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《IRON AND STEEL》 2000-04
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IMPROVEMENT ON TOUGHNESS AND GRAIN REFINEMENT OF J55 GRADE OIL CASINGS

HE Jingchun JIANG Junpu (University of Science and Technology Beijing) GUO Zhaocheng LI Chunlong LIU Zhe (Baotou Iron and Steel(Group)Co )  
The factors which influence toughness and grain size of J55 grade oil casing produced by Baotou Iron and Steel(Group)Co have been studied in detail through field investigation and experiments in laboratory The problems that the CVN toughness and grain size did not meet the standards were overcomed successfully by increasing the [Mn] and [Al] total and decreasing [C] in the steel with secondary refining and rolling temperature control The mechanical properties and grain size of some 5000 tons trial castings fully met the requirements specified by API standard The optimum steel chemistry and processing technology have been recommended to Baotou Iron and Steel(Group)Co
【CateGory Index】: TF76
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【References】
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3 WANG Wei 1, ZHOU Xiao mei 2,GUO Ji xun 3 (1.Department of Environmental Science, Northeast Normal University, Changchun 130024, China; 2.Department of Biology, Siping Normal College, Siping 136000, China; 3.Grassland Research Institute, Northeas;Effect of environmental factors on CO_2 release rate of soil respiration of two main communities in Lymus chinensis grassland in northeastern China[J];Acta Pratacultural Science;2002-01
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6 TANG Jian,JIANG Hong,HE Bin-yu(College of Resource and Environment Sciences,Xingjian University,Urumqi 830046,China);FORECAST OF RAINFALL CALAMITY IN THE ISOLATED OASIS,SOUTH OF TARIM BASIN BASED ON GM(1,1) MODEL[J];Journal of Geological Hazards and Environment Preservation;2006-02
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【Co-references】
Chinese Journal Full-text Database 3 Hits
1 DONG Zhen (Iron & Steel Research Institute of Baotou Steel (Group) Corporation, Baotou 014010, China);Analysis of internal defect of CC round billet[J];Science & Technology of Baotou Steel(Group) Corporation;2002-04
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