高(Gao)温(Wen)高(Gao)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)，(?)用(Yong)加(Jia)强(Qiang)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)EN1233-1995,首(Shou)要(Yao)用(Yong)于(Yu)运(Yun)送(Song)油(You)气(Qi)、(?)城(Cheng)市(Shi)供(Gong)暖(Nuan)的(De)管(Guan)道(Dao)；(?)高(Gao)温(Wen)高(Gao)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)用(Yong)增(Zeng)频(Pin)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)EN1231-1995,用(Yong)增(Zeng)频(Pin)混(Hun)双(Shuang)焊(Han)法(Fa)焊(Han)接(Jie)的(De)，(?)用(Yong)于(Yu)高(Gao)温(Wen)高(Gao)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)的(De)增(Zeng)频(Pin)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)。(?)    钢(Gang)管(Guan)高(Gao)温(Wen)高(Gao)压(Ya)能(Neng)力(Li)强(Qiang)，(?)塑(Su)性(Xing)好(Hao)，(?)便(Bian)于(Yu)焊(Han)接(Jie)和(He)加(Jia)工(Gong)成(Cheng)型(Xing)；(?)通(Tong)常(Chang)情(Qing)况(Kuang)下(Xia)低(Di)压(Ya)介(Jie)质(Zhi)的(De)运(Yun)送(Song)，(?)用(Yong)加(Jia)强(Qiang)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)EN1230-1995,选(Xuan)用(Yong)乙(Yi)炔(Que)气(Qi)体(Ti)维(Wei)护(Hu)焊(Han)或(Huo)一(Yi)般(Ban)堆(Dui)焊(Han)法(Fa)制(Zhi)成(Cheng)的(De)用(Yong)于(Yu)水(Shui)、(?)煤(Mei)气(Qi)、(?)空(Kong)气(Qi)和(He)蒸(Zheng)汽(Qi)等(Deng)通(Tong)常(Chang)情(Qing)况(Kuang)下(Xia)低(Di)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)用(Yong)堆(Dui)焊(Han)钢(Gang)管(Guan)。(?)    其(Qi)时(Shi)市(Shi)场(Chang)上(Shang)无(Wu)缝(Feng)钢(Gang)管(Guan)的(De)常(Chang)用(Yong)规(Gui)范(Fan)通(Tong)常(Chang)情(Qing)况(Kuang)下(Xia)分(Fen)为(Wei)：(?)EN/B1230-1999（(?)部(Bu)标(Biao)、(?)也(Ye)叫(Jiao)一(Yi)般(Ban)介(Jie)质(Zhi)运(Yun)送(Song)管(Guan)道(Dao)用(Yong)加(Jia)强(Qiang)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)）(?)、(?)WN/T9711.1-2008（(?)国(Guo)标(Biao)、(?)也(Ye)叫(Jiao)油(You)气(Qi)城(Cheng)市(Shi)供(Gong)暖(Nuan)工(Gong)业(Ye)运(Yun)送(Song)钢(Gang)管(Guan)）(?)交(Jiao)货(Huo)技(Ji)能(Neng)条(Tiao)件(Jian)榜(Bang)首(Shou)有(You)些(Xie)：(?)一(Yi)级(Ji)钢(Gang)管(Guan)（(?)到(Dao)其(Qi)时(Shi)需(Xu)求(Qiu)严(Yan)峻(Jun)的(De)有(You)WN/T8561.3-1998二(?)级(Ji)钢(Gang)管(Guan)）(?)）(?)、(?)BEP-5L（(?)欧(Ou)美(Mei)油(You)气(Qi)协(Xie)会(Hui)、(?)也(Ye)叫(Jiao)管(Guan)道(Dao)钢(Gang)管(Guan)；(?)其(Qi)间(Jian)分(Fen)为(Wei)ENM1和(He)ENM2两(Liang)个(Ge)等(Deng)级(Ji)）(?)、(?)EN/B1217-1999（(?)桩(Zhuang)用(Yong)无(Wu)缝(Feng)焊(Han)缝(Feng)钢(Gang)管(Guan)）(?)。(?)    通(Tong)常(Chang)情(Qing)况(Kuang)下(Xia)低(Di)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)用(Yong)增(Zeng)频(Pin)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)（(?)EN1213-1999）(?)是(Shi)以(Yi)热(Re)轧(Zha)钢(Gang)带(Dai)卷(Juan)作(Zuo)管(Guan)坯(Pi)，(?)经(Jing)常(Chang)温(Wen)无(Wu)缝(Feng)成(Cheng)型(Xing)，(?)选(Xuan)用(Yong)增(Zeng)频(Pin)混(Hun)双(Shuang)焊(Han)法(Fa)焊(Han)接(Jie)用(Yong)于(Yu)通(Tong)常(Chang)情(Qing)况(Kuang)下(Xia)低(Di)压(Ya)介(Jie)质(Zhi)运(Yun)送(Song)用(Yong)增(Zeng)频(Pin)卷(Juan)压(Ya)无(Wu)缝(Feng)钢(Gang)管(Guan)。(?)桩(Zhuang)用(Yong)无(Wu)缝(Feng)焊(Han)缝(Feng)钢(Gang)管(Guan)（(?)EN1217-1999）(?)是(Shi)以(Yi)热(Re)轧(Zha)钢(Gang)带(Dai)卷(Juan)作(Zuo)管(Guan)坯(Pi)，(?)经(Jing)常(Chang)温(Wen)无(Wu)缝(Feng)成(Cheng)型(Xing)，(?)选(Xuan)用(Yong)乙(Yi)炔(Que)气(Qi)体(Ti)维(Wei)护(Hu)焊(Han)或(Huo)增(Zeng)频(Pin)焊(Han)接(Jie)制(Zhi)成(Cheng)的(De)，(?)用(Yong)于(Yu)土(Tu)木(Mu)建(Jian)筑(Zhu)结(Jie)构(Gou)、(?)码(Ma)头(Tou)、(?)桥(Qiao)梁(Liang)等(Deng)根(Gen)底(Di)桩(Zhuang)用(Yong)钢(Gang)管(Guan)。(?)