大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)技術(shu)日(ri)趨(qu)成(cheng)(cheng)熟。雙相組織(zhi)管(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)的(de)成(cheng)(cheng)功(gong)(gong)開發(fa)提高了(le)(le)(le)(le)高鋼(gang)(gang)(gang)(gang)(gang)(gang)級管(guan)(guan)(guan)線(xian)(xian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)的(de)塑性變(bian)(bian)(bian)(bian)形能(neng)力(li)，降低了(le)(le)(le)(le)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)時效性能(neng)，X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)均已成(cheng)(cheng)功(gong)(gong)開發(fa)，通過(guo)了(le)(le)(le)(le)新產品鑒(jian)定。我國(guo)(guo)(guo)(guo)西(xi)氣東(dong)(dong)輸(shu)二(er)線(xian)(xian)在(zai)特殊地(di)段(duan)成(cheng)(cheng)功(gong)(gong)采用了(le)(le)(le)(le)基于(yu)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)的(de)設(she)(she)計(ji)(ji)，并批(pi)量應(ying)(ying)(ying)(ying)用了(le)(le)(le)(le)X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)；在(zai)西(xi)氣東(dong)(dong)輸(shu)二(er)線(xian)(xian)工(gong)(gong)程(cheng)(cheng)開始前中(zhong)(zhong)石油(you)(you)集(ji)團公(gong)司(si)為(wei)滿(man)足工(gong)(gong)程(cheng)(cheng)需要，組織(zhi)國(guo)(guo)(guo)(guo)內(nei)多個(ge)鋼(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)(chang)和制(zhi)(zhi)管(guan)(guan)(guan)廠(chang)(chang)開展了(le)(le)(le)(le)《西(xi)氣東(dong)(dong)輸(shu)二(er)線(xian)(xian)工(gong)(gong)程(cheng)(cheng)關(guan)鍵技術(shu)研(yan)究(jiu)(jiu)(jiu)》重(zhong)大(da)(da)專項一(yi)期(qi)研(yan)究(jiu)(jiu)(jiu)，先(xian)后完成(cheng)(cheng)了(le)(le)(le)(le)直縫、螺旋(xuan)和彎管(guan)(guan)(guan)管(guan)(guan)(guan)件(jian)等產品研(yan)究(jiu)(jiu)(jiu)，并實(shi)(shi)現了(le)(le)(le)(le)全(quan)部國(guo)(guo)(guo)(guo)產化。但西(xi)氣東(dong)(dong)輸(shu)二(er)線(xian)(xian)基于(yu)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)設(she)(she)計(ji)(ji)的(de)X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)沒有(you)實(shi)(shi)現國(guo)(guo)(guo)(guo)產化，全(quan)部采用的(de)日(ri)本進口X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)。為(wei)了(le)(le)(le)(le)解(jie)決這一(yi)難題，在(zai)《西(xi)氣東(dong)(dong)輸(shu)二(er)線(xian)(xian)工(gong)(gong)程(cheng)(cheng)關(guan)鍵技術(shu)研(yan)究(jiu)(jiu)(jiu)》重(zhong)大(da)(da)專項二(er)期(qi)研(yan)究(jiu)(jiu)(jiu)中(zhong)(zhong)，把大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)作為(wei)研(yan)究(jiu)(jiu)(jiu)重(zhong)點(dian)進一(yi)步開展研(yan)究(jiu)(jiu)(jiu)。經(jing)過(guo)重(zhong)大(da)(da)專項參加的(de)各鋼(gang)(gang)(gang)(gang)(gang)(gang)廠(chang)(chang)和制(zhi)(zhi)管(guan)(guan)(guan)廠(chang)(chang)的(de)通力(li)合作，X70、X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)研(yan)究(jiu)(jiu)(jiu)成(cheng)(cheng)功(gong)(gong)。X70大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)于(yu)2011年(nian)(nian)9月通過(guo)了(le)(le)(le)(le)中(zhong)(zhong)國(guo)(guo)(guo)(guo)石油(you)(you)天(tian)然氣集(ji)團公(gong)司(si)和中(zhong)(zhong)國(guo)(guo)(guo)(guo)鋼(gang)(gang)(gang)(gang)(gang)(gang)鐵工(gong)(gong)業協會在(zai)北京組織(zhi)的(de)鑒(jian)定。X70大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)成(cheng)(cheng)功(gong)(gong)應(ying)(ying)(ying)(ying)用于(yu)中(zhong)(zhong)緬管(guan)(guan)(guan)道，由(you)渤海裝備所(suo)屬巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)司(si)、寶(bao)鋼(gang)(gang)(gang)(gang)(gang)(gang)股份(fen)有(you)限(xian)公(gong)司(si)和寶(bao)雞鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)所(suo)屬中(zhong)(zhong)油(you)(you)寶(bao)世順（秦(qin)皇(huang)島）鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)有(you)限(xian)公(gong)司(si)供應(ying)(ying)(ying)(ying)X70大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)共(gong)計(ji)(ji)4萬多噸，實(shi)(shi)現了(le)(le)(le)(le)全(quan)面(mian)國(guo)(guo)(guo)(guo)產化，填(tian)補了(le)(le)(le)(le)中(zhong)(zhong)國(guo)(guo)(guo)(guo)X70大(da)(da)變(bian)(bian)(bian)(bian)形焊管(guan)(guan)(guan)制(zhi)(zhi)造空白(bai)(bai)。由(you)鞍鋼(gang)(gang)(gang)(gang)(gang)(gang)、沙(sha)鋼(gang)(gang)(gang)(gang)(gang)(gang)供應(ying)(ying)(ying)(ying)鋼(gang)(gang)(gang)(gang)(gang)(gang)板，巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)司(si)和寶(bao)世順鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)司(si)研(yan)制(zhi)(zhi)的(de)X80完成(cheng)(cheng)了(le)(le)(le)(le)千噸級試(shi)生產，并于(yu)2012年(nian)(nian)11月通過(guo)了(le)(le)(le)(le)中(zhong)(zhong)國(guo)(guo)(guo)(guo)石油(you)(you)天(tian)然氣集(ji)團公(gong)司(si)在(zai)北京組織(zhi)的(de)鑒(jian)定。標(biao)志著中(zhong)(zhong)國(guo)(guo)(guo)(guo)X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)具備了(le)(le)(le)(le)批(pi)量生產能(neng)力(li)。2012年(nian)(nian)，中(zhong)(zhong)油(you)(you)寶(bao)世順（秦(qin)皇(huang)島）鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)有(you)限(xian)公(gong)司(si)和巨(ju)龍(long)(long)鋼(gang)(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)公(gong)司(si)為(wei)西(xi)氣東(dong)(dong)輸(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)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)，填(tian)補了(le)(le)(le)(le)中(zhong)(zhong)國(guo)(guo)(guo)(guo)X80大(da)(da)應(ying)(ying)(ying)(ying)變(bian)(bian)(bian)(bian)焊管(guan)(guan)(guan)制(zhi)(zhi)造空白(bai)(bai)。

  我(wo)國(guo)鋼(gang)(gang)管(guan)(guan)廠家也在(zai)(zai)開(kai)發(fa)高(gao)寒地區K60和K65（X80）用(yong)管(guan)(guan)線(xian)鋼(gang)(gang)管(guan)(guan)，并(bing)且取(qu)得了重大進(jin)展(zhan)。鋼(gang)(gang)管(guan)(guan)的(de)低(di)溫(wen)韌性和應變性能均比較理想(xiang)。正在(zai)(zai)進(jin)行(xing)進(jin)一(yi)步的(de)開(kai)發(fa)。2006年原(yuan)(yuan)華北石油(you)(you)第一(yi)機械廠巨(ju)(ju)龍鋼(gang)(gang)管(guan)(guan)首(shou)次開(kai)發(fa)符合俄(e)羅(luo)斯標準的(de)輸(shu)送(song)鋼(gang)(gang)管(guan)(guan)K60材質直(zhi)縫埋(mai)弧焊鋼(gang)(gang)管(guan)(guan)φ1220mmx19／22／24mm，2011年，渤海裝(zhuang)備所(suo)屬巨(ju)(ju)龍鋼(gang)(gang)管(guan)(guan)公司(si)研制成功(gong)了耐低(di)溫(wen)K60直(zhi)縫焊管(guan)(guan)、彎(wan)管(guan)(guan)和管(guan)(guan)件，并(bing)為中俄(e)原(yuan)(yuan)油(you)(you)管(guan)(guan)道（二(er)期）供貨(huo)彎(wan)管(guan)(guan)Φ1220mm×33mm（36根）、φ1220mm×26.4mm（2根）。巨(ju)(ju)龍鋼(gang)(gang)管(guan)(guan)公司(si)研制生產的(de)站(zhan)場(chang)低(di)溫(wen)環(huan)境(jing)（-45℃）用(yong)φ1422mm×30.8mm X80直(zhi)縫埋(mai)弧焊鋼(gang)(gang)管(guan)(guan)、站(zhan)場(chang)低(di)溫(wen)環(huan)境(jing)（-45℃）用(yong)φ1422mm×33.8mm X80感應加熱彎(wan)管(guan)(guan)、站(zhan)場(chang)低(di)溫(wen)環(huan)境(jing)（-45℃）用(yong)φ1422mm×1219×80三通(tong)于2018年11月(yue)，在(zai)(zai)集團公司(si)進(jin)行(xing)鑒定，目前具備批量(liang)生產能力。該系列(lie)產品可實現-45℃環(huan)境(jing)下的(de)裸露服(fu)役，從而節省大量(liang)因(yin)保溫(wen)伴熱措施導致的(de)建(jian)設(she)與(yu)維(wei)護費(fei)用(yong)。該系列(lie)產品代表著當前國(guo)內油(you)(you)氣輸(shu)送(song)鋼(gang)(gang)管(guan)(guan)最高(gao)水(shui)平(ping)，填補了國(guo)內空(kong)白。

  國(guo)內(nei)(nei)酸(suan)性服(fu)役環境用(yong)(yong)高等(deng)(deng)級(ji)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)起步(bu)晚，但(dan)進步(bu)很快。耐(nai)腐蝕管(guan)(guan)(guan)(guan)(guan)線(xian)鋼(gang)是(shi)輸(shu)送酸(suan)性天(tian)然氣管(guan)(guan)(guan)(guan)(guan)線(xian)的(de)(de)(de)(de)重要(yao)(yao)用(yong)(yong)鋼(gang)，是(shi)目前管(guan)(guan)(guan)(guan)(guan)線(xian)鋼(gang)中(zhong)(zhong)要(yao)(yao)求最(zui)為(wei)嚴格、技術(shu)水平要(yao)(yao)求最(zui)高的(de)(de)(de)(de)鋼(gang)種(zhong)，是(shi)管(guan)(guan)(guan)(guan)(guan)道用(yong)(yong)鋼(gang)系(xi)列的(de)(de)(de)(de)一(yi)個重要(yao)(yao)組成部(bu)分，是(shi)當代(dai)冶金技術(shu)和(he)裝備(bei)水平完美結合(he)的(de)(de)(de)(de)典型(xing)產(chan)(chan)品(pin)。國(guo)內(nei)(nei)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)企(qi)(qi)業和(he)冶金企(qi)(qi)業聯合(he)攻關，在冶煉純凈化、連鑄低倍(bei)控制、板(ban)材(cai)TMCP控制及耐(nai)酸(suan)焊(han)(han)材(cai)開發(fa)(fa)等(deng)(deng)方面取得巨(ju)大(da)成就。從(cong)(cong)(cong)鋼(gang)級(ji)來(lai)看，從(cong)(cong)(cong)主要(yao)(yao)供應(ying)(ying)集輸(shu)的(de)(de)(de)(de)小直徑(jing)X52MS逐漸發(fa)(fa)展(zhan)到(dao)大(da)直徑(jing)長距(ju)離外輸(shu)用(yong)(yong)X65MS，X70MS也有(you)研發(fa)(fa)業績；從(cong)(cong)(cong)管(guan)(guan)(guan)(guan)(guan)型(xing)來(lai)看，從(cong)(cong)(cong)小口(kou)徑(jing)無縫、HFW焊(han)(han)管(guan)(guan)(guan)(guan)(guan)發(fa)(fa)展(zhan)到(dao)大(da)口(kou)徑(jing)埋(mai)弧(hu)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)；從(cong)(cong)(cong)制管(guan)(guan)(guan)(guan)(guan)采(cai)用(yong)(yong)的(de)(de)(de)(de)原材(cai)料看，不(bu)僅(jin)有(you)螺旋管(guan)(guan)(guan)(guan)(guan)和(he)HFW焊(han)(han)管(guan)(guan)(guan)(guan)(guan)需要(yao)(yao)的(de)(de)(de)(de)熱軋卷板(ban)，也有(you)滿足大(da)口(kou)徑(jing)直縫焊(han)(han)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)寬厚板(ban)；從(cong)(cong)(cong)供應(ying)(ying)市場(chang)來(lai)看，不(bu)僅(jin)滿足國(guo)內(nei)(nei)中(zhong)(zhong)石(shi)油(you)(you)、中(zhong)(zhong)石(shi)化、中(zhong)(zhong)海油(you)(you)等(deng)(deng)需求發(fa)(fa)展(zhan)，高等(deng)(deng)級(ji)酸(suan)性環境用(yong)(yong)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)還批量出口(kou)到(dao)中(zhong)(zhong)東、中(zhong)(zhong)亞(ya)和(he)北美等(deng)(deng)國(guo)家(jia)和(he)地區；典型(xing)管(guan)(guan)(guan)(guan)(guan)廠有(you)寶鋼(gang)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)部(bu)、渤(bo)海裝備(bei)、寶雞鋼(gang)管(guan)(guan)(guan)(guan)(guan)、珠江(jiang)(jiang)鋼(gang)管(guan)(guan)(guan)(guan)(guan)等(deng)(deng)企(qi)(qi)業，典型(xing)工程如2004年全部(bu)采(cai)用(yong)(yong)國(guo)產(chan)(chan)X65MS直縫埋(mai)弧(hu)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)忠-武輸(shu)氣管(guan)(guan)(guan)(guan)(guan)線(xian)工程，2015年寶鋼(gang)獨家(jia)供應(ying)(ying)2.68萬(wan)噸X65MS直縫埋(mai)弧(hu)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de) BP KHAZZAN 1期項(xiang)目等(deng)(deng)。寶鋼(gang)股份有(you)限公司截至目前耐(nai)酸(suan)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)共計(ji)生(sheng)產(chan)(chan)55萬(wan)噸，其中(zhong)(zhong)埋(mai)弧(hu)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)約(yue)50萬(wan)噸，HFW焊(han)(han)管(guan)(guan)(guan)(guan)(guan)約(yue)5萬(wan)噸；珠江(jiang)(jiang)鋼(gang)管(guan)(guan)(guan)(guan)(guan)生(sheng)產(chan)(chan)的(de)(de)(de)(de)耐(nai)酸(suan)焊(han)(han)管(guan)(guan)(guan)(guan)(guan)累計(ji)超過了10萬(wan)噸；巨(ju)龍(long)鋼(gang)管(guan)(guan)(guan)(guan)(guan)公司為(wei)土(tu)庫曼(man)、長慶油(you)(you)田等(deng)(deng)供貨共計(ji)3.4萬(wan)噸。