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Practical Application of Eliminating Widmanstatten Structure in Q345B High Pressure Fertilizer Pipe
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Hong Kang, Zhan-fei Wu, Zhi-wen Guo, Hai-long Jiang, Fei Zhan, Cheng-yuan Zhang
Rare Earth Steel | 2021, 47(3) : 54 - 57
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Rare Earth Steel | 2021, 47(3): 54-57
• Quality of Variety and Experiment and Research •
Practical Application of Eliminating Widmanstatten Structure in Q345B High Pressure Fertilizer Pipe
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Hong Kang, Zhan-fei Wu, Zhi-wen Guo, Hai-long Jiang, Fei Zhan, Cheng-yuan Zhang
Affiliations
  • Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2021-06-25 doi: 10.13647/j.cnki.btgkj.2021.03.015
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In this paper, it is introduced the micro analysis of microstructure for Q345B high pressure fertilizer pipe with metalloscope aiming at the problem of its unqualified longitudinal impact property and found out its cause is the existence of a large number of Widmanstatten structure. The sample tube was treated with the heat treatment of normalizing process and the results showed that the Widmanstatten structure in steel could be eliminated by normalizing treatment as well as the longitudinal impact energy is greater than 120 J, reaching 3 times of the lower limit value of impact in standard GB 6479-2013.

Q345B high pressure fertilizer pipe  /  Widmanstatten structure  /  normalizing  /  impact properties
康虹, 邬占飞, 郭志文, 姜海龙, 詹飞, 张程远. Q345B高压化肥管中魏氏组织消除的实践应用. 包钢科技, 2021 , 47 (3) : 54 -57 . DOI: 10.13647/j.cnki.btgkj.2021.03.015
Hong Kang, Zhan-fei Wu, Zhi-wen Guo, Hai-long Jiang, Fei Zhan, Cheng-yuan Zhang. Practical Application of Eliminating Widmanstatten Structure in Q345B High Pressure Fertilizer Pipe[J]. Science & Technology of Baotou Steel, 2021 , 47 (3) : 54 -57 . DOI: 10.13647/j.cnki.btgkj.2021.03.015
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Year 2021 volume 47 Issue 3
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doi: 10.13647/j.cnki.btgkj.2021.03.015
  • Receive Date：2021-05-06
  • Online Date：2026-10-20
  • Published：2021-06-25
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  • Received：2021-05-06
Affiliations
    Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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