大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)技(ji)術(shu)(shu)日趨成(cheng)(cheng)熟。雙相組(zu)(zu)(zu)織(zhi)(zhi)管(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)的(de)(de)成(cheng)(cheng)功(gong)開(kai)(kai)發提高(gao)了(le)(le)高(gao)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)級(ji)(ji)管(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)的(de)(de)塑性變(bian)(bian)(bian)(bian)形能力(li)，降低了(le)(le)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)時效性能，X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)均已成(cheng)(cheng)功(gong)開(kai)(kai)發，通(tong)過了(le)(le)新產品(pin)鑒定。我國(guo)西氣(qi)東輸(shu)二(er)線(xian)(xian)在(zai)特(te)殊地段成(cheng)(cheng)功(gong)采用(yong)了(le)(le)基(ji)(ji)于(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)的(de)(de)設計(ji)，并(bing)批(pi)量(liang)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)了(le)(le)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)；在(zai)西氣(qi)東輸(shu)二(er)線(xian)(xian)工程開(kai)(kai)始前中(zhong)(zhong)石油集(ji)團公(gong)(gong)司(si)(si)(si)為(wei)滿足工程需要，組(zu)(zu)(zu)織(zhi)(zhi)國(guo)內(nei)多個鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制管(guan)(guan)(guan)廠(chang)開(kai)(kai)展了(le)(le)《西氣(qi)東輸(shu)二(er)線(xian)(xian)工程關鍵技(ji)術(shu)(shu)研(yan)(yan)究(jiu)》重(zhong)大(da)(da)(da)專(zhuan)項(xiang)一期(qi)研(yan)(yan)究(jiu)，先后完成(cheng)(cheng)了(le)(le)直縫、螺(luo)旋和(he)彎管(guan)(guan)(guan)管(guan)(guan)(guan)件等產品(pin)研(yan)(yan)究(jiu)，并(bing)實現了(le)(le)全部(bu)國(guo)產化。但西氣(qi)東輸(shu)二(er)線(xian)(xian)基(ji)(ji)于(yu)(yu)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)設計(ji)的(de)(de)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)沒有(you)實現國(guo)產化，全部(bu)采用(yong)的(de)(de)日本進口X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)。為(wei)了(le)(le)解決(jue)這(zhe)一難題，在(zai)《西氣(qi)東輸(shu)二(er)線(xian)(xian)工程關鍵技(ji)術(shu)(shu)研(yan)(yan)究(jiu)》重(zhong)大(da)(da)(da)專(zhuan)項(xiang)二(er)期(qi)研(yan)(yan)究(jiu)中(zhong)(zhong)，把(ba)大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)作為(wei)研(yan)(yan)究(jiu)重(zhong)點(dian)進一步(bu)開(kai)(kai)展研(yan)(yan)究(jiu)。經(jing)過重(zhong)大(da)(da)(da)專(zhuan)項(xiang)參加的(de)(de)各鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)和(he)制管(guan)(guan)(guan)廠(chang)的(de)(de)通(tong)力(li)合作，X70、X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)研(yan)(yan)究(jiu)成(cheng)(cheng)功(gong)。X70大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)于(yu)(yu)2011年(nian)(nian)9月通(tong)過了(le)(le)中(zhong)(zhong)國(guo)石油天然氣(qi)集(ji)團公(gong)(gong)司(si)(si)(si)和(he)中(zhong)(zhong)國(guo)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)鐵工業協會在(zai)北京組(zu)(zu)(zu)織(zhi)(zhi)的(de)(de)鑒定。X70大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)成(cheng)(cheng)功(gong)應(ying)(ying)(ying)(ying)(ying)(ying)用(yong)于(yu)(yu)中(zhong)(zhong)緬(mian)管(guan)(guan)(guan)道，由(you)渤海裝備所屬巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)、寶鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)股份有(you)限(xian)(xian)公(gong)(gong)司(si)(si)(si)和(he)寶雞鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)所屬中(zhong)(zhong)油寶世(shi)順（秦(qin)(qin)皇島）鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)有(you)限(xian)(xian)公(gong)(gong)司(si)(si)(si)供(gong)(gong)應(ying)(ying)(ying)(ying)(ying)(ying)X70大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)共計(ji)4萬多噸，實現了(le)(le)全面國(guo)產化，填補了(le)(le)中(zhong)(zhong)國(guo)X70大(da)(da)(da)變(bian)(bian)(bian)(bian)形焊管(guan)(guan)(guan)制造空(kong)白。由(you)鞍鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)、沙鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)供(gong)(gong)應(ying)(ying)(ying)(ying)(ying)(ying)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)板，巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)和(he)寶世(shi)順鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)研(yan)(yan)制的(de)(de)X80完成(cheng)(cheng)了(le)(le)千噸級(ji)(ji)試(shi)生產，并(bing)于(yu)(yu)2012年(nian)(nian)11月通(tong)過了(le)(le)中(zhong)(zhong)國(guo)石油天然氣(qi)集(ji)團公(gong)(gong)司(si)(si)(si)在(zai)北京組(zu)(zu)(zu)織(zhi)(zhi)的(de)(de)鑒定。標志著中(zhong)(zhong)國(guo)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)具備了(le)(le)批(pi)量(liang)生產能力(li)。2012年(nian)(nian)，中(zhong)(zhong)油寶世(shi)順（秦(qin)(qin)皇島）鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)有(you)限(xian)(xian)公(gong)(gong)司(si)(si)(si)和(he)巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)(gong)司(si)(si)(si)為(wei)西氣(qi)東輸(shu)三線(xian)(xian)供(gong)(gong)應(ying)(ying)(ying)(ying)(ying)(ying)X80鋼(gang)(gang)(gang)(gang)(gang)(gang)(gang)級(ji)(ji)ф1219mm×26.4mm大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)，填補了(le)(le)中(zhong)(zhong)國(guo)X80大(da)(da)(da)應(ying)(ying)(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)制造空(kong)白。

  我(wo)國鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)廠家也(ye)在開發(fa)高寒地區K60和(he)K65（X80）用管(guan)(guan)(guan)(guan)(guan)(guan)線(xian)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)，并且(qie)取得(de)了重大進展。鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)低(di)(di)溫(wen)(wen)韌(ren)性和(he)應(ying)變性能均比較理想。正在進行(xing)進一步的(de)(de)(de)開發(fa)。2006年(nian)原華北石(shi)油第一機(ji)械廠巨(ju)龍(long)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)首次開發(fa)符合俄羅斯標準的(de)(de)(de)輸(shu)(shu)送(song)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)K60材(cai)質直縫(feng)埋弧焊鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)φ1220mmx19／22／24mm，2011年(nian)，渤海(hai)裝(zhuang)備所屬巨(ju)龍(long)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)研(yan)制(zhi)成功了耐低(di)(di)溫(wen)(wen)K60直縫(feng)焊管(guan)(guan)(guan)(guan)(guan)(guan)、彎(wan)(wan)管(guan)(guan)(guan)(guan)(guan)(guan)和(he)管(guan)(guan)(guan)(guan)(guan)(guan)件，并為中俄原油管(guan)(guan)(guan)(guan)(guan)(guan)道（二(er)期）供(gong)貨彎(wan)(wan)管(guan)(guan)(guan)(guan)(guan)(guan)Φ1220mm×33mm（36根）、φ1220mm×26.4mm（2根）。巨(ju)龍(long)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)公(gong)司(si)研(yan)制(zhi)生(sheng)產(chan)的(de)(de)(de)站(zhan)場(chang)低(di)(di)溫(wen)(wen)環(huan)(huan)境（-45℃）用φ1422mm×30.8mm X80直縫(feng)埋弧焊鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)、站(zhan)場(chang)低(di)(di)溫(wen)(wen)環(huan)(huan)境（-45℃）用φ1422mm×33.8mm X80感應(ying)加熱彎(wan)(wan)管(guan)(guan)(guan)(guan)(guan)(guan)、站(zhan)場(chang)低(di)(di)溫(wen)(wen)環(huan)(huan)境（-45℃）用φ1422mm×1219×80三(san)通于2018年(nian)11月，在集團(tuan)公(gong)司(si)進行(xing)鑒定，目前具(ju)備批量生(sheng)產(chan)能力(li)。該(gai)系列產(chan)品可實現-45℃環(huan)(huan)境下的(de)(de)(de)裸露服(fu)役，從(cong)而節省大量因保溫(wen)(wen)伴熱措施導致的(de)(de)(de)建(jian)設與維護費(fei)用。該(gai)系列產(chan)品代表(biao)著當(dang)前國內油氣輸(shu)(shu)送(song)鋼(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)最高水平，填補了國內空(kong)白。

  國(guo)內酸(suan)性服(fu)役環境用高(gao)等(deng)(deng)(deng)級焊(han)(han)管(guan)(guan)(guan)起步(bu)晚(wan)，但進(jin)步(bu)很快。耐(nai)腐蝕管(guan)(guan)(guan)線(xian)鋼(gang)(gang)是(shi)輸送酸(suan)性天(tian)然氣管(guan)(guan)(guan)線(xian)的(de)(de)(de)重要(yao)用鋼(gang)(gang)，是(shi)目前管(guan)(guan)(guan)線(xian)鋼(gang)(gang)中要(yao)求(qiu)最(zui)為嚴格、技術水平要(yao)求(qiu)最(zui)高(gao)的(de)(de)(de)鋼(gang)(gang)種，是(shi)管(guan)(guan)(guan)道用鋼(gang)(gang)系(xi)列的(de)(de)(de)一個重要(yao)組成部分，是(shi)當(dang)代冶(ye)金技術和(he)裝備(bei)水平完(wan)美結合的(de)(de)(de)典(dian)(dian)型產(chan)(chan)品。國(guo)內焊(han)(han)管(guan)(guan)(guan)企業(ye)和(he)冶(ye)金企業(ye)聯合攻關，在冶(ye)煉純凈(jing)化、連鑄低倍控制、板材(cai)TMCP控制及耐(nai)酸(suan)焊(han)(han)材(cai)開(kai)發(fa)等(deng)(deng)(deng)方面取得巨大成就。從(cong)(cong)鋼(gang)(gang)級來(lai)看(kan)，從(cong)(cong)主(zhu)要(yao)供應(ying)集輸的(de)(de)(de)小直徑X52MS逐漸發(fa)展(zhan)到(dao)大直徑長(chang)距離外輸用X65MS，X70MS也(ye)有(you)(you)研(yan)發(fa)業(ye)績(ji)；從(cong)(cong)管(guan)(guan)(guan)型來(lai)看(kan)，從(cong)(cong)小口(kou)徑無縫(feng)(feng)、HFW焊(han)(han)管(guan)(guan)(guan)發(fa)展(zhan)到(dao)大口(kou)徑埋(mai)弧(hu)(hu)(hu)焊(han)(han)管(guan)(guan)(guan)；從(cong)(cong)制管(guan)(guan)(guan)采(cai)用的(de)(de)(de)原材(cai)料看(kan)，不僅(jin)(jin)有(you)(you)螺旋管(guan)(guan)(guan)和(he)HFW焊(han)(han)管(guan)(guan)(guan)需要(yao)的(de)(de)(de)熱軋(ya)卷板，也(ye)有(you)(you)滿足(zu)大口(kou)徑直縫(feng)(feng)焊(han)(han)管(guan)(guan)(guan)的(de)(de)(de)寬厚板；從(cong)(cong)供應(ying)市場來(lai)看(kan)，不僅(jin)(jin)滿足(zu)國(guo)內中石(shi)(shi)油(you)、中石(shi)(shi)化、中海(hai)油(you)等(deng)(deng)(deng)需求(qiu)發(fa)展(zhan)，高(gao)等(deng)(deng)(deng)級酸(suan)性環境用焊(han)(han)管(guan)(guan)(guan)還批(pi)量(liang)出(chu)口(kou)到(dao)中東、中亞和(he)北美等(deng)(deng)(deng)國(guo)家(jia)和(he)地(di)區；典(dian)(dian)型管(guan)(guan)(guan)廠(chang)有(you)(you)寶鋼(gang)(gang)焊(han)(han)管(guan)(guan)(guan)部、渤海(hai)裝備(bei)、寶雞鋼(gang)(gang)管(guan)(guan)(guan)、珠(zhu)江鋼(gang)(gang)管(guan)(guan)(guan)等(deng)(deng)(deng)企業(ye)，典(dian)(dian)型工程(cheng)如2004年(nian)全(quan)部采(cai)用國(guo)產(chan)(chan)X65MS直縫(feng)(feng)埋(mai)弧(hu)(hu)(hu)焊(han)(han)管(guan)(guan)(guan)的(de)(de)(de)忠-武輸氣管(guan)(guan)(guan)線(xian)工程(cheng)，2015年(nian)寶鋼(gang)(gang)獨家(jia)供應(ying)2.68萬噸(dun)(dun)(dun)X65MS直縫(feng)(feng)埋(mai)弧(hu)(hu)(hu)焊(han)(han)管(guan)(guan)(guan)的(de)(de)(de) BP KHAZZAN 1期項目等(deng)(deng)(deng)。寶鋼(gang)(gang)股份(fen)有(you)(you)限公司(si)截至目前耐(nai)酸(suan)焊(han)(han)管(guan)(guan)(guan)共(gong)計生產(chan)(chan)55萬噸(dun)(dun)(dun)，其中埋(mai)弧(hu)(hu)(hu)焊(han)(han)管(guan)(guan)(guan)約50萬噸(dun)(dun)(dun)，HFW焊(han)(han)管(guan)(guan)(guan)約5萬噸(dun)(dun)(dun)；珠(zhu)江鋼(gang)(gang)管(guan)(guan)(guan)生產(chan)(chan)的(de)(de)(de)耐(nai)酸(suan)焊(han)(han)管(guan)(guan)(guan)累計超過了10萬噸(dun)(dun)(dun)；巨龍鋼(gang)(gang)管(guan)(guan)(guan)公司(si)為土庫曼、長(chang)慶油(you)田等(deng)(deng)(deng)供貨共(gong)計3.4萬噸(dun)(dun)(dun)。