CAJ | 학술논문

根据中亚天然气管道工程C线压气站用直缝管线钢管的技术条件，采用合理的成分设计、严格的炼钢质量控制及控轧控冷工艺，成功开发出具有良好低温韧性的X80宽厚板。产品微观组织以细小均匀的贝氏体为主，复合第二相弥散均匀分布的M/A组元。钢板具有高强度、低屈强比、优良的低温韧性和止裂韧性，在制管焊接过程中表现出良好的焊接性能，经过合理的JCOE工艺制成的直缝埋弧焊管成功应用于中亚C线压气站管线工程。
근거중아천연기관도공정C선압기참용직봉관선강관적기술조건，채용합리적성분설계、엄격적련강질량공제급공알공랭공예，성공개발출구유량호저온인성적X80관후판。산품미관조직이세소균균적패씨체위주，복합제이상미산균균분포적M/A조원。강판구유고강도、저굴강비、우량적저온인성화지렬인성，재제관한접과정중표현출량호적한접성능，경과합리적JCOE공예제성적직봉매호한관성공응용우중아C선압기참관선공정。
According to the technical specifications of the plate for compressor station of the third line of KAZAKHSTAN-CHINA Main Gas Pipeline(The Middle Asia C Line).The heavy gauge X80 wide plate with excellent toughness was developed by adopting reasonable composion design, strict steelmaking quality control and TMCP. A fine granular bainite+M/A constituents were obtained. The plates possess high strength, low Y/T ratio, high toughness, good low temperature crack arrest properties and weldability. The pipe produced with JCOE process was applied to the compressor station of The Middle Asia C Line project.