大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)技術(shu)日(ri)趨成(cheng)熟(shu)。雙相組(zu)(zu)織(zhi)(zhi)管(guan)(guan)(guan)(guan)線(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)的(de)成(cheng)功開(kai)發提高(gao)了(le)(le)(le)(le)高(gao)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)級(ji)管(guan)(guan)(guan)(guan)線(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)的(de)塑性變(bian)(bian)(bian)形(xing)能力，降低(di)了(le)(le)(le)(le)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)時效性能，X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)均已(yi)成(cheng)功開(kai)發，通(tong)過了(le)(le)(le)(le)新產品鑒(jian)定(ding)。我國(guo)西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)二(er)(er)線(xian)在特殊地段(duan)成(cheng)功采用(yong)了(le)(le)(le)(le)基(ji)于(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)的(de)設計，并批(pi)量應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)了(le)(le)(le)(le)X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)；在西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)二(er)(er)線(xian)工(gong)(gong)程(cheng)開(kai)始前中(zhong)(zhong)(zhong)(zhong)石(shi)油集(ji)團(tuan)公(gong)(gong)司(si)(si)(si)(si)為滿(man)足工(gong)(gong)程(cheng)需(xu)要，組(zu)(zu)織(zhi)(zhi)國(guo)內多(duo)個鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制(zhi)(zhi)管(guan)(guan)(guan)(guan)廠(chang)開(kai)展(zhan)了(le)(le)(le)(le)《西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)二(er)(er)線(xian)工(gong)(gong)程(cheng)關(guan)(guan)鍵(jian)技術(shu)研(yan)究(jiu)(jiu)》重大(da)(da)專(zhuan)項一期研(yan)究(jiu)(jiu)，先(xian)后完成(cheng)了(le)(le)(le)(le)直縫、螺旋和(he)彎(wan)管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)件(jian)等產品研(yan)究(jiu)(jiu)，并實(shi)現了(le)(le)(le)(le)全部(bu)(bu)國(guo)產化(hua)。但西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)二(er)(er)線(xian)基(ji)于(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)設計的(de)X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)沒有(you)實(shi)現國(guo)產化(hua)，全部(bu)(bu)采用(yong)的(de)日(ri)本進(jin)口X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)。為了(le)(le)(le)(le)解決(jue)這(zhe)一難題，在《西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)二(er)(er)線(xian)工(gong)(gong)程(cheng)關(guan)(guan)鍵(jian)技術(shu)研(yan)究(jiu)(jiu)》重大(da)(da)專(zhuan)項二(er)(er)期研(yan)究(jiu)(jiu)中(zhong)(zhong)(zhong)(zhong)，把大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)作為研(yan)究(jiu)(jiu)重點進(jin)一步開(kai)展(zhan)研(yan)究(jiu)(jiu)。經過重大(da)(da)專(zhuan)項參加(jia)的(de)各鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制(zhi)(zhi)管(guan)(guan)(guan)(guan)廠(chang)的(de)通(tong)力合(he)作，X70、X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)研(yan)究(jiu)(jiu)成(cheng)功。X70大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)于(yu)(yu)2011年9月(yue)通(tong)過了(le)(le)(le)(le)中(zhong)(zhong)(zhong)(zhong)國(guo)石(shi)油天然(ran)(ran)氣(qi)(qi)(qi)(qi)集(ji)團(tuan)公(gong)(gong)司(si)(si)(si)(si)和(he)中(zhong)(zhong)(zhong)(zhong)國(guo)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)鐵工(gong)(gong)業協會在北京組(zu)(zu)織(zhi)(zhi)的(de)鑒(jian)定(ding)。X70大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)成(cheng)功應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)于(yu)(yu)中(zhong)(zhong)(zhong)(zhong)緬(mian)管(guan)(guan)(guan)(guan)道，由渤海裝備所屬巨(ju)(ju)龍鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)(si)、寶(bao)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)股(gu)份有(you)限(xian)公(gong)(gong)司(si)(si)(si)(si)和(he)寶(bao)雞鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)所屬中(zhong)(zhong)(zhong)(zhong)油寶(bao)世順（秦皇島(dao)）鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)有(you)限(xian)公(gong)(gong)司(si)(si)(si)(si)供應(ying)(ying)(ying)(ying)(ying)(ying)X70大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)共計4萬多(duo)噸，實(shi)現了(le)(le)(le)(le)全面國(guo)產化(hua)，填補(bu)了(le)(le)(le)(le)中(zhong)(zhong)(zhong)(zhong)國(guo)X70大(da)(da)變(bian)(bian)(bian)形(xing)焊管(guan)(guan)(guan)(guan)制(zhi)(zhi)造(zao)空白。由鞍鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)、沙鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)供應(ying)(ying)(ying)(ying)(ying)(ying)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)板(ban)，巨(ju)(ju)龍鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)(si)和(he)寶(bao)世順鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)(si)研(yan)制(zhi)(zhi)的(de)X80完成(cheng)了(le)(le)(le)(le)千噸級(ji)試生產，并于(yu)(yu)2012年11月(yue)通(tong)過了(le)(le)(le)(le)中(zhong)(zhong)(zhong)(zhong)國(guo)石(shi)油天然(ran)(ran)氣(qi)(qi)(qi)(qi)集(ji)團(tuan)公(gong)(gong)司(si)(si)(si)(si)在北京組(zu)(zu)織(zhi)(zhi)的(de)鑒(jian)定(ding)。標志著中(zhong)(zhong)(zhong)(zhong)國(guo)X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)具備了(le)(le)(le)(le)批(pi)量生產能力。2012年，中(zhong)(zhong)(zhong)(zhong)油寶(bao)世順（秦皇島(dao)）鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)有(you)限(xian)公(gong)(gong)司(si)(si)(si)(si)和(he)巨(ju)(ju)龍鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)(si)為西(xi)氣(qi)(qi)(qi)(qi)東(dong)輸(shu)三線(xian)供應(ying)(ying)(ying)(ying)(ying)(ying)X80鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)級(ji)ф1219mm×26.4mm大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)焊管(guan)(guan)(guan)(guan)，填補(bu)了(le)(le)(le)(le)中(zhong)(zhong)(zhong)(zhong)國(guo)X80大(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)焊管(guan)(guan)(guan)(guan)制(zhi)(zhi)造(zao)空白。

  我(wo)國鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)廠(chang)家也在開發(fa)高寒(han)地區K60和(he)K65（X80）用(yong)管(guan)(guan)(guan)(guan)(guan)(guan)線鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，并且取得了(le)重大進(jin)(jin)展。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)低(di)溫韌性(xing)和(he)應(ying)變(bian)性(xing)能(neng)均比(bi)較理想。正在進(jin)(jin)行進(jin)(jin)一步的(de)(de)(de)(de)(de)開發(fa)。2006年原華北石(shi)油第(di)一機械(xie)廠(chang)巨(ju)龍(long)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)首次開發(fa)符合俄(e)羅斯(si)標準的(de)(de)(de)(de)(de)輸送鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)K60材質直縫埋弧(hu)焊鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)φ1220mmx19／22／24mm，2011年，渤海裝備所屬巨(ju)龍(long)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公司(si)(si)研制(zhi)成功了(le)耐低(di)溫K60直縫焊管(guan)(guan)(guan)(guan)(guan)(guan)、彎管(guan)(guan)(guan)(guan)(guan)(guan)和(he)管(guan)(guan)(guan)(guan)(guan)(guan)件(jian)，并為(wei)中俄(e)原油管(guan)(guan)(guan)(guan)(guan)(guan)道（二期）供貨(huo)彎管(guan)(guan)(guan)(guan)(guan)(guan)Φ1220mm×33mm（36根(gen)(gen)）、φ1220mm×26.4mm（2根(gen)(gen)）。巨(ju)龍(long)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公司(si)(si)研制(zhi)生產(chan)的(de)(de)(de)(de)(de)站(zhan)場(chang)低(di)溫環(huan)境(jing)（-45℃）用(yong)φ1422mm×30.8mm X80直縫埋弧(hu)焊鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、站(zhan)場(chang)低(di)溫環(huan)境(jing)（-45℃）用(yong)φ1422mm×33.8mm X80感應(ying)加熱彎管(guan)(guan)(guan)(guan)(guan)(guan)、站(zhan)場(chang)低(di)溫環(huan)境(jing)（-45℃）用(yong)φ1422mm×1219×80三通于2018年11月，在集(ji)團公司(si)(si)進(jin)(jin)行鑒定，目前(qian)具備批(pi)量(liang)生產(chan)能(neng)力(li)。該系列(lie)產(chan)品可(ke)實現-45℃環(huan)境(jing)下的(de)(de)(de)(de)(de)裸(luo)露服役，從而(er)節省大量(liang)因(yin)保溫伴熱措施導致的(de)(de)(de)(de)(de)建設與維(wei)護費用(yong)。該系列(lie)產(chan)品代表(biao)著當前(qian)國內(nei)油氣(qi)輸送鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)最高水平，填補了(le)國內(nei)空白。

  國內酸性服(fu)役(yi)環(huan)境用(yong)(yong)高(gao)等級(ji)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)起步(bu)晚，但進步(bu)很(hen)快(kuai)。耐(nai)腐(fu)蝕管(guan)(guan)(guan)(guan)(guan)(guan)線鋼(gang)是輸(shu)(shu)送酸性天然氣管(guan)(guan)(guan)(guan)(guan)(guan)線的(de)(de)(de)(de)重(zhong)要(yao)(yao)用(yong)(yong)鋼(gang)，是目(mu)前(qian)管(guan)(guan)(guan)(guan)(guan)(guan)線鋼(gang)中(zhong)要(yao)(yao)求(qiu)最(zui)為嚴格(ge)、技(ji)術水(shui)平要(yao)(yao)求(qiu)最(zui)高(gao)的(de)(de)(de)(de)鋼(gang)種，是管(guan)(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)鋼(gang)系列的(de)(de)(de)(de)一(yi)個重(zhong)要(yao)(yao)組成部分(fen)，是當代冶(ye)金技(ji)術和裝備水(shui)平完美結合的(de)(de)(de)(de)典型(xing)產品。國內焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)企業(ye)和冶(ye)金企業(ye)聯合攻關，在冶(ye)煉純凈化、連鑄低倍控制(zhi)、板(ban)材(cai)(cai)TMCP控制(zhi)及耐(nai)酸焊(han)(han)(han)(han)材(cai)(cai)開發等方面取得(de)巨(ju)大(da)成就(jiu)。從(cong)(cong)鋼(gang)級(ji)來看(kan)，從(cong)(cong)主要(yao)(yao)供應集(ji)輸(shu)(shu)的(de)(de)(de)(de)小(xiao)直(zhi)徑(jing)X52MS逐漸發展到(dao)大(da)直(zhi)徑(jing)長距(ju)離外輸(shu)(shu)用(yong)(yong)X65MS，X70MS也有(you)(you)研發業(ye)績；從(cong)(cong)管(guan)(guan)(guan)(guan)(guan)(guan)型(xing)來看(kan)，從(cong)(cong)小(xiao)口(kou)徑(jing)無(wu)縫、HFW焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)發展到(dao)大(da)口(kou)徑(jing)埋(mai)弧(hu)(hu)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)；從(cong)(cong)制(zhi)管(guan)(guan)(guan)(guan)(guan)(guan)采用(yong)(yong)的(de)(de)(de)(de)原材(cai)(cai)料(liao)看(kan)，不僅有(you)(you)螺旋(xuan)管(guan)(guan)(guan)(guan)(guan)(guan)和HFW焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)需要(yao)(yao)的(de)(de)(de)(de)熱軋卷板(ban)，也有(you)(you)滿足(zu)大(da)口(kou)徑(jing)直(zhi)縫焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)寬厚(hou)板(ban)；從(cong)(cong)供應市場來看(kan)，不僅滿足(zu)國內中(zhong)石(shi)油、中(zhong)石(shi)化、中(zhong)海(hai)油等需求(qiu)發展，高(gao)等級(ji)酸性環(huan)境用(yong)(yong)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)還批量出(chu)口(kou)到(dao)中(zhong)東、中(zhong)亞和北美等國家和地區；典型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)廠有(you)(you)寶(bao)鋼(gang)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)部、渤海(hai)裝備、寶(bao)雞鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、珠江鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)等企業(ye)，典型(xing)工(gong)程如(ru)2004年(nian)全部采用(yong)(yong)國產X65MS直(zhi)縫埋(mai)弧(hu)(hu)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)忠-武輸(shu)(shu)氣管(guan)(guan)(guan)(guan)(guan)(guan)線工(gong)程，2015年(nian)寶(bao)鋼(gang)獨(du)家供應2.68萬(wan)(wan)噸(dun)X65MS直(zhi)縫埋(mai)弧(hu)(hu)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de) BP KHAZZAN 1期項(xiang)目(mu)等。寶(bao)鋼(gang)股份(fen)有(you)(you)限公(gong)司截至目(mu)前(qian)耐(nai)酸焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)共計生(sheng)產55萬(wan)(wan)噸(dun)，其中(zhong)埋(mai)弧(hu)(hu)焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)約50萬(wan)(wan)噸(dun)，HFW焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)約5萬(wan)(wan)噸(dun)；珠江鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)生(sheng)產的(de)(de)(de)(de)耐(nai)酸焊(han)(han)(han)(han)管(guan)(guan)(guan)(guan)(guan)(guan)累(lei)計超過(guo)了(le)10萬(wan)(wan)噸(dun)；巨(ju)龍鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司為土(tu)庫曼、長慶油田(tian)等供貨共計3.4萬(wan)(wan)噸(dun)。