you)螺旋管(guan)(guan)(guan)和(he)(he)HFW焊(han)管(guan)(guan)(guan)需(xu)要(yao)(yao)的熱軋(ya)卷板(ban)(ban)，也有(you)滿足大(da)口(kou)(kou)徑(jing)直縫(feng)焊(han)管(guan)(guan)(guan)的寬厚(hou)板(ban)(ban)；從(cong)(cong)(cong)供(gong)應市場來(lai)(lai)看，不(bu)僅(jin)滿足國(guo)(guo)(guo)內(nei)中(zhong)石油(you)、中(zhong)石化、中(zhong)海(hai)油(you)等(deng)(deng)(deng)需(xu)求(qiu)發(fa)(fa)展，高(gao)等(deng)(deng)(deng)級酸(suan)性環境(jing)用(yong)(yong)焊(han)管(guan)(guan)(guan)還批(pi)量(liang)出(chu)口(kou)(kou)到中(zhong)東、中(zhong)亞和(he)(he)北美等(deng)(deng)(deng)國(guo)(guo)(guo)家和(he)(he)地區；典(dian)(dian)型(xing)管(guan)(guan)(guan)廠(chang)有(you)寶(bao)鋼(gang)(gang)(gang)焊(han)管(guan)(guan)(guan)部、渤海(hai)裝(zhuang)備(bei)、寶(bao)雞鋼(gang)(gang)(gang)管(guan)(guan)(guan)、珠(zhu)江(jiang)鋼(gang)(gang)(gang)管(guan)(guan)(guan)等(deng)(deng)(deng)企業(ye)，典(dian)(dian)型(xing)工程如(ru)2004年全部采(cai)用(yong)(yong)國(guo)(guo)(guo)產X65MS直縫(feng)埋(mai)(mai)弧(hu)(hu)焊(han)管(guan)(guan)(guan)的忠-武輸氣管(guan)(guan)(guan)線工程，2015年寶(bao)鋼(gang)(gang)(gang)獨家供(gong)應2.68萬(wan)(wan)噸(dun)X65MS直縫(feng)埋(mai)(mai)弧(hu)(hu)焊(han)管(guan)(guan)(guan)的 BP KHAZZAN 1期(qi)項(xiang)目(mu)等(deng)(deng)(deng)。寶(bao)鋼(gang)(gang)(gang)股份有(you)限公司截至目(mu)前耐酸(suan)焊(han)管(guan)(guan)(guan)共(gong)(gong)計生產55萬(wan)(wan)噸(dun)，其中(zhong)埋(mai)(mai)弧(hu)(hu)焊(han)管(guan)(guan)(guan)約50萬(wan)(wan)噸(dun)，HFW焊(han)管(guan)(guan)(guan)約5萬(wan)(wan)噸(dun)；珠(zhu)江(jiang)鋼(gang)(gang)(gang)管(guan)(guan)(guan)生產的耐酸(suan)焊(han)管(guan)(guan)(guan)累計超過了(le)10萬(wan)(wan)噸(dun)；巨龍鋼(gang)(gang)(gang)管(guan)(guan)(guan)公司為土庫曼、長慶(qing)油(you)田等(deng)(deng)(deng)供(gong)貨共(gong)(gong)計3.4萬(wan)(wan)噸(dun)。