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    Present Situation of Domestic Steel Tube Industry in 2019 and Prospect Forecast
    ZHONG Xidi
    2019, 48(4): 1-5.
    Abstract PDF
    Application of Controlled Rolling in Manufacture of N80 Class 1 Steel Grade Oil Casing
    ZHANG Ran
    2019, 48(4): 6-9.
    Abstract PDF
    Development of BG125SS Ultra-high Strength Sulfur-resistant OCTG
    ZHAO Jimei
    2019, 48(4): 10-15.
    Abstract PDF
    Research on UH165 High Strength High Toughness Drill Pipe Material
    CHEN Changqing, ZHANG Xiaohui, WANG Xianlin, JI Haitao, WANG Qinglin, KONG Lingnan
    2019, 48(4): 16-20.
    Abstract PDF
    Performance Analysis and Improvement of 20MnTiB Seamless Steel Tube for Hydraulic Cylinder Body
    XIA Wenbin, ZHENG Ge, ZHOU Yong, ZHAO Yinghui
    2019, 48(4): 21-24.
    Abstract PDF
    Research and Development of Φ610 mm TC4 Big Diameter Titanium Alloy Hot Rolled Seamless Tube
    WANG He, HE Fengmin, HU Shunzhong, GUO Hai, ZHENG Bing, CHEN Yu
    2019, 48(4): 25-30.
    Abstract PDF
    Development of Design Software for Rotary Piercing Mill Plug
    WANG Jiugang
    2019, 48(4): 31-36.
    Abstract PDF
    Analysis of Causes for Subsurface Hole and Surface Crack in N80Q Tubing
    ZHOU Zhengping
    2019, 48(4): 37-40.
    Abstract PDF
    Discussion on Manufacturing Process Optimization of Hot-rolled Stainless Steel Tube
    CHEN Hongqi, HU Yadong, ZHUANG Gang
    2019, 48(4): 41-46.
    Abstract PDF
    Realization of Milling Width Dynamic Adjustment of Edge Milling Machine
    PAN Jun
    2019, 48(4): 47-50.
    Abstract PDF
    Development of Manufacturing Process for P91 Steel Large Diameter Thick Wall Boiler Pipe
    XU Lujun
    2019, 48(4): 51-55.
    Abstract PDF
    Understanding of Intermediate Frequency Hot Expanding Process for Seamless Steel Tube
    SANG Wei, CHEN Junde, WANG Honghai, CHEN Dong
    2019, 48(4): 56-60.
    Abstract PDF
    Calculation of Accessibility of Non-API Casing through Well Bending Section
    LI Jianliang, WANG Lei, JI Bingyin, SHI Jiaoqi
    2019, 48(4): 61-64.
    Abstract PDF
    Analysis of Causes for Fracture Failure of H13 Large Size Mandrel
    LIU Jiaming, WANG Chaofeng, YANG Weiguo, HU Ping, LU Minghe
    2019, 48(4): 65-67.
    Abstract PDF
    Study on Automated Ultrasonic Testing Method for Seamless Steel Tube
    HUANG Lei, ZHANG Hongbo, ZHANG Baoli, CAO Mengyu
    2019, 48(4): 68-72.
    Abstract PDF
    Ultrasonic Testing Analysis of Large Diameter Thick Wall SAWH Pipe Crack
    MA Zhaohui, QIANG Huiming, XI Shaopeng, WANG Zhenhua, HU Xubo, GOU Shifeng, YAN Long, YAN Zhe
    2019, 48(4): 73-76.
    Abstract PDF
    Design and Application of Specialized Extensometer for Pipeline Steel
    WANG Shuren, YE Jingshen, WU Jinhui, DANG Xiaoyu
    2019, 48(4): 77-80.
    Abstract PDF
    Pipe-rolling process technology (Part Ⅳ)—Practical Technology for Hot-rolled Seamless Steel Tube
    CHENG Haitao, LI Chibo, LI Xiao
    2019, 48(4): 81-83.
    Abstract PDF