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    70 Years History of Domestic Steel Tube-making Industry
    WEI Xuezhi, ZHUANG Gang, WANG Xu
    2020, 49(1): 1-6.
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    Controversial Issues Concerning Development of Hi-Cr Ferrite Heat-resisting Steel Tube(PartⅢ)
    HE Defu, WANG Jingying
    2020, 49(1): 7-13.
    Abstract PDF
    Calculation of Unit Rolling Pressure for Rotary Rolling of Seamless Steel Tube
    LUO Tao, DENG Jigang
    2020, 49(1): 14-18.
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    Experimental Study on Basic Characteristics of Steel for Making L80-9Cr Corrosion-resistant Oil Well Pipe
    SHI Xiaoxia, REN Huiping, LI Xiao, ZHANG Zhao, ZHAN Fei
    2020, 49(1): 19-23.
    Abstract PDF
    Study on Contact-welding Process for X70 Heavy-wall HFW Pipe
    ZUO Lanlan
    2020, 49(1): 24-28.
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    Effect by Tempering Temperature on Microstructure and Properties of Hot-rolled High Strength Bainite Steel Pipe
    CHENG Yefeng, CHENG Juqiang, YOU Renjie
    2020, 49(1): 29-32.
    Abstract PDF
    Development and Performance Study of X52NS/825 Metallurgical Clad Steel Pipe as to Serve in Oversea Oilfield
    CHEN Lijuan, SHANG Feng, FAN Xuehua, YU Yong, JI Yongbo
    2020, 49(1): 33-37.
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    Development of 194 mm Series Passes for Mini-MPM
    WANG Dong, WANG Zenghai, ZHANG Wenliang, LV Hongli, SHI Jianghuan
    2020, 49(1): 38-42.
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    Improvement on Yield of Large-sized Seamless Steel Tube by Optimizing Multiple-length Range
    LIN Zhen, WEN Bo, CHEN Shengming, CONG Gangjun
    2020, 49(1): 43-46.
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    Investigation of Reasons for In-well Leakage of Secondary-drilling Casing as Used in a Certain Extra-deep Complicated Well
    LU Xiaoqing, LV Qinggang, ZHANG Yong, LI Zheng
    2020, 49(1): 47-51.
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    Application of Gleeble 3500 to Development and Production of Seamless Steel Pipes
    CHEN Yan, ZHANG Zheping, LIU Jiangcheng
    2020, 49(1): 52-56.
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    Finite Element Analysis of Effect on Pierced Billet Dimensional Accuracy by Retained Mandrel Speed of MPM Pipe Mill
    ZHOU Zhengping
    2020, 49(1): 57-60.
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    Effect by Quench Cooling Speed on Microstructure and Properties of L80-13Cr Heavy-wall Steel Tube
    WANG Jinyong, CAO Hongbo, QI Xilun, CHEN Mingyi
    2020, 49(1): 61-64.
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    Experimental Study on High-temperature Tensile Properties of Steel for Casing as used in Thermal Recovery Well
    LI Guanghui, WANG Haibo, ZHAO Hongshan, SUN Lianpo, JI Bingyin
    2020, 49(1): 65-67.
    Abstract PDF
    Analysis of Reason for Cracking of Cold-drawn Hydraulic Cylinder Pipe
    HUANG Youqi, WANG Shiming
    2020, 49(1): 68-71.
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    Present Situations Concerning Design and Evaluation of Premium Connection as Applied to HPHT well
    WANG Yi, ZHANG Jianbing, NIE Yan, DING Li
    2020, 49(1): 72-76.
    Abstract PDF
    Pipe-rolling process technology （Part Ⅶ）—Practical Technology for Hot-rolled Seamless Steel Tube
    CHENG Haitao, LI Chibo, LI Xiao
    2020, 49(1): 77-83.
    Abstract PDF