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    Comparative Study on Management and Disclosure of Carbon Information by Steel Enterprises at Home and Abroad
    WANG Liang, TANG Ling
    2021, 50(1): 1-6. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.01.06
    Abstract PDF
    Prospect of Future Development Direction of Mandrel Mill Pipe-rolling Technology
    OUYANG Jian, Mu Dong
    2021, 50(1): 7-12. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.07.12
    Abstract PDF
    Present Situation Concerning Application of Ti Alloy Seamless Pipe to Oil/Gas Wells and Relevant Process R & D
    DONG Entao, YU Wei, SHI Jiaxin, XU Zeqing, Han Ying, ZHANG Jiaming
    2021, 50(1): 13-17. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.13.17
    Abstract PDF
    Wear Analysis for Strength Design of Casing Strings in Deep and Ultra-deep Wells
    DU Cong, ZHANG Jianbing, JU Luyan, LUO Chu
    2021, 50(1): 18-22. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.18.22
    Abstract PDF
    R D and Application of Φ149.2 mm Hi-torsion Drill Pipe for Ultra-deep Well
    ZHANG Ran, WANG Xianlin, WANG Qinglin, LI Zhubin
    2021, 50(1): 23-28. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.23.28
    Abstract PDF
    R D of 0Cr15Ni5Cu2Ti Stainless Steel Pipe
    DU Xiaobing, SHI Jun
    2021, 50(1): 29-33. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.29.33
    Abstract PDF
    Research on Mechanism of Surface Blackening of Hot-galvanized Steel Pipe and Discussion on Relevant Solution
    XU Zhiru, XIONG Junbo, LI Yuanpeng, LUO Xianfeng
    2021, 50(1): 34-38. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.34.38
    Abstract PDF
    Development Mechanisms of Surface Jutter Defects of Light-wall Pipe for Making Metal Furniture and Relevant Preventative Measures
    CAO Guofu, CAO Ji
    2021, 50(1): 39-44. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.39.44
    Abstract PDF
    Analysis of Factors Affecting Bore Accuracy of Hi-precision Cold-drawn Steel Pipe
    WEI Jinyu, LIU Xiancui, WANG Jiacong, Liu Yang
    2021, 50(1): 45-48. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.45.48
    Abstract PDF
    Design and Application of Hot-tube Turnover Device of Plug Pipe Mill
    WU Qiang, ZHANG Zhenyu, YING Yuzhen, WANG Bin
    2021, 50(1): 49-51. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.49.51
    Abstract PDF
    Research on and Application of Heat Treatment Process for 29Mn5 P110 Casing
    GUO Haiming, HOU Xiaozhen, RAN Xu
    2021, 50(1): 52-56. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.52.56
    Abstract PDF
    Design and Application of Control System for Pipe Friction Stir Welding Machine
    SU Hailong, LUO Zongan, XIE Guangming
    2021, 50(1): 57-61. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.57.61
    Abstract PDF
    Localized Upgrading of USP for Medium-voltage Drive System of Piercing Mill and Application Effectiveness
    WU Fei, GONG Tao, MA Jia, CHANG Yunjian
    2021, 50(1): 62-64. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.62.64
    Abstract PDF
    Study on Application of Water-based Epoxy Resin Antirust Coating to Oil Casing
    ZHANG Ling, ZHANG Jingkun, DONG Qing, CHI Wei, GU Chunxiang, ZHANG Donghai
    2021, 50(1): 65-69. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.65.69
    Abstract PDF
    New Design of Tool for Measuring Radial Deviation of Weld Steel Pipe
    WU Yusheng, ZHAO Zengqiang, WU Laiyou, DAI Zhijian
    2021, 50(1): 70-74. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.70.74
    Abstract PDF
    Application of Array Flux Leakage Inspection Technique to Steel Tube Flaw Detection
    GAO Xiang, HU Junwei, HU Caiwang
    2021, 50(1): 75-77. DOI: 10.19938/j.steelpipe.1001-2311.2021.1.75.77
    Abstract PDF
    Finishing process and inspection technique of steel pipe—Practical Technology for Hot-rolled Seamless Steel Tube
    CHENG Haitao, LI Chibo, LI Xiao
    2021, 50(1): 78-83.
    Abstract PDF