焊管
銲管
한관
WELDED PIPE AND TUBE
2015年
7期
11-16
,共6页
牛爱军%毕宗岳%牛辉%黄晓辉%张阿昱
牛愛軍%畢宗嶽%牛輝%黃曉輝%張阿昱
우애군%필종악%우휘%황효휘%장아욱
焊管%深海管线%X70钢%厚壁%直缝埋弧焊管%力学性能%低温韧性
銲管%深海管線%X70鋼%厚壁%直縫埋弧銲管%力學性能%低溫韌性
한관%심해관선%X70강%후벽%직봉매호한관%역학성능%저온인성
welded pipe%deep-sea pipeline%X70 steel%heavy wall thickness%SAWL pipe%mechanical properties%low temper-
对深海管线用钢管的研制背景及技术目标进行了详细阐述。通过采用低C高Mn-Nb-Ti合金化的成分设计和合理的TMCP工艺控制，开发出具有高强度、低屈强比和优异低温韧性良好匹配的X70级36.5 mm厚壁管线钢。采用JCOE制管工艺试制的X70级准914 mm×36.5 mm直缝埋弧焊管，其管体及焊接接头的拉伸性能、断裂韧性及硬度等指标全部满足DNV-OS-F101标准要求，主要性能指标达到了研制技术目标要求。
對深海管線用鋼管的研製揹景及技術目標進行瞭詳細闡述。通過採用低C高Mn-Nb-Ti閤金化的成分設計和閤理的TMCP工藝控製，開髮齣具有高彊度、低屈彊比和優異低溫韌性良好匹配的X70級36.5 mm厚壁管線鋼。採用JCOE製管工藝試製的X70級準914 mm×36.5 mm直縫埋弧銲管，其管體及銲接接頭的拉伸性能、斷裂韌性及硬度等指標全部滿足DNV-OS-F101標準要求，主要性能指標達到瞭研製技術目標要求。
대심해관선용강관적연제배경급기술목표진행료상세천술。통과채용저C고Mn-Nb-Ti합금화적성분설계화합리적TMCP공예공제，개발출구유고강도、저굴강비화우이저온인성량호필배적X70급36.5 mm후벽관선강。채용JCOE제관공예시제적X70급준914 mm×36.5 mm직봉매호한관，기관체급한접접두적랍신성능、단렬인성급경도등지표전부만족DNV-OS-F101표준요구，주요성능지표체도료연제기술목표요구。
In this article, it expatiated the development background and technical objectives of steel pipe used for deep-sea pipeline. By adopting the low C high Mn-Nb-Ti alloying composition design and reasonable TMCP process control, it developed high strength, low yield ratio and good match of low temperature toughness X70 pipeline steel with 36.5 mm thick wall thickness. The X70 ?914 mm ×36.5 mm SAWL pipe were trialed by JCOE pipe manufacturing process. The tensile properties, fracture toughness and hardness etc. of the steel pipe and welded joints all meet the requirements of DNV-OS-F101 standard. The main performance indicators reach requirements of technical development.
